Replacement RC31960002 Upper Thermostat Housing Assembly 4-Cylinder 1.4L Engine

The Replacement RC31960002 is an upper engine coolant thermostat housing assembly designed as a direct OEM-quality replacement for 4-cylinder 1.4L turbocharged engines. This housing is a critical component of the engine cooling system, serving as the central junction point that holds the thermostat and integrates the coolant temperature sensor to regulate engine operating temperature.

The thermostat housing controls coolant flow to the radiator, keeping the engine at its optimal operating temperature. A failed or cracked housing can result in coolant leaks, engine overheating, and diagnostic trouble codes such as P0128, P0597, P0598, or P0599. This assembly is a complete replacement unit that restores proper cooling system function.

What's Included:

• Thermostat housing assembly
• Integrated coolant temperature sensor
• Thermostat (103°C / 217.4°F opening temperature)
• Gasket / seal

Key Features:

• Direct OEM-style replacement — no modification required for installation
• Thermostat opening temperature: 103°C (217.4°F)
• 3-point mounting bolt configuration
• Integrated coolant temperature sensor
• Replaces OEM part number 55593034
• Cross-references: 55565336, 55579010, 25200455, 902-808, 730-221

Installation requires basic hand tools including an E10 external Torx socket. This is a DIY-friendly repair for those with intermediate mechanical experience.