Coolant / Heater pipe, for Left Hand Drive (LHD). Porsche 928 1978-95  ❭  92857410603

Coolant / Heater pipe, for Left Hand Drive only
The Genuine Porsche 92857410603 coolant / heater pipe is an OE cooling and heater system pipe for Left Hand Drive Porsche 928 1978–1995 models. It helps route coolant through the heater circuit, supporting correct cabin heater operation and cooling system function. Ideal for replacing a leaking, corroded or damaged original pipe while maintaining Genuine Porsche fitment and quality.

Fits:
for LHD (Left hand drive) cars only 
Porsche 928 1978 - 1995

Diagram ref no 5

The coolant / heater pipe carries engine coolant through the heater circuit, allowing hot coolant to flow to the heater system for cabin heating and demisting. A correctly fitted pipe helps maintain coolant flow, system pressure, and heating performance while preventing leaks from aged or corroded pipework.

Functions
•  Replaces the coolant / heater pipe
•  Designed for Left Hand Drive vehicles
•  Routes coolant through the heater circuit
•  Supports cabin heater and demister operation
•  Helps maintain cooling system pressure and circulation
•  Helps prevent coolant leaks from worn or corroded pipework
•  Suitable for heater system service, coolant leak repair, or restoration
•  OE Match replacement for Porsche 928 heating and cooling system maintenance.

Why Replace This Part?
Coolant and heater pipes can corrode, crack, block, leak, or become damaged due to age, coolant exposure, heat cycles, pressure, and long-term use. A worn pipe may cause coolant loss, poor heater performance, coolant smell, dampness, pressure loss, or overheating symptoms. Replacing the pipe helps restore reliable coolant flow and heater system operation.

When to Replace This Part
•  Coolant leak is visible from the heater pipe area
•  Pipe is corroded, cracked, damaged, or blocked
•  Heater output is poor or inconsistent
•  Coolant smell or residue is present
•  Cooling system pressure loss is detected
•  Heater system or cooling system service is being carried out
•  Vehicle is undergoing Porsche 928 restoration or preventive maintenance

Where it fits on the car
This pipe fits within the coolant / heater circuit on Left Hand Drive Porsche 928 models. It forms part of the coolant routing between the engine cooling system and the cabin heater system.

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Related, superseded, cross reference or alternative numbers for comparison.

92857410603

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