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Design 911 Design 911 supply Porsche parts, Porsche spares and Porsche accessories, to both retail and to the trade. Our Porsche product and accessory range includes brakes, exhausts, tyres, wheels and Porsche panels and interiors. https://d911api.datadial.net/images/schemaLogo.png https://d911api.datadial.net/images/schemaLogo.png +443456003478 https://d911api.datadial.net Facebook Instagram
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Porsche genuine parts and lifestyle products for Porsche models from Design911

A Quick Look at Porsche

Porsche information on this page is based on details supplied by the manufacturer or distributor, plus any OE references provided with the parts.

Choosing the Right Fit for Your Porsche

Where Porsche is listed for Porsche, use the supplied model coverage and OE references to confirm suitability. Check details that commonly affect fitment such as model year, side/position, and connector type where relevant.

  • Typical reasons people replace these parts include maintaining originality, keeping factory specification, and choosing the latest genuine revisions for peace of mind.
  • Common real-world issues behind many Porsche repairs are age and mileage: oil leaks, cooling system fatigue, brake and suspension wear, corrosion and electrical faults from moisture or heat cycling.
  • Before ordering, confirm part numbers against VIN or option/PR codes, especially for safety‑critical or complex components.
  • When upgrading, decide whether you want pure originality or performance changes, as some aftermarket options may suit specific goals better than genuine.
  • For bigger jobs, replace related seals, hardware and consumables at the same time to avoid repeat labour and compatibility issues.
  • Where available, follow the manufacturer’s fitting and bedding‑in guidance to get the best performance and longevity.

Browse by Category

If you already know the area you are working on, start with the category and then filter by Porsche model. Where real-world symptoms and typical reasons to replace are provided, use them to keep the wording grounded.

Brakes — Brake components are renewed to restore stopping performance, address wear or upgrade a Porsche for fast road or track use. Common symptoms include: Common symptoms include vibration under braking, increased stopping distances, squealing, pulling to one side, warning lights and visible wear to discs and pads.

  • Check whether the parts are OE-equivalent replacements or performance upgrades and match this to how the Porsche is used.
  • Follow any recommended bedding-in procedure and consider replacing discs, pads, sensors and fitting hardware together where advised.

Clothing & Gifts — Porsche-themed clothing and gifts let owners and enthusiasts show their passion off the road, or make ideal presents for fans of the marque. Common symptoms include: Items may become worn, faded, damaged or go out of style, prompting replacement with newer designs.

  • Review available size, colour and material details to help choose the right item and ensure it matches how it will be used.
  • Check any care or washing guidance so garments and accessories keep their appearance for longer.

Lifestyle — To explore different Porsche-inspired lifestyle products or gift ideas. Common symptoms include: General wear from handling or display.

  • Confirm whether items are official Porsche lifestyle products or from trusted partner brands where stated.
  • Consider who the item is for and how it will be used day to day to select the most suitable style or product type.

Keyring — To choose a different design, material or model theme. Common symptoms include: Scratches, worn finishes or loose fittings.

  • Keyrings make simple, practical Porsche-themed gifts and can be matched to specific models or heritage designs where available.
  • If a keyring shows damage or looseness, replace it to avoid losing keys or further wear to finishes.

Size chart — The size chart acts as a practical reference tool for all apparel purchases. Common symptoms include:

Explore Porsche at Design911

View the current Porsche range for Porsche at Design911, then filter by model and category to narrow down to the right parts.

DISPLAYING 193 to 208 (of 19970 products)
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Coolant Hose, Upper. Porsche 982 Boxster / Cayman 2017>> - 982121036C, 982121036B
2
Coolant Hose, Upper. Porsche 982 Boxster / Cayman 2017>>
Special Order item
982121036C
Product Information
Product Information
Coolant Hose, Upper.

Maintain optimal engine cooling performance with the Coolant Hose, Upper. This OEM-quality upper radiator hose is designed to transfer hot coolant from the engine to the radiator, where heat is dissipated to regulate operating temperature.

Fits:
  • Porsche Boxster 718 2.0L Manual (300 Bhp) 2017>>
  • Porsche Boxster 718 2.0L PDK (300 Bhp) 2017>>
  • Porsche Boxster S 718 2.5L Manual (350 Bhp) 05/2017>>
  • Porsche Boxster S 718 2.5L PDK (350 Bhp) 05/2017>>
  • Porsche Boxster T 718 2.0L Manual (300 Bhp) 01/2019>>
  • Porsche Boxster T 718 2.0L PDK (300 Bhp) 01/2019>>
  • Porsche Boxster GTS 718 2.5L Manual (365 Bhp) 05/2017>>
  • Porsche Boxster GTS 718 2.5L PDK (365 Bhp) 05/2017>>
  • Porsche Boxster GTS 718 4.0L Manual (400 Bhp) 01/2019>>
  • Porsche Boxster GTS 718 4.0L PDK (400 Bhp) 01/2019>>
  • Porsche Cayman 718 2.0L Manual (300 Bhp)
  • Porsche Cayman 718 2.0L PDK (300 Bhp)
  • Porsche Cayman S 718 2.5L Manual (350 Bhp)
  • Porsche Cayman S 718 2.5L PDK (350 Bhp)
  • Porsche Cayman T 718 2.0L Manual (300 Bhp)
  • Porsche Cayman T 718 2.0L PDK (300 Bhp)
  • Porsche Cayman GTS 718 2.5L Manual (365 Bhp)
  • Porsche Cayman GTS 718 2.5L PDK (365 Bhp)
  • Porsche Cayman GTS 718 4.0L Manual (400 Bhp)
  • Porsche Cayman GTS 718 4.0L PDK (400 Bhp)
  
Diagram Ref No 15 (Diagram Ref No 16 Included)

What This Product Does:

  • Transfers hot coolant from the engine to the radiator
  • Enables proper heat dissipation
  • Maintains stable engine operating temperature
  • Supports continuous coolant circulation


Symptoms Of Wear Or Failure:

  • Coolant leaks near the radiator or engine bay
  • Engine overheating or rising temperature gauge
  • Low coolant warning light
  • Frequent coolant loss requiring top-offs
  • Steam from under the hood
  • Sweet coolant smell from the engine compartment
  • Cracks, splits, or dry rot on the hose surface
  • Swelling or bulging due to internal weakening
  • Soft, spongy, or brittle hose texture
  • Coolant residue or wetness around hose clamps and fittings


Why Replacement Matters:

  • The upper coolant hose is responsible for carrying hot coolant from the engine to the radiator for heat removal. If the hose becomes worn, cracked, or weakened, it can leak or fail under pressure, causing rapid coolant loss.
  • A failed upper hose can quickly lead to engine overheating, which may result in serious damage such as warped components or head gasket failure. Because this hose operates under high heat and pressure, replacing it when signs of wear appear is essential for maintaining cooling system reliability.
  • Replacing the hose helps restore proper coolant circulation, prevent leaks, and protect the engine from costly overheating-related repairs.



Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

982121036C
982121036C
982121036B

The product you are viewing cross references to these numbers
Coolant Hose, Lower. Porsche 982 Boxster / Cayman 2017>> - 982121049
2
Coolant Hose, Lower. Porsche 982 Boxster / Cayman 2017>>
Special Order item
982121049
Product Information
Product Information
Coolant Hose, Lower.
Ensure dependable cooling system performance with the Coolant Hose, Lower. This OEM-quality lower radiator hose is designed to carry coolant between the radiator and engine, supporting proper heat exchange and stable operating temperatures.

Fits:
  • Porsche Boxster 718 2.0L Manual (300 Bhp) 2017>>
  • Porsche Boxster 718 2.0L PDK (300 Bhp) 2017>>
  • Porsche Boxster S 718 2.5L Manual (350 Bhp) 05/2017>>
  • Porsche Boxster S 718 2.5L PDK (350 Bhp) 05/2017>>
  • Porsche Boxster T 718 2.0L Manual (300 Bhp) 01/2019>>
  • Porsche Boxster T 718 2.0L PDK (300 Bhp) 01/2019>>
  • Porsche Boxster GTS 718 2.5L Manual (365 Bhp) 05/2017>>
  • Porsche Boxster GTS 718 2.5L PDK (365 Bhp) 05/2017>>
  • Porsche Boxster GTS 718 4.0L Manual (400 Bhp) 01/2019>>
  • Porsche Boxster GTS 718 4.0L PDK (400 Bhp) 01/2019>>
  • Porsche Cayman 718 2.0L Manual (300 Bhp)
  • Porsche Cayman 718 2.0L PDK (300 Bhp)
  • Porsche Cayman S 718 2.5L Manual (350 Bhp)
  • Porsche Cayman S 718 2.5L PDK (350 Bhp)
  • Porsche Cayman T 718 2.0L Manual (300 Bhp)
  • Porsche Cayman T 718 2.0L PDK (300 Bhp)
  • Porsche Cayman GTS 718 2.5L Manual (365 Bhp)
  • Porsche Cayman GTS 718 2.5L PDK (365 Bhp)
  • Porsche Cayman GTS 718 4.0L Manual (400 Bhp)
  • Porsche Cayman GTS 718 4.0L PDK (400 Bhp)
  
Diagram Ref No 18

What This Product Does:

  • Returns cooled coolant from the radiator to the engine
  • Maintains continuous coolant circulation
  • Helps regulate engine operating temperature
  • Prevents overheating by supporting efficient heat exchange


Symptoms Of Wear Or Failure:

  • Coolant leaking beneath the vehicle
  • Engine overheating or fluctuating temperature gauge
  • Low coolant warning light
  • Frequent coolant top-offs
  • Steam from under the hood
  • Sweet coolant odor from the engine bay
  • Cracks, splits, or visible deterioration in the hose
  • Bulging or swelling, indicating internal weakening
  • Soft, mushy, or brittle rubber texture
  • Coolant residue around hose clamps or connection points


Why Replacement Matters:

  • The lower coolant hose plays a critical role in returning cooled coolant from the radiator back to the engine. If this hose becomes worn, cracked, or weakened, it can lead to coolant leaks and reduced circulation.
  • Failure to replace a damaged hose may result in overheating, engine performance issues, or costly repairs caused by coolant loss. Because the lower hose operates under constant heat and pressure, deterioration over time is normal.
  • Replacing it at the first signs of wear helps maintain proper coolant flow, protects the engine from overheating, and ensures reliable long-term cooling system performance.



Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

982121049
982121049

The product you are viewing cross references to these numbers
Coolant Hose, Radiator. Porsche 982 Boxster / Cayman 2017>> - 982121030
2
Coolant Hose, Radiator. Porsche 982 Boxster / Cayman 2017>>
Special Order item
982121030
Product Information
Product Information
Coolant Hose, Radiator.
Maintain efficient engine cooling with the Coolant Hose, Radiator. This OEM-quality radiator hose is designed to carry coolant between the engine and radiator, ensuring proper heat dissipation and stable operating temperatures.

Fits:
  • Porsche Boxster 718 2.0L Manual (300 Bhp) 2017>>
  • Porsche Boxster 718 2.0L PDK (300 Bhp) 2017>>
  • Porsche Boxster S 718 2.5L Manual (350 Bhp) 05/2017>>
  • Porsche Boxster S 718 2.5L PDK (350 Bhp) 05/2017>>
  • Porsche Boxster T 718 2.0L Manual (300 Bhp) 01/2019>>
  • Porsche Boxster T 718 2.0L PDK (300 Bhp) 01/2019>>
  • Porsche Boxster GTS 718 2.5L Manual (365 Bhp) 05/2017>>
  • Porsche Boxster GTS 718 2.5L PDK (365 Bhp) 05/2017>>
  • Porsche Boxster GTS 718 4.0L Manual (400 Bhp) 01/2019>>
  • Porsche Boxster GTS 718 4.0L PDK (400 Bhp) 01/2019>>
  • Porsche Cayman 718 2.0L Manual (300 Bhp)
  • Porsche Cayman 718 2.0L PDK (300 Bhp)
  • Porsche Cayman S 718 2.5L Manual (350 Bhp)
  • Porsche Cayman S 718 2.5L PDK (350 Bhp)
  • Porsche Cayman T 718 2.0L Manual (300 Bhp)
  • Porsche Cayman T 718 2.0L PDK (300 Bhp)
  • Porsche Cayman GTS 718 2.5L Manual (365 Bhp)
  • Porsche Cayman GTS 718 2.5L PDK (365 Bhp)
  • Porsche Cayman GTS 718 4.0L Manual (400 Bhp)
  • Porsche Cayman GTS 718 4.0L PDK (400 Bhp)
  
Diagram Ref No 17

What This Product Does:

  • Carries hot coolant from the engine to the radiator
  • Returns cooled coolant back to the engine for continuous circulation
  • Helps prevent overheating and maintain stable engine temperature
  • Supports overall cooling system efficiency and performance

Symptoms Of Wear Or Failure:
  • Coolant leaks under the vehicle or near the radiator
  • Engine overheating or rising temperature gauge
  • Low coolant warning light
  • Frequent need to top off coolant
  • Steam from under the hood
  • Sweet coolant smell from the engine bay
  • Cracks, splits, or visible wear along the hose
  • Bulging or swelling due to internal weakening
  • Soft, spongy, or brittle hose texture
  • Coolant residue or dampness around hose clamps or fittings

Why Replacement Matters:
  • Replacing a worn radiator coolant hose is essential because it plays a critical role in maintaining proper coolant circulation between the engine and radiator. Over time, heat, pressure, and constant coolant exposure can cause the hose to weaken, crack, or leak.
  • If the hose fails, it can lead to rapid coolant loss and engine overheating, which may result in serious damage such as warped components or head gasket failure. A new hose helps restore reliable cooling system performance, prevents leaks, and protects the engine from costly overheating-related repairs.
  • Timely replacement ensures safe operation and long-term engine reliability.



Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

982121030
982121030

The product you are viewing cross references to these numbers
Radiator coolant hose, return. Porsche 958 Cayenne 3.0L Diesel 2012-18 - 95810640250
2
Radiator coolant hose, return. Porsche 958 Cayenne 3.0L Diesel 2012-18
Special Order item
95810640250
Product Information
Product Information
Radiator coolant hose, return.
This genuine Porsche radiator coolant hose serves as a return line in the cooling system, carrying coolant back toward the radiator after it has circulated through the engine and absorbed heat. By ensuring proper coolant routing and flow, the hose supports efficient heat dissipation, helps maintain stable engine temperatures, and reduces the risk of overheating, especially under load or in prolonged driving conditions.

Fits:
Porsche 958 Cayenne 3.0L Diesel 2012 - 2018
 * PR:D43, D1V, D50, D51, DV7

Diagram ref no 21

The Porsche Genuine OE Radiator Coolant Return Hose 95810640250 is an essential cooling system component for the Porsche Cayenne 958 3.0 L Diesel (2012–2018). It ensures coolant is reliably returned to the radiator after heat exchange in the engine, helping maintain proper operating temperature and prevent overheating. As a factory-specified Porsche part, it offers correct dimensions, quality materials, and dependable performance matched to the original design.

Fitment / Position on Car
•  Installed on: Engine cooling circuit return pathway
•  Location: Between engine coolant outlets and the radiator inlet
•  System interface: Works in conjunction with upper and lower radiator hoses, thermostat connections, and coolant pipes to complete the cooling loop

Coolant hoses and return lines operate under constant heat, pressure and vibration. Over time, aging hoses can become brittle, crack, swell, or leak, leading to coolant loss and potential engine overheating. Installing a genuine Porsche OE coolant return hose ensures the correct material formulation and engineered fit, helping preserve cooling system integrity and long-term engine reliability - exactly as Porsche originally intended.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

95810640250
95810640250

The product you are viewing cross references to these numbers
Radiator coolant hose, upper. Porsche 958 Cayenne 3.0L Diesel 2012-18 - 95810640140
2
Radiator coolant hose, upper. Porsche 958 Cayenne 3.0L Diesel 2012-18
Special Order item
95810640140
Product Information
Product Information
Radiator coolant hose, upper.
This Porsche Genuine OE upper radiator coolant hose carries engine coolant between the radiator and engine at the top of the cooling circuit. It ensures reliable coolant flow from the engine into the radiator where heat is dissipated, helping maintain stable operating temperatures and preventing overheating.

Fits:
Porsche 958 Cayenne 3.0L Diesel 2012 - 2018
 * PR:D43, D1V, D50

Diagram ref no 19

The Porsche Genuine OE Upper Radiator Coolant Hose 95810640140 is a vital cooling-system component for the Porsche Cayenne 3.0 L Diesel (958), ensuring proper flow of coolant into the radiator. Its Porsche-specified design, fit, and materials help preserve engine thermal stability, support reliable performance, and maintain correct factory coolant routing.

Fitment / Position on Car
•  Installed on: Upper section of the engine cooling system
•  Location: Between the top radiator outlet and corresponding engine coolant inlet
•  System interface: Works with radiator, thermostat housing, coolant pipes, and clamps to complete the cooling loop

Coolant hoses are exposed to high heat, pressure, and vibration over time, which can cause swelling, cracking, or leaks. A failed upper radiator hose can lead to coolant loss and engine overheating, risking serious engine damage. Using a fresh hose ensures the correct material formulation, dimensions, and durability - delivering long-lasting performance and peace of mind.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

95810640140
95810640140

The product you are viewing cross references to these numbers
Radiator coolant hose, lower. Porsche 958 Cayenne 3.6L 2011-18 - 95810640211, 95810640210
2
Radiator coolant hose, lower. Porsche 958 Cayenne 3.6L 2011-18
Special Order item
95810640211
Product Information
Product Information
Radiator coolant hose, lower.
This Porsche Genuine OE Radiator Coolant Pipe/Hose is essential for correct coolant flow in the Cayenne 958 3.6L petrol cooling system. It ensures that coolant is delivered where it’s needed, maintains proper operating temperatures, and supports reliable engine performance.

Fits:
Porsche 958 Cayenne 3.6L 2011 - 2018

Diagram ref no 14

This genuine Porsche coolant pipe/hose forms a key segment of the engine’s water-coolant circulation path. It connects the radiator, engine block, thermostat housings and other cooling components, providing a flexible, leak-resistant channel for coolant to flow through the cooling system. By maintaining correct coolant routing and sealing, it helps the engine stay within its optimal operating temperature range and reduces the risk of overheating under everyday and demanding driving conditions.

Fitment / Position on Car
•  Installed on: Engine cooling circuit
•  Location: Connects radiator outlets to coolant pathways (lower/centre position in Cayenne cooling diagrams)
•  System interface: Works with radiator, thermostat housings, hose clamps and coolant channels to form a sealed cooling loop

Coolant hoses and pipes operate under heat, pressure and engine vibration, which can cause them to harden, swell, crack or leak over time. A failed coolant hose can lead to loss of coolant, overheating, engine damage, and costly repairs. Replacing the coolant pipe with a genuine Porsche OE part ensures the correct material, size, and original engineering standards - preserving cooling system integrity and performance.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

95810640211
95810640211
95810640210

The product you are viewing cross references to these numbers
Water coolant top hose supply. Porsche 958 Cayenne 4.8L V8 - 95810640200
2
Water coolant top hose supply. Porsche 958 Cayenne 4.8L V8
Special Order item
95810640200
Product Information
Product Information
Water coolant top hose, supply.
This genuine Porsche water coolant top hose is designed to maintain correct hose routing, fitment, and material performance in the engine cooling system of high-performance Porsche Cayenne V8 models.

Fits:
Porsche 958 Cayenne S / GTS 4.8ltr V8 - 2010 to 2017
Porsche 958 Cayenne turbo / turbo S - 2010 to 2017

Diagram ref no 11

This hose serves as the top supply line in the cooling system, carrying engine coolant from the engine to the radiator (or between key cooling components) under pressure. It ensures reliable coolant flow and temperature management so the engine stays within its optimal operating range.

