Water pump thermostat. Porsche 924S / 944  ❭  94410612905

Thermostat on water pump large
This OE Match water pump thermostat is a replacement cooling system thermostat for Porsche 924S and 944 models. It is designed to match the original-style fitment and function, helping regulate coolant flow and maintain the correct engine operating temperature.

Fits:
Porsche 924S 1986 - 1988
Porsche 944 1982 - 1988

Diagram Ref No 3.

The thermostat controls coolant flow through the engine cooling system. When the engine is cold, it helps restrict coolant circulation so the engine can warm up efficiently. Once the correct temperature is reached, it opens to allow coolant to circulate through the radiator and cooling system.

Functions
•  Replaces the water pump thermostat
•  Helps regulate engine coolant flow
•  Supports correct engine warm-up and operating temperature
•  Helps maintain cooling system efficiency
•  Helps prevent overheating or overcooling issues
•  Replaces stuck, leaking, slow-opening, or failed original thermostats
•  OE Match replacement for Porsche 924S and 944 cooling system service.

Why Replace This Part?
Thermostats can fail due to age, coolant contamination, corrosion, sticking, worn seals, or repeated heat cycles. A faulty thermostat may stay closed and cause overheating, or stay open and prevent the engine from reaching the correct operating temperature. Replacing the thermostat helps restore reliable temperature control and protects the engine cooling system.

When to Replace This Part
•   The engine overheats or runs hotter than normal
•   The engine takes too long to warm up
•   Coolant temperature fluctuates or remains too low
•   The thermostat is stuck open or closed
•   The water pump or cooling system is being serviced
•   Coolant has become contaminated or the system is being flushed
•   Preventative replacement is being carried out during major service.

Where it fits on the car
This thermostat fits within the water pump / engine cooling system on Porsche 924S and 944 models. It controls coolant flow according to the factory cooling system layout. Applications / F

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Related, superseded, cross reference or alternative numbers for comparison.

94410612905

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