Dorman 902-2117 Engine Coolant Thermostat Housing Assembly - Water Pump

Engine Coolant Thermostat Housing Assembly

Dorman 902-2117 is a replacement engine coolant thermostat housing assembly built for specified vehicles with a metal housing, integrated thermostat, and sensor. It is engineered to match the fit and durability of the original housing while handling repeated temperature swings in the cooling system.

Fits 2016-2018 Chevrolet Volt, Water Pump. This Dorman thermostat housing assembly is a direct-fit cooling system service part for the Chevrolet Volt application listed below.

Key Features

• Metal housing with a natural finish
• Includes 1 thermostat housing, 1 