Fitment / Position on Car
•  Installed on: Engine cooling system, as the upper supply hose
•  Location: Between the engine’s outlet and the radiator inlet / supply path in the cooling circuit
•  Role: Helps carry hot coolant out of the engine toward the radiator’s heat exchange core

Coolant hoses are exposed to heat, pressure, and vibration every time the engine runs. Over time, these stresses can cause hoses to crack, soften, or leak - potentially leading to overheating and engine damage. Installing a genuine Porsche OE hose like the 95810640200 ensures correct material and fit quality, preserving engine cooling performance and system reliability exactly as Porsche intended.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

95810640200
95810640200

The product you are viewing cross references to these numbers
Breather Line, Cooler For Coolant. Porsche 982 / 982C / 991.2 2017>> - 9P1121465, 9P1121466
3
Breather Line, Cooler For Coolant. Porsche 982 / 982C / 991.2 2017>>
Special Order item
9P11214
Product Information
Product Information
Breather Line, Cooler For Coolant.
Ensure proper cooling system ventilation and pressure control with the Breather Line, Cooler for Coolant. This breather line is designed to route air and vapor from the coolant cooler system, helping maintain stable pressure and efficient coolant circulation under varying engine temperatures.  

Fits:
  • Porsche Boxster 718 2.0L Manual (300 Bhp) 2017>>
  • Porsche Boxster 718 2.0L PDK (300 Bhp) 2017>>
  • Porsche Boxster S 718 2.5L Manual (350 Bhp) 05/2017>>
  • Porsche Boxster S 718 2.5L PDK (350 Bhp) 05/2017>>
  • Porsche Boxster T 718 2.0L Manual (300 Bhp) 01/2019>>
  • Porsche Boxster T 718 2.0L PDK (300 Bhp) 01/2019>>
  • Porsche Boxster GTS 718 2.5L Manual (365 Bhp) 05/2017>>
  • Porsche Boxster GTS 718 2.5L PDK (365 Bhp) 05/2017>>
  • Porsche Boxster GTS 718 4.0L Manual (400 Bhp) 01/2019>>
  • Porsche Boxster GTS 718 4.0L PDK (400 Bhp) 01/2019>>
  • Porsche Boxster Spyder / Sypder RS 718 4.0L 01/2019>>
  • Porsche Boxster 25 Years 718 4.0L Manual (400 Bhp) 01/2020>>
  • Porsche Boxster 25 Years 718 4.0L PDK (400 Bhp) 01/2020>>
  • Porsche 991.2 Carrera 2 3.0L (370 Bhp) 2016-19
  • Porsche 991.2 Carrera 2S / GTS 3.0L (420/450 Bhp) 2016-19
  • Porsche 991.2 Carrera 4 3.0L (370 Bhp) 2016-19
  • Porsche 991.2 Carrera 4S / GTS 3.0L (420/450 Bhp) 2016-19
  • Porsche 991.2 Cabriolet 2 3.0L (370 Bhp) 2016-19
  • Porsche 991.2 Cabriolet 2S / GTS 3.0L (420/450 Bhp) 2016-19
  • Porsche 991.2 Cabriolet 4 3.0L (370 Bhp) 2016-19
  • Porsche 991.2 Cabriolet 4S / GTS 3.0L (420/450 Bhp) 2016-19
  • Porsche 991.2 Targa 4 3.0L (370 Bhp) 2016-19
  • Porsche 991.2 Targa 4S / GTS 3.0L (420/450 Bhp) 2016-19
  • Porsche 991.2 Speedster 4.0L (510Bhp) 2019
  • Porsche 991.2 GT3 4.0L (500 Bhp) / GT3 RS 4.0L (520 Bhp) 2017-19
  • Porsche 991.2 GT2 RS 3.8L PDK (700 bhp) 2018-19
  • Porsche Cayman 718 2.0L Manual (300 Bhp)
  • Porsche Cayman 718 2.0L PDK (300 Bhp)
  • Porsche Cayman S 718 2.5L Manual (350 Bhp)
  • Porsche Cayman S 718 2.5L PDK (350 Bhp)
  • Porsche Cayman T 718 2.0L Manual (300 Bhp)
  • Porsche Cayman T 718 2.0L PDK (300 Bhp)
  • Porsche Cayman GTS 718 2.5L Manual (365 Bhp)
  • Porsche Cayman GTS 718 2.5L PDK (365 Bhp)
  • Porsche Cayman GTS 718 4.0L Manual (400 Bhp)
  • Porsche Cayman GTS 718 4.0L PDK (400 Bhp)
  • Porsche Cayman GT4 718 4.0L / GT4 RS 718 4.0L  

Diagram Ref No 20

What This Product Does:

  • Vents air and vapor from the coolant cooler system
  • Helps regulate cooling system pressure
  • Supports consistent coolant circulation
  • Reduces strain on hoses, seals, and cooling components

Symptoms Of Wear Or Failure:
  • Coolant leaks near the coolant cooler or hose connections
  • Sweet coolant smell from the engine bay
  • Coolant residue or staining around fittings and clamps
  • Cracked, brittle, or collapsed hose material
  • Loose or leaking hose connections
  • Gradual coolant loss requiring frequent top-offs
  • Pressure buildup in the cooling system (may cause swelling hoses)
  • Steam from under the hood in more severe cases
  • Engine temperature running higher than normal if coolant flow is affected

Why Replacement Matters:
  • Replacing a worn or damaged coolant cooler breather line is important because it helps the cooling system properly vent air and regulate pressure during normal engine operation. Over time, heat and constant exposure to coolant can cause the line to become brittle, cracked, or leak.
  • If the breather line fails, it can lead to coolant loss, pressure buildup, and added strain on surrounding hoses and seals. This may reduce cooling system efficiency and increase the risk of overheating or costly component damage.
  • Installing a new breather line helps prevent leaks, supports stable cooling performance, and protects the engine by maintaining proper system pressure and ventilation.



Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

9P11214
9P1121465
9P1121466

The product you are viewing cross references to these numbers
Radiator water, Centre. Porsche 958 Cayenne 4.8L 2011-18 - 95810613200
2
Radiator water, Centre. Porsche 958 Cayenne 4.8L 2011-18
Special Order item
95810613200
Product Information
Product Information
Radiator water, Centre.
This Porsche Genuine OE Radiator is the factory-specified water coolant radiator for the 2011–2018 Porsche Cayenne 4.8 L V8 platform. Designed for high-efficiency, high-durability performance, it plays a crucial role in maintaining engine thermal stability and ensuring reliable operation whether in daily use or spirited driving.

Fits:
Porsche 958 Cayenne 4.8L S / GTS / Turbo 2011 - 2018
* PR: D6V, D58, DT1, DT5

Diagram Ref No 1.

