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Water / Coolant Pumps

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DISPLAYING 1 to 6 (of 6 products)
WATERPUMP.991.6.GEB
Product Information
Product Information

Complete Water Pump Kit – Water Pump with Housing, Thermostat, Serpentine Belt & Gaskets for a Full Cooling System Refresh
This complete water pump kit includes a new water pump, thermostat, drive (serpentine) belt and the required gaskets for both the pump and thermostat housing.

Fits:
Porsche 991.2 Carrera 3.0L 2017>> Engine MDC.KA - Cars without sport chassis
Porsche 992 Carrera / 992 S and GTS from 15.06.20 - Cars without PDCC         

  • Porsche 991.2 Carrera 2 3.0L (370 Bhp) 2016-19
  • Porsche 991.2 Carrera 4 3.0L (370 Bhp) 2016-19
  • Porsche 991.2 Cabriolet 2 3.0L (370 Bhp) 2016-19
  • Porsche 991.2 Cabriolet 4 3.0L (370 Bhp) 2016-19
  • Porsche 991.2 Targa 4 3.0L (370 Bhp) 2016-19
  • Porsche 992.1 Carrera 2 3.0L 2019-24
  • Porsche 992.1 Carrera 4 3.0L 2019-24
  • Porsche 992.1 Carrera 2 Cabriolet 3.0L 2019-24
  • Porsche 992.1 Carrera 4 Cabriolet 3.0L 2019-24
  • Porsche 992.1 Carrera 2S / GTS 3.0L 2019-24
  • Porsche 992.1 Carrera 4S / GTS 3.0L 2019-24
  • Porsche 992.1 Carrera 2S / GTS Cabriolet 3.0L 2019-24
  • Porsche 992.1 Carrera 4S / GTS Cabriolet 3.0L 2019-24
  • Porsche 992.2 Carrera 2 3.0L 2024>>
  • Porsche 992.2 Carrera 2 3.0L Cabriolet 2024>>

Designed as a comprehensive cooling system service package, it ensures correct coolant circulation, accurate temperature regulation, and reliable accessory belt operation. Ideal for preventative maintenance or full cooling system repair, this kit provides everything needed to restore confidence in your Porsche’s engine cooling performance.

The water pump continuously circulates coolant through the engine and radiators, while the thermostat regulates operating temperature and ensures the engine warms up properly. The serpentine belt drives essential accessories—including the water pump—so replacing all these components together ensures long-term reliability and prevents future breakdowns.

What This Complete Water Pump Kit Does

This cooling system service kit:

  • Replaces the water pump to restore proper coolant flow
  • Includes a new thermostat for accurate temperature control
  • Supplies a fresh serpentine belt to ensure reliable accessory drive operation
  • Comes with all required gaskets to prevent leaks during installation
  • Improves cooling efficiency, reducing the risk of overheating
  • Ensures long-term reliability with coordinated component replacement
  • Perfect for workshop servicing, DIY maintenance or high-mileage cooling system refreshes.

Why Water Pumps, Thermostats & Belts Fail

Common failure points include:

  • Bearing wear inside the water pump, causing leaks or noise
  • Impeller degradation, reducing coolant flow
  • Thermostat sticking, leading to overheating or overcooling
  • Serpentine belt cracking, glazing or stretching
  • Coolant contamination, accelerating component wear
  • Heat cycling, which weakens gaskets and housings

Cooling failures can cause warped cylinder heads, engine misfires or complete engine failure if not addressed promptly.

Why These Components Should Be Replaced Together

Replacing the pump, thermostat and serpentine belt as a set ensures:

  • Restored cooling performance across the entire system
  • Correct belt tension and accessory drive function
  • Reduced labour costs by avoiding repeat disassembly
  • Balanced longevity, as all components age similarly
  • Prevention of leaks, thanks to new gaskets and seals
  • Peace of mind for daily driving, long trips or track use

This kit offers the most reliable and cost-effective approach to cooling system maintenance.



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

WATERPUMP.991.6.GEB
9A712168800
0PB121688
9A110655900
9A110622603
9A110622602
9A712111000
0PB121110A
0PB903137A
9A110221800
0PB903137G
0PB121010D
0PB121010
0PB121010A
9A210603974
9A210603973
9A210603972
9A210603971
9A210603970

The product you are viewing cross references to these numbers
WATERPUMP.991.3.GEB
Product Information
Product Information

Complete Water Pump Kit – Water Pump, Thermostat, Serpentine Belt & Gaskets for a Full Cooling System Refresh
This complete water pump kit includes a new water pump, thermostat, drive (serpentine) belt and the required gaskets for both the pump and thermostat housing.

