Thermostat. Porsche 928 1978-95  ❭  92810612917

Thermostat.

This Wahler Thermostat is a Porsche 928 cooling system component designed to regulate engine coolant flow and maintain the correct operating temperature. Installed within the cooling circuit, the thermostat automatically opens and closes according to coolant temperature, ensuring efficient engine warm-up and stable cooling performance under all driving conditions.

Fits:

• Porsche 928 4.5L 1978-82
• Porsche 928S 4.7L 1981-83
• Porsche 928S2 4.7L 1984-86
• Porsche 928S4 5.0L 1987-92
• Porsche 928GT 5.0L 1989-91
• Porsche 928GTS 5.4L 1992-95

Diagram Ref No 21

What This Product Does:

• Regulates coolant circulation through the engine and radiator
• Maintains optimal engine operating temperature
• Controls engine warm-up and cooling efficiency
• Helps prevent overheating or overcooling
• Supports fuel efficiency, emissions control, and engine performance

Symptoms Of Wear Or Failure:

• Engine overheating
• Engine running too cool or taking excessive time to warm up
• Fluctuating temperature gauge readings
• Poor cabin heater performance
• Coolant leaks around the thermostat housing
• Reduced fuel efficiency due to incorrect operating temperature
• Check engine warning light related to cooling system faults  

Why Replacement Matters:

• Restores proper coolant flow and temperature regulation
• Prevents overheating and potential engine damage
• Improves engine efficiency and fuel economy
• Ensures reliable heater and climate control operation
• Protects cooling system components from excessive wear and stress
• Maintains long-term engine performance and reliability

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92810612917

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