This radiator is the primary heat exchanger in the Cayenne’s cooling system. It circulates water-based engine coolant through a network of tubes and cooling fins, where heat from the engine is transferred into the surrounding air. By efficiently dissipating heat from the coolant, it maintains stable operating temperatures, prevents overheating, and helps protect internal engine components from thermal stress. Proper cooling also supports optimal fuel efficiency, emission control, and engine longevity.

Functions & Technical Role
•  Primary coolant cooling: Transfers heat from hot coolant to the outside air.
•  Overheat prevention: Keeps engine temperature within safe limits under daily and heavy driving conditions.
•  Factory-matched design: Porsche-specified core size, fin density, and inlet/outlet alignment for exact fit.
•  Durable construction: Built to withstand heat cycling, vibration, and road conditions encountered by the Cayenne platform

The radiator is critical to engine cooling - if the radiator becomes clogged, corroded, or damaged, engine temperatures can rise rapidly, leading to compromised performance, overheating, and even serious mechanical damage. Choosing a genuine Porsche OE radiator ensures correct fitment, thermal performance, and long-term reliability, avoiding the compromises that generic or mismatched cooling components can introduce.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

95810613200
95810613200

The product you are viewing cross references to these numbers
Breather Line, Reservoir. Porsche 971.1 / 971.2 / 976 Panamera 2017>> - 9A712244710
2
Breather Line, Reservoir. Porsche 971.1 / 971.2 / 976 Panamera 2017>>
Special Order item
9A712244710
Product Information
Product Information
Breather Line, Reservoir. 
Maintain proper engine and cooling system ventilation with the Breather Line, Reservoir. This component is designed to route air and vapor from the reservoir system, helping regulate pressure and support smooth, efficient operation.

Fits:
  • Porsche 971.1 Panamera V6 3.0L 2WD (330 Hp) 2017-20
  • Porsche 971.1 Panamera 4 V6 3.0L 4WD (330 Hp) 2017-20
  • Porsche 971.1 Panamera 4 V6 3.0L 4WD Executive 2017-20
  • Porsche 971.1 Panamera 4 3.0L Turbocharged V6 Sport Turismo 2017-20
  • Porsche 971.1 Panamera 4S V6 3.0L 4WD (440 Hp) 2017-20
  • Porsche 971.1 Panamera 4S V6 3.0L 4WD Executive 2017-20
  • Porsche 971.1 Panamera 4S 2.9L Twin-Turbo V6 Sport Turismo 2017-20
  • Porsche 971.1 Panamera 4 E-Hybrid V6 2.9L 4WD 2017-20
  • Porsche 971.1 Panamera 4 E-Hybrid V6 2.9L 4WD Executive 2017-20
  • Porsche 971.1 Panamera 4 E-Hybrid 2.9L Twin-Turbo V6 Sport Turismo 2017-20
  • Porsche 971.2 Panamera 2.9L V6 2021-23
  • Porsche 971.2 Panamera 4 2.9L V6 2021-23
  • Porsche 971.2 Panamera 4 Sport Turismo 2.9L V6 2021-23
  • Porsche 971.2 Panamera 4S 2.9L V6 2021-23
  • Porsche 971.2 Panamera 4S Sport Turismo 2.9L V6 2021-23
  • Porsche 971.2 Panamera 4 E-Hybrid 2.9L V6 2021-23
  • Porsche 971.2 Panamera 4 E-Hybrid Sport Turismo 2.9L V6 2021-23
  • Porsche 971.2 Panamera 4S E-Hybrid 2.9L V6 2021-23
  • Porsche 971.2 Panamera 4S E-Hybrid Sport Turismo 2.9L V6 2021-23
  • Porsche 976 Panamera V6 2.9L 2023>>
  • Porsche 976 Panamera 4 V6 2.9L 2023>>
  • Porsche 976 Panamera 4 E-Hybrid V6 2.9L 2023>>
  • Porsche 976 Panamera 4S E-Hybrid V6 2.9L 2023>>  

Diagram Ref No 9

What This Product Does:

  • Releases trapped air and pressure from the reservoir system
  • Helps prevent pressure buildup that can stress hoses and seals
  • Supports proper coolant reservoir operation during heating/cooling cycles
  • Maintains stable cooling system performance

Symptoms Of Wear Or Failure:
  • Coolant or vapor leaks near the reservoir area
  • Sweet coolant smell from the engine bay
  • Cracked, brittle, or collapsed hose material
  • Loose or damaged hose connections
  • Coolant residue buildup around fittings or clamps
  • Pressure buildup in the cooling system (may cause swelling hoses)
  • Coolant loss over time without obvious major leaks
  • Check engine light (in some cases, if pressure/venting issues affect sensors)

Why Replacement Matters:
  • The reservoir breather line plays a key role in allowing the cooling system to safely vent air and vapor as temperatures rise and fall. If this line becomes cracked, brittle, or blocked, it can lead to improper pressure regulation within the system.
  • Failure to replace a worn breather line may result in coolant leaks, pressure buildup, stressed hoses or seals, and reduced cooling system efficiency. Over time, this can contribute to overheating or additional component damage.
  • Replacing the breather line helps maintain proper system ventilation, prevents unnecessary strain on cooling components, and supports long-term engine reliability.



Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

9A712244710
9A712244710

The product you are viewing cross references to these numbers
Radiator for water coolant fluid. Porsche 971 Panamera 2017-23 / 976 Panamera 2023>> - 9A712125300, PAE121253
2
Radiator for water coolant fluid. Porsche 971 Panamera 2017-23 / 976 Panamera 2023>>
Special Order item
PAE121253
Product Information
Product Information
Radiator for water coolant fluid
This radiator functions as the primary heat exchanger in the Porsche Panamera’s cooling system. It transfers heat from the hot engine coolant into the surrounding air, helping maintain stable engine operating temperatures. Efficient cooling supports power delivery, emission control, and engine longevity - especially under everyday driving and high-load conditions. A properly functioning radiator also reduces the risk of overheating, prevents needless stress on engine components, and contributes to consistent performance.

Fits:
Porsche 971.1 Panamera 2017 - 2020 with 'S' equipment (PR: A8F)
Porsche 971.1 Panamera 2017 - 2020 with 'turbo' equipment (PR: A8H)
Porsche 971.1 Panamera 2017 - 2020 Hybrid (PR:0K3) with 'Standard' equipment (PR:A8C)

Porsche 971.2 Panamera 2021 - 2023
Porsche 976 Panamera 2023 >>

Diagram Ref No 1

The radiator is the heart of the engine’s liquid cooling system, responsible for removing heat from the engine coolant before it returns to the engine. As hot coolant flows through the radiator’s core, heat is transferred to the air passing through the cooling fins, helping maintain ideal engine operating temperatures. Proper cooling prevents overheating, supports consistent performance, protects internal engine components from heat stress, and helps maintain fuel efficiency and emission control.


Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

PAE121253
9A712125300
PAE121253

The product you are viewing cross references to these numbers
Heating Hose. Porsche 971.1 / 971.2 Panamera 2017-24 - 9A781931600
2
Heating Hose. Porsche 971.1 / 971.2 Panamera 2017-24
Special Order item
9A781931600
Product Information
Product Information
Heating Hose.

Ensure consistent cabin warmth and efficient engine heat transfer with the Heating Hose. This OEM-quality hose is designed to transport heated coolant from the engine to the heater core, enabling proper HVAC performance and reliable interior heating.

Fits:

  • Porsche 971.1 Panamera V6 3.0L 2WD (330 Hp) 2017-20
  • Porsche 971.1 Panamera 4 V6 3.0L 4WD (330 Hp) 2017-20
  • Porsche 971.1 Panamera 4 V6 3.0L 4WD Executive 2017-20
  • Porsche 971.1 Panamera 4 3.0L Turbocharged V6 Sport Turismo 2017-20
  • Porsche 971.1 Panamera 4S V6 3.0L 4WD (440 Hp) 2017-20
  • Porsche 971.1 Panamera 4S V6 3.0L 4WD Executive 2017-20
  • Porsche 971.1 Panamera 4S 2.9L Twin-Turbo V6 Sport Turismo 2017-20
  • Porsche 971.1 Panamera Turbo V8 4.0L 4WD (550 Hp) 2017-20
  • Porsche 971.1 Panamera Turbo V8 4.0L 4WD Executive 2017-20
  • Porsche 971.1 Panamera Turbo 4.0L Twin-Turbo V8 Sport Turismo 2017-20
  • Porsche 971.1 Panamera Turbo S E-Hybrid V8 4.0L 4WD 2017-20
  • Porsche 971.1 Panamera Turbo S E-Hybrid V8 4.0L 4WD Executive 2017-20
  • Porsche 971.2 Panamera 2.9L V6 2021-23
  • Porsche 971.2 Panamera 4 2.9L V6 2021-23
  • Porsche 971.2 Panamera 4 Sport Turismo 2.9L V6 2021-23
  • Porsche 971.2 Panamera 4S 2.9L V6 2021-23
  • Porsche 971.2 Panamera 4S Sport Turismo 2.9L V6 2021-23
  • Porsche 971.2 Panamera GTS 4.0L V8 2021-23
  • Porsche 971.2 Panamera GTS Sport Turismo 4.0L V8 2021-23
  • Porsche 971.2 Panamera Turbo S 4.0L V8 2021-23
  • Porsche 971.2 Panamera Turbo S Sport Turismo 4.0L V8 2021-23  

Diagram Ref No 1

What This Product Does:

  • Delivers heated coolant to the heater core
  • Returns coolant back to the engine for continuous circulation
  • Enables proper cabin heating performance
  • Supports overall cooling system efficiency

Symptoms Of Wear Or Failure:
  • Coolant leaks near the heater core or engine bay
  • Sweet coolant smell inside or outside the vehicle
  • Damp carpet or moisture inside the cabin (in some cases)
  • Heater blowing cold or inconsistent warm air
  • Low coolant warning light or frequent coolant top-offs
  • Engine running hotter than normal
  • Cracks, bulging, or swelling along the hose
  • Soft, brittle, or spongy rubber texture
  • Coolant residue around hose fittings or clamps

Why Replacement Matters:
  • Replacing a worn or damaged heating hose is important because it plays a critical role in both the cooling system and the cabin heating system. A failing hose can leak coolant, reducing circulation and causing the engine to run hotter than normal.
  • If the hose ruptures or leaks severely, it may lead to coolant loss, overheating, and costly engine damage. It can also cause poor heater performance and may even allow coolant to enter the cabin area.
  • Installing a new heating hose helps restore proper coolant flow, improves heating efficiency, prevents leaks, and protects the engine from overheating.



Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

9A781931600
9A781931600

The product you are viewing cross references to these numbers
Coolant Hose For Reservoir, Lower. Porsche 971.1 / 971.2 Panamera 2.9L 2017-24 - 9A712210911, 9A712210910
2
Coolant Hose For Reservoir, Lower. Porsche 971.1 / 971.2 Panamera 2.9L 2017-24
Special Order item
9A712210911
Product Information
Product Information
Coolant Hose For Reservoir, Lower.
Maintain proper coolant circulation and engine temperature control with the Coolant Hose for Reservoir, Lower. This hose is designed to connect the coolant reservoir to the cooling system, helping ensure consistent coolant flow and reliable system pressure.

Fits:
  • Porsche 971.1 Panamera 4S 2.9L Twin-Turbo V6 Sport Turismo 2017-20
  • Porsche 971.1 Panamera 4 E-Hybrid V6 2.9L 4WD 2017-20
  • Porsche 971.1 Panamera 4 E-Hybrid V6 2.9L 4WD Executive 2017-20
  • Porsche 971.1 Panamera 4 E-Hybrid 2.9L Twin-Turbo V6 Sport Turismo 2017-20
  • Porsche 971.2 Panamera 2.9L V6 2021-23
  • Porsche 971.2 Panamera 4 2.9L V6 2021-23
  • Porsche 971.2 Panamera 4 Sport Turismo 2.9L V6 2021-23
  • Porsche 971.2 Panamera 4S 2.9L V6 2021-23
  • Porsche 971.2 Panamera 4S Sport Turismo 2.9L V6 2021-23
  • Porsche 971.2 Panamera 4 E-Hybrid 2.9L V6 2021-23
  • Porsche 971.2 Panamera 4 E-Hybrid Sport Turismo 2.9L V6 2021-23
  • Porsche 971.2 Panamera 4S E-Hybrid 2.9L V6 2021-23
  • Porsche 971.2 Panamera 4S E-Hybrid Sport Turismo 2.9L V6 2021-23 
 
Diagram Ref No 10

What This Product Does:

  • Transfers coolant to and from the coolant reservoir
  • Helps maintain the correct coolant level and circulation
  • Supports proper cooling system pressure regulation
  • Prevents overheating by ensuring consistent coolant flow
  • Helps the engine cooling system operate efficiently

Symptoms Of Wear Or Failure:
  • Coolant leaks near the reservoir or under the vehicle
  • Low coolant warning light or repeated coolant top-offs
  • Engine running hotter than normal
  • Visible cracks, splits, or swelling in the hose
  • Soft, spongy, or brittle rubber texture
  • Coolant residue or dampness around hose connections
  • Sweet coolant smell from the engine bay
  • Steam from under the hood (in severe cases)

Why Replacement Matters:
  • Replacing a worn or damaged lower coolant reservoir hose is critical to maintaining proper cooling system performance. This hose helps regulate coolant flow between the reservoir and engine, ensuring consistent pressure and temperature control.
  • Over time, heat and pressure can cause the hose to crack, weaken, or leak. If not replaced, a failing hose can lead to coolant loss, overheating, and potentially severe engine damage. Prompt replacement helps prevent breakdowns, protects vital engine components, and ensures long-term reliability.
  • Installing a new hose restores proper coolant circulation and helps keep your engine operating at a safe and stable temperature.



Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

9A712210911
9A712210911
9A712210910

The product you are viewing cross references to these numbers
Coolant Hose. Porsche 95B.2 Macan / 971.1 / 971.2 / 976 Panamera / 9YA / 9YA.2 Cayenne 2017>> - 9A712105210
2
Coolant Hose. Porsche 95B.2 Macan / 971.1 / 971.2 / 976 Panamera / 9YA / 9YA.2 Cayenne 2017>>
Special Order item
9A712105210
Product Information
Product Information
Coolant Hose. 
Keep your engine operating at the right temperature with this genuine coolant hose — a direct OEM replacement engineered for reliability and long-lasting performance. Designed specifically for select Porsche 95B.2 Macan / 971.1 / 971.2 / 976 Panamera / 9YA / 9YA.2 Cayenne models, this hose plays a vital role in your vehicle’s cooling system by circulating coolant and supporting efficient heat transfer.

Fits:
  • Porsche 9YA Cayenne V6 3.0L Petrol (340Hp) 2018-23
  • Porsche 9YA Cayenne Coupe V6 3.0L Petrol (340Hp) 2019-23
  • Porsche 9YA Cayenne E-Hybrid V6 3.0L V6 (340Hp) 2018-23
  • Porsche 9YA Cayenne Coupe E-Hybrid V6 3.0L (340Hp) 2020-23
  • Porsche 9YA Cayenne S V6 2.9L Petrol (440Hp) 2018-23
  • Porsche 9YA Cayenne Coupe S V6 2.9L Petrol (440Hp) 2019-23
  • Porsche 9YA.2 Cayenne V6 3.0L Petrol (353Hp) 2023>>
  • Porsche 9YA.2 Cayenne Coupe V6 3.0L (353Hp) 2023>>
  • Porsche 9YA.2 Cayenne E-Hybrid V6 3.0L (470Hp) 2023>>
  • Porsche 9YA.2 Cayenne E-Hybrid Coupe V6 3.0L (470Hp) 2023>>
  • Porsche 9YA.2 Cayenne S E-Hybrid V6 3.0L (519Hp) 2023>>
  • Porsche 9YA.2 Cayenne S E-Hybrid Coupe V6 3.0L (519Hp) 2023>>
  • Porsche 971.1 Panamera V6 3.0L 2WD (330 Hp) 2017-20
  • Porsche 971.1 Panamera 4 V6 3.0L 4WD (330 Hp) 2017-20
  • Porsche 971.1 Panamera 4 V6 3.0L 4WD Executive 2017-20
  • Porsche 971.1 Panamera 4 3.0L Turbocharged V6 Sport Turismo 2017-20
  • Porsche 971.1 Panamera 4S V6 3.0L 4WD (440 Hp) 2017-20
  • Porsche 971.1 Panamera 4S V6 3.0L 4WD Executive 2017-20
  • Porsche 971.1 Panamera 4S 2.9L Twin-Turbo V6 Sport Turismo 2017-20
  • Porsche 971.1 Panamera 4 E-Hybrid V6 2.9L 4WD 2017-20
  • Porsche 971.1 Panamera 4 E-Hybrid V6 2.9L 4WD Executive 2017-20
  • Porsche 971.1 Panamera 4 E-Hybrid 2.9L Twin-Turbo V6 Sport Turismo 2017-20
  • Porsche 971.2 Panamera 2.9L V6 2021-23
  • Porsche 971.2 Panamera 4 2.9L V6 2021-23
  • Porsche 971.2 Panamera 4 Sport Turismo 2.9L V6 2021-23
  • Porsche 971.2 Panamera 4S 2.9L V6 2021-23
  • Porsche 971.2 Panamera 4S Sport Turismo 2.9L V6 2021-23
  • Porsche 971.2 Panamera 4 E-Hybrid 2.9L V6 2021-23
  • Porsche 971.2 Panamera 4 E-Hybrid Sport Turismo 2.9L V6 2021-23
  • Porsche 971.2 Panamera 4S E-Hybrid 2.9L V6 2021-23
  • Porsche 971.2 Panamera 4S E-Hybrid Sport Turismo 2.9L V6 2021-23
  • Porsche 976 Panamera V6 2.9L 2023>>
  • Porsche 976 Panamera 4 V6 2.9L 2023>>
  • Porsche 976 Panamera 4 E-Hybrid V6 2.9L 2023>>
  • Porsche 976 Panamera 4S E-Hybrid V6 2.9L 2023>>
  • Porsche 95B.2 Macan Petrol 2.0L (245Bhp) 2019-21
  • Porsche 95B.2 Macan S Petrol 3.0L V6 (354Bhp) 2019-21
  • Porsche 95B.2 Macan GTS Petrol 2.9L V6 (380Bhp) 2019-21
  • Porsche 95B.2 Macan Turbo 2.9L V6 (440Bhp) 2019-21  

Diagram Ref No 5

What This Product Does:

  • Transfers coolant (antifreeze) between engine components
  • Regulates engine temperature by maintaining proper coolant flow
  • Prevents overheating by helping move heat away from the engine
  • Supports cabin heating by routing warm coolant to the heater core

Symptoms Of Wear Or Failure:
  • Coolant leaks or visible fluid under the vehicle
  • Engine overheating or rising temperature gauge
  • Low coolant warning light or frequent coolant top-offs
  • Sweet coolant smell from the engine bay
  • Steam coming from under the hood
  • Weak or no cabin heat
  • Cracks, swelling, or soft/brittle hose material
  • Coolant residue or dampness around hose connections

Why Replacement Matters:
Replacing a worn coolant hose is essential to maintaining proper engine cooling and preventing costly damage. A failing hose can lead to coolant leaks, overheating, and reduced heater performance. If left unaddressed, it may cause severe engine overheating, which can result in serious repairs such as head gasket failure or engine damage. Installing a new hose helps ensure reliable coolant circulation, stable engine temperature, and long-term vehicle performance.  



Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

9A712105210
9A712105210

The product you are viewing cross references to these numbers
Breather Line. Porsche 971.1 / 971.2 Panamera / 9YA Cayenne 2.9L / 3.0L 2017-24 - 9A712169201
2
Breather Line. Porsche 971.1 / 971.2 Panamera / 9YA Cayenne 2.9L / 3.0L 2017-24
Special Order item
9A712169201
Product Information
Product Information
Breather Line.
The Breather Line is a genuine Porsche OEM coolant vent tube designed to manage air, vapour, and overflow flow within the engine cooling system. This breather line connects key cooling circuit components to help regulate pressure changes and maintain proper coolant circulation, supporting stable engine operating temperatures and efficient cooling performance. Manufactured to Porsche specifications, it provides precise fitment, secure sealing, and long-term resistance to heat and coolant exposure. Designed for Porsche models 971.1 / 971.2 / 9YA, this breather line is essential for maintaining cooling system reliability and preventing pressure-related coolant issues.