Fits:
Porsche 991.2 Carrera 3.0L 2017>> Engine MDC.KA - Cars without sport chassis
Porsche 992 Carrera / 992 S and GTS from 15.06.20 - Cars without PDCC         

  • Porsche 991.2 Carrera 2 3.0L (370 Bhp) 2016-19
  • Porsche 991.2 Carrera 4 3.0L (370 Bhp) 2016-19
  • Porsche 991.2 Cabriolet 2 3.0L (370 Bhp) 2016-19
  • Porsche 991.2 Cabriolet 4 3.0L (370 Bhp) 2016-19
  • Porsche 991.2 Targa 4 3.0L (370 Bhp) 2016-19
  • Porsche 992.1 Carrera 2 3.0L 2019-24
  • Porsche 992.1 Carrera 4 3.0L 2019-24
  • Porsche 992.1 Carrera 2 Cabriolet 3.0L 2019-24
  • Porsche 992.1 Carrera 4 Cabriolet 3.0L 2019-24
  • Porsche 992.1 Carrera 2S / GTS 3.0L 2019-24
  • Porsche 992.1 Carrera 4S / GTS 3.0L 2019-24
  • Porsche 992.1 Carrera 2S / GTS Cabriolet 3.0L 2019-24
  • Porsche 992.1 Carrera 4S / GTS Cabriolet 3.0L 2019-24
  • Porsche 992.2 Carrera 2 3.0L 2024>>
  • Porsche 992.2 Carrera 2 3.0L Cabriolet 2024>>

Designed as a comprehensive cooling system service package, it ensures correct coolant circulation, accurate temperature regulation, and reliable accessory belt operation. Ideal for preventative maintenance or full cooling system repair, this kit provides everything needed to restore confidence in your Porsche’s engine cooling performance.

The water pump continuously circulates coolant through the engine and radiators, while the thermostat regulates operating temperature and ensures the engine warms up properly. The serpentine belt drives essential accessories—including the water pump—so replacing all these components together ensures long-term reliability and prevents future breakdowns.

What This Complete Water Pump Kit Does

This cooling system service kit:

  • Replaces the water pump to restore proper coolant flow
  • Includes a new thermostat for accurate temperature control
  • Supplies a fresh serpentine belt to ensure reliable accessory drive operation
  • Comes with all required gaskets to prevent leaks during installation
  • Improves cooling efficiency, reducing the risk of overheating
  • Ensures long-term reliability with coordinated component replacement
  • Perfect for workshop servicing, DIY maintenance or high-mileage cooling system refreshes.

Why Water Pumps, Thermostats & Belts Fail

Common failure points include:

  • Bearing wear inside the water pump, causing leaks or noise
  • Impeller degradation, reducing coolant flow
  • Thermostat sticking, leading to overheating or overcooling
  • Serpentine belt cracking, glazing or stretching
  • Coolant contamination, accelerating component wear
  • Heat cycling, which weakens gaskets and housings

Cooling failures can cause warped cylinder heads, engine misfires or complete engine failure if not addressed promptly.

Why These Components Should Be Replaced Together

Replacing the pump, thermostat and serpentine belt as a set ensures:

  • Restored cooling performance across the entire system
  • Correct belt tension and accessory drive function
  • Reduced labour costs by avoiding repeat disassembly
  • Balanced longevity, as all components age similarly
  • Prevention of leaks, thanks to new gaskets and seals
  • Peace of mind for daily driving, long trips or track use

This kit offers the most reliable and cost-effective approach to cooling system maintenance.



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

WATERPUMP.991.3.GEB
9A210604902
0PB121005A
0PB121005C
0PB121005E
9A712168800
0PB121688
9A110655900
9A110622603
9A110622602
9A712111000
0PB121110A
0PB903137A
9A110221800
0PB903137G

The product you are viewing cross references to these numbers
Special Order item
0PB121010D
Product Information
Product Information
Water pump with gasket. Complete with pump housing and pulley.

