Coolant Pipe, Return. Porsche 958 Cayenne / 95B Macan / 970 Panamera 2010-18  ❭  94610642160

The Coolant Pipe, Return is a OE MATCH coolant pipe designed to carry returning coolant through the engine cooling system. This rigid return pipe helps complete the coolant circulation loop, ensuring stable engine temperatures and reliable heater operation. Engineered to Porsche specifications, it provides precise fitment and long-term durability and is used on various Porsche models.

Fits:

• Porsche 958 Cayenne V6 3.6L Petrol 300Hp 2010-17
• Porsche 970.2 Panamera S V6 Turbo 3.0L 2WD (420Hp) 2014-16
• Porsche 970.2 Panamera S V6 Turbo 3.0L 2WD Executive 2014-16
• Porsche 95B.1 Macan S Petrol 3.0L V6 340Bhp 2014-18
• Porsche 95B.1 Macan S Diesel 3.0L V6 258Bhp 2014-18
• Porsche 95B.1 Macan GTS Petrol 3.0L V6 360Bhp 2014-18
• Porsche 95B.1 Macan Turbo 3.6L V6 400Bhp 2014-18

• Returns coolant flow through the cooling system to complete the circulation loop.
  
• Helps maintain proper engine temperature control by ensuring coolant moves continuously through the system.
  
• Supports the heater circuit, since consistent coolant circulation is required for the heater core to deliver warm air.
  
• Provides a rigid, secure coolant pathway, reducing the risk of kinking or collapse compared to flexible hoses.
  
  

• Coolant may seep or drip from the pipe itself or from the connection points where hoses attach.
• A failing return pipe can cause slow coolant loss, leading to repeated top-ups.
• Leaks or restrictions in the return circuit can reduce coolant circulation and cause the engine temperature to rise.
• A coolant leak from the pipe often produces a noticeable sweet smell in the engine bay.
• Because it is a rigid pipe, failure often shows as corrosion/rust (external), cracking, weakened metal near joints or mounting points
  
• If coolant flow is reduced, the heater core may not receive enough hot coolant, resulting in weak or inconsistent cabin heat.
• Modern Porsche models may trigger coolant level or overheating warnings if the pipe begins leaking.

• Prevents coolant loss and leaks that can quickly lead to low coolant levels and system pressure loss.
  
• Helps avoid engine overheating, which can cause severe and costly engine damage if coolant can’t circulate properly.
  
• Restores proper coolant flow, ensuring the cooling system works as designed under all driving conditions.
  
• Maintains reliable cabin heating, since steady coolant circulation is required for the heater core to function correctly.
  
• Protects surrounding components, as leaking coolant can damage hoses, seals, sensors, and nearby engine parts.