Fits:
  • Porsche 9YA Cayenne V6 3.0L Petrol (340Hp) 2018-23
  • Porsche 9YA Cayenne Coupe V6 3.0L Petrol (340Hp) 2019-23
  • Porsche 9YA Cayenne E-Hybrid V6 3.0L V6 (340Hp) 2018-23
  • Porsche 9YA Cayenne Coupe E-Hybrid V6 3.0L (340Hp) 2020-23
  • Porsche 9YA Cayenne S V6 2.9L Petrol (440Hp) 2018-23
  • Porsche 9YA Cayenne Coupe S V6 2.9L Petrol (440Hp) 2019-23
  • Porsche 971.1 Panamera V6 3.0L 2WD (330 Hp) 2017-20
  • Porsche 971.1 Panamera 4 V6 3.0L 4WD (330 Hp) 2017-20
  • Porsche 971.1 Panamera 4 V6 3.0L 4WD Executive 2017-20
  • Porsche 971.1 Panamera 4 3.0L Turbocharged V6 Sport Turismo 2017-20
  • Porsche 971.1 Panamera 4S V6 3.0L 4WD (440 Hp) 2017-20
  • Porsche 971.1 Panamera 4S V6 3.0L 4WD Executive 2017-20
  • Porsche 971.1 Panamera 4S 2.9L Twin-Turbo V6 Sport Turismo 2017-20
  • Porsche 971.1 Panamera 4 E-Hybrid V6 2.9L 4WD 2017-20
  • Porsche 971.1 Panamera 4 E-Hybrid V6 2.9L 4WD Executive 2017-20
  • Porsche 971.1 Panamera 4 E-Hybrid 2.9L Twin-Turbo V6 Sport Turismo 2017-20
  • Porsche 971.2 Panamera 2.9L V6 2021-23
  • Porsche 971.2 Panamera 4 2.9L V6 2021-23
  • Porsche 971.2 Panamera 4 Sport Turismo 2.9L V6 2021-23
  • Porsche 971.2 Panamera 4S 2.9L V6 2021-23
  • Porsche 971.2 Panamera 4S Sport Turismo 2.9L V6 2021-23
  • Porsche 971.2 Panamera 4 E-Hybrid 2.9L V6 2021-23
  • Porsche 971.2 Panamera 4 E-Hybrid Sport Turismo 2.9L V6 2021-23
  • Porsche 971.2 Panamera 4S E-Hybrid 2.9L V6 2021-23
  • Porsche 971.2 Panamera 4S E-Hybrid Sport Turismo 2.9L V6 2021-23  

Diagram Ref No 23

What This Product Does:

  • Vents trapped air and coolant vapour from the cooling system.
  • Helps regulate cooling system pressure as temperatures rise and fall.
  • Routes overflow coolant between the expansion tank and the main cooling loop.
  • Prevents air pockets that could reduce coolant circulation and cooling efficiency.

Symptoms Of Wear Or Failure:
  • Cracks or loose fittings may cause coolant seepage near the vent line or expansion tank area.
  • A leaking breather line can gradually reduce coolant levels, requiring frequent top-ups.
  • If the line cannot vent properly, excess pressure may build up in the cooling system.
  • Low coolant or overheating warnings may appear if leakage or pressure issues develop.
  • A noticeable coolant odor in the engine bay often indicates leakage from the vent line.
  • Common signs include cracking or splitting, brittle or hardened material, damaged connectors, coolant residue buildup.
  • Air entering the cooling system or improper venting can reduce cooling efficiency.

Why Replacement Matters:
  • Prevents coolant leaks that can lead to low coolant levels and reduced cooling performance.
  • Maintains correct venting, allowing air and vapour to escape and preventing pressure buildup.
  • Helps avoid engine overheating, since trapped air or coolant loss can disrupt circulation.
  • Prevents air pockets in the cooling system, improving heat transfer efficiency.
  • Protects surrounding components, as coolant leaks can damage wiring, sensors, and nearby engine parts.



Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

9A712169201
9A712169201

The product you are viewing cross references to these numbers
Additional center coolant radiator. Porsche 9YA Cayenne 3.0L / 4.0L Hybrid 2018>> - PAB145804
2
Additional center coolant radiator. Porsche 9YA Cayenne 3.0L / 4.0L Hybrid 2018>>
Special Order item
PAB145804
Product Information
Product Information
Additional center coolant radiator
The Porsche Genuine OE Additional Center Coolant Radiator (PAB145804) is a specific auxiliary cooling component designed to manage excess heat in hybrid-assisted Cayenne 9YA models. It enhances the ability of the cooling system to regulate coolant temperature during heavy engine load or hybrid system operation - contributing to efficient engine performance and longevity through improved thermal management.

Fits:
Porsche 9YA (E3) Cayenne 3.0L  / 4.0L Hybrid  2018 - 2024
Porsche 9YA.2 (E3 PA) Cayenne 3.0L Hybrid 2023 >>

Diagram ref no 1


This additional center coolant radiator functions as a supplementary heat exchanger in the engine’s cooling system. It helps dissipate excess heat from the engine coolant, reducing overall operating temperature and relieving load on the primary radiator - particularly under higher thermal loads seen in hybrid-assisted or high-performance operation. By improving coolant temperature control, it supports optimal combustion efficiency, long-term durability, and consistent engine performance.

Applications
•  Cooling system repair: Replace a damaged or failed auxiliary radiator component
•  Performance reliability: Add or restore cooling capacity to support hybrid engine thermal loads
•  Factory-standard restoration: Use when rebuilding or fully servicing cooling circuits
•  Preventative maintenance: Install as part of coolant system servicing for consistent temperature control

Fitment / Position on Car
•  Installed on: Engine bay, mounted centrally as part of the coolant heat-exchange system
•  Location: Integrated with front cooling network alongside main radiator cores and intercoolers
•  Connection: Works within the standard coolant piping and hose routing for the Cayenne 9YA hybrid platform

Modern performance and hybrid engines, such as those found in the Cayenne 9YA, generate additional heat due to electric motor assist, turbocharging, and high output demands. An auxiliary radiator increases total cooling surface area, helping prevent overheating, reduce thermal stress on primary components, and maintain consistent performance both in everyday driving and demanding conditions. Choosing a genuine Porsche OE cooling radiator means getting the exact specification, durability, and fitment that Porsche engineers designed for your vehicle’s thermal system

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

PAB145804
PAB145804

The product you are viewing cross references to these numbers
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