Fits:

  • Porsche 991.2 Carrera 2 3.0L (370 Bhp) 2016-19
  • Porsche 991.2 Carrera 2S 3.0L (420 Bhp) 2016-19
  • Porsche 991.2 Carrera 4 3.0L (370 Bhp) 2016-19
  • Porsche 991.2 Carrera 4S 3.0L (420 Bhp) 2016-19
  • Porsche 991.2 Cabriolet 2 3.0L (370 Bhp) 2016-19
  • Porsche 991.2 Cabriolet 2S 3.0L (420 Bhp) 2016-19
  • Porsche 991.2 Cabriolet 4 3.0L (370 Bhp) 2016-19
  • Porsche 991.2 Cabriolet 4S 3.0L (420 Bhp) 2016-19
  • Porsche 991.2 Targa 4 3.0L (370 Bhp) 2016-19
  • Porsche 991.2 Targa 4S 3.0L (420 Bhp) 2016-19
  • Porsche 992.1 Carrera 2 3.0L 2019-24
  • Porsche 992.1 Carrera 4 3.0L 2019-24
  • Porsche 992.1 Carrera 2 Cabriolet 3.0L 2019-24
  • Porsche 992.1 Carrera 4 Cabriolet 3.0L 2019-24
  • Porsche 992.1 Carrera 2S / GTS 3.0L 2019-24
  • Porsche 992.1 Carrera 4S / GTS 3.0L 2019-24
  • Porsche 992.1 Carrera 2S / GTS Cabriolet 3.0L 2019-24
  • Porsche 992.1 Carrera 4S / GTS Cabriolet 3.0L 2019-24
  • Porsche 992.1 Targa 4 3.0L 2020-24
  • Porsche 992.1 Targa 4S / GTS 3.0L 2020-24
  • Porsche 992.1 Turbo 3.8L 2020-24
  • Porsche 992.1 Turbo S 3.8L 2020-24
  • Porsche 992.1 Turbo Cabriolet 3.8L 2020-24
  • Porsche 992.1 Turbo S Cabriolet 3.8L 2020-24
  • Porsche 992.2 Carrera 2 3.0L 2024>>
  • Porsche 992.2 Carrera 2 3.0L Cabriolet 2024>>


Diagram ref no 1

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

0PB121010D
0PB121010D
0PB121010
0PB121010A
9A210603974
9A210603973
9A210603972
9A210603971
9A210603970

The product you are viewing cross references to these numbers
0PB121010D/1
Product Information
Product Information
Water pump with gasket. Complete with pump housing and pulley.

Fits:
  • Porsche 991.2 Carrera 2 3.0L (370 Bhp) 2016-19
  • Porsche 991.2 Carrera 2S 3.0L (420 Bhp) 2016-19
  • Porsche 991.2 Carrera 4 3.0L (370 Bhp) 2016-19
  • Porsche 991.2 Carrera 4S 3.0L (420 Bhp) 2016-19
  • Porsche 991.2 Cabriolet 2 3.0L (370 Bhp) 2016-19
  • Porsche 991.2 Cabriolet 2S 3.0L (420 Bhp) 2016-19
  • Porsche 991.2 Cabriolet 4 3.0L (370 Bhp) 2016-19
  • Porsche 991.2 Cabriolet 4S 3.0L (420 Bhp) 2016-19
  • Porsche 991.2 Targa 4 3.0L (370 Bhp) 2016-19
  • Porsche 991.2 Targa 4S 3.0L (420 Bhp) 2016-19
  • Porsche 992.1 Carrera 2 3.0L 2019-24
  • Porsche 992.1 Carrera 4 3.0L 2019-24
  • Porsche 992.1 Carrera 2 Cabriolet 3.0L 2019-24
  • Porsche 992.1 Carrera 4 Cabriolet 3.0L 2019-24
  • Porsche 992.1 Carrera 2S / GTS 3.0L 2019-24
  • Porsche 992.1 Carrera 4S / GTS 3.0L 2019-24
  • Porsche 992.1 Carrera 2S / GTS Cabriolet 3.0L 2019-24
  • Porsche 992.1 Carrera 4S / GTS Cabriolet 3.0L 2019-24
  • Porsche 992.1 Targa 4 3.0L 2020-24
  • Porsche 992.1 Targa 4S / GTS 3.0L 2020-24
  • Porsche 992.1 Turbo 3.8L 2020-24
  • Porsche 992.1 Turbo S 3.8L 2020-24
  • Porsche 992.1 Turbo Cabriolet 3.8L 2020-24
  • Porsche 992.1 Turbo S Cabriolet 3.8L 2020-24
  • Porsche 992.2 Carrera 2 3.0L 2024>>
  • Porsche 992.2 Carrera 2 3.0L Cabriolet 2024>>
Diagram ref no 1

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

0PB121010D
0PB121010D
0PB121010
0PB121010A
9A210603974
9A210603973
9A210603972
9A210603971
9A210603970

The product you are viewing cross references to these numbers
Special Order item
0PB121005C
Product Information
Product Information
Water pump.

