Water Coolant Hose, Top. Porsche 944S / 944S2  ❭  94410623906

Radiator coolant bottom hose
This Radiator Coolant Bottom Hose is a precision-engineered OE Match return coolant hose designed to replace the original lower radiator hose on Porsche 95B.1 Macan S, GTS, and Turbo models. It carries cooled engine coolant from the radiator back to the engine - completing the core cooling loop.

Fits:
Porsche 95B.1 Macan S 3.0L Petrol 2014 - 2018
Porsche 95B.1 Macan GTS  3.0L 2014 - 2018
Porsche 95B.1 Macan turbo 3.6L 2014 - 2018

Diagram ref no 24

The Macan’s turbocharged engines require reliable coolant circulation to maintain ideal temperatures under all driving conditions. The bottom radiator hose (also known as the return hose) plays a crucial role in transporting coolant after it has been cooled in the radiator. It must withstand heat, pressure, vibration, and continual flexing without cracking, softening, or leaking.

This OE Match hose is manufactured to match the original Porsche specification for:
• Internal diameter and flow capacity
• Bend radii and routing paths
• Wall thickness and thermal resistance
•  Corrosion-resistant specimen materials.

The hose is made from high-grade EPDM rubber with reinforcement layers to ensure long-lasting durability and resistance to pressure spikes and coolant exposure. Designed for direct replacement of the original Porsche part, it installs easily into the factory routing and seals.

The radiator return hose is exposed to hot coolant, pressure cycling, and engine bay movement. Over time, the hose can deteriorate - causing coolant leaks, reduced flow, and elevated engine temperatures. A compromised return hose increases the risk of engine overheating, reduced heater output, and potential engine damage under sustained load. Replacing a worn or aged hose with an OE Match radiator bottom hose helps ensure the cooling system functions properly, protects internal components, and preserves performance and reliability.

Replace this hose if you observe:
•  Visible cracks, soft spots, or swelling
•  Coolant leakage at hose ends or body
•  Overheating or fluctuating temperature gauge readings
•  Hardened, brittle, or collapsed hose material
•  During water pump, thermostat, or radiator servicing
•  Preventative maintenance on high-mile vehicles

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Related, superseded, cross reference or alternative numbers for comparison.

95B121109E

The product you are viewing cross references to these numbers

Radiator coolant bottom hose. 

Fits:
Porsche 95B.1 Macan S Petrol - 2014 to 2018
Porsche 95B.1 Macan GTS  - 2014 to 2018
Porsche 95B.1 Macan turbo - 2014 to 2018

Click 'Zoom in' for large parts diagram.
Diagram ref no 24

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

95B121109E

The product you are viewing cross references to these numbers

Water coolant top hose, feed. 



Fits:
Porsche 95B.1 Macan S - 2014 to 2018
Porsche 95B.1 Macan GTS - 2014 to 2018
Porsche 95B.1 turbo - 2014 to 2018

Click 'Zoom in' for large parts diagram.
Diagram ref no 35

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

95B122101D

The product you are viewing cross references to these numbers