Fits:

  • Porsche 991.2 Carrera 2 3.0L (370 Bhp) 2016-19
  • Porsche 991.2 Carrera 2S 3.0L (420 Bhp) 2016-19
  • Porsche 991.2 Carrera 4 3.0L (370 Bhp) 2016-19
  • Porsche 991.2 Carrera 4S 3.0L (420 Bhp) 2016-19
  • Porsche 991.2 Cabriolet 2 3.0L (370 Bhp) 2016-19
  • Porsche 991.2 Cabriolet 2S 3.0L (420 Bhp) 2016-19
  • Porsche 991.2 Cabriolet 4 3.0L (370 Bhp) 2016-19
  • Porsche 991.2 Cabriolet 4S 3.0L (420 Bhp) 2016-19
  • Porsche 991.2 Targa 4 3.0L (370 Bhp) 2016-19
  • Porsche 991.2 Targa 4S 3.0L (420 Bhp) 2016-19
  • Porsche 992.1 Carrera 2 3.0L 2019-24
  • Porsche 992.1 Carrera 4 3.0L 2019-24
  • Porsche 992.1 Carrera 2 Cabriolet 3.0L 2019-24
  • Porsche 992.1 Carrera 4 Cabriolet 3.0L 2019-24
  • Porsche 992.1 Carrera 2S / GTS 3.0L 2019-24
  • Porsche 992.1 Carrera 4S / GTS 3.0L 2019-24
  • Porsche 992.1 Carrera 2S / GTS Cabriolet 3.0L 2019-24
  • Porsche 992.1 Carrera 4S / GTS Cabriolet 3.0L 2019-24
  • Porsche 992.1 Targa 4 3.0L 2020-24
  • Porsche 992.1 Targa 4S / GTS 3.0L 2020-24
  • Porsche 992.1 Turbo 3.8L 2020-22
  • Porsche 992.1 Turbo S 3.8L 2020-24
  • Porsche 992.1 Turbo Cabriolet 3.8L 2020-24
  • Porsche 992.1 Turbo S Cabriolet 3.8L 2020-24
  • Porsche 992.2 Carrera 2 3.0L 2024>>
  • Porsche 992.2 Carrera 2 3.0L Cabriolet 2024>>
Cars With Option Codes:
0K0 - Without Alternative Drive System

Diagram Ref No 2 (Diagram Ref No 3, 5, 17)


Click 'Zoom in' for large parts diagram.
Diagram ref no 37



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

0PB121005C
9A210604902
0PB121005A
0PB121005C
0PB121005E

The product you are viewing cross references to these numbers
0PB121005C/1
Product Information
Product Information
Water pump with gasket.

Fits:
  • Porsche 991.2 Carrera 2 3.0L (370 Bhp) 2016-19
  • Porsche 991.2 Carrera 2S 3.0L (420 Bhp) 2016-19
  • Porsche 991.2 Carrera 4 3.0L (370 Bhp) 2016-19
  • Porsche 991.2 Carrera 4S 3.0L (420 Bhp) 2016-19
  • Porsche 991.2 Cabriolet 2 3.0L (370 Bhp) 2016-19
  • Porsche 991.2 Cabriolet 2S 3.0L (420 Bhp) 2016-19
  • Porsche 991.2 Cabriolet 4 3.0L (370 Bhp) 2016-19
  • Porsche 991.2 Cabriolet 4S 3.0L (420 Bhp) 2016-19
  • Porsche 991.2 Targa 4 3.0L (370 Bhp) 2016-19
  • Porsche 991.2 Targa 4S 3.0L (420 Bhp) 2016-19
  • Porsche 992.1 Carrera 2 3.0L 2019-24
  • Porsche 992.1 Carrera 4 3.0L 2019-24
  • Porsche 992.1 Carrera 2 Cabriolet 3.0L 2019-24
  • Porsche 992.1 Carrera 4 Cabriolet 3.0L 2019-24
  • Porsche 992.1 Carrera 2S / GTS 3.0L 2019-24
  • Porsche 992.1 Carrera 4S / GTS 3.0L 2019-24
  • Porsche 992.1 Carrera 2S / GTS Cabriolet 3.0L 2019-24
  • Porsche 992.1 Carrera 4S / GTS Cabriolet 3.0L 2019-24
  • Porsche 992.1 Targa 4 3.0L 2020-24
  • Porsche 992.1 Targa 4S / GTS 3.0L 2020-24
  • Porsche 992.1 Turbo 3.8L 2020-22
  • Porsche 992.1 Turbo S 3.8L 2020-24
  • Porsche 992.1 Turbo Cabriolet 3.8L 2020-24
  • Porsche 992.1 Turbo S Cabriolet 3.8L 2020-24
  • Porsche 992.2 Carrera 2 3.0L 2024>>
  • Porsche 992.2 Carrera 2 3.0L Cabriolet 2024>>
Cars With Option Codes:
0K0 - Without Alternative Drive System


Diagram ref no 37



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

0PB121005C
9A210604902
0PB121005A
0PB121005C
0PB121005E

The product you are viewing cross references to these numbers
DISPLAYING 1 to 6 (of 6 products)
About Water / Coolant Pumps

Water / Coolant Pumps – Reliable Engine Cooling for Porsche Vehicles

Water / coolant pumps are at the heart of your Porsche’s cooling system. Their job is to circulate coolant through the engine, radiator, and heater core, maintaining the correct operating temperature and preventing overheating. A properly functioning water pump ensures efficient heat transfer, optimal performance, and long-term engine reliability.

At Design911, we supply a wide range of genuine and high-quality water pumps for Porsche models including 911, Boxster, Cayman, Cayenne, Macan, Panamera and the transaxle cars. Each pump is precision-engineered to deliver consistent coolant flow, high durability, and dependable performance - ensuring your Porsche’s engine stays cool under all driving conditions.

What Do Water Coolant Pumps Do?

Water pumps are a critical part of your engine’s temperature control system. They:

  • Circulate coolant between the engine block, radiator, and heater system.
  • Regulate temperature by dispersing heat efficiently throughout the system.
  • Maintain coolant pressure for consistent engine operation.
  • Support performance and longevity, preventing damage from excessive heat.

Without a properly working water pump, coolant circulation stops — leading to overheating, loss of performance, and potential engine failure.

Why Do Water Coolant Pumps Fail?

Even the most durable water pumps can fail over time due to heat, age, and coolant contamination. Common causes of failure include:

  • Bearing wear or seal leaks caused by prolonged use or poor coolant quality.
  • Corrosion or pitting from old or incompatible coolant mixtures.
  • Cracked impellers or worn components reducing flow efficiency.
  • Coolant leaks around the housing or pulley.
  • Age-related wear, especially in high-mileage vehicles.

Signs of failure include visible coolant leaks, high engine temperature, whining noises from the pump area, or reduced cabin heating.

Why Replace a Faulty Water Coolant Pump?

A failing water pump can cause severe engine overheating, loss of coolant, or total breakdown. Replacing a worn pump restores reliable cooling and helps protect your engine from costly damage.

Benefits of replacement include:

  • Restored coolant circulation and cooling efficiency.
  • Improved engine reliability and performance.
  • Prevention of leaks, overheating, and corrosion.
  • Long-lasting, high-quality construction for dependable operation.

All water pumps in this range are built using high-strength materials, precision impellers, and sealed bearings designed to deliver durability, quiet operation, and efficient coolant flow over time.


Porsche Water Pumps: Common Issues, Fixes, and Upgrades #porsche #porscheparts #porscheupgrade

In this tech talk, Lawrence from Design 911 breaks down everything you need to know about water pumps for Porsche models. From the iconic 911 to the Cayenne and Macan, discover why the water pump is one of the most crucial components in your car’s cooling system. 

Learn how water pumps work, the common signs of failure, and why regular replacement is essential to avoid catastrophic engine damage.

Whether you're maintaining your Porsche or considering a water pump upgrade, this video covers original and aftermarket options, as well as the pros and cons of plastic vs. metal impellers. Watch now to keep your Porsche running at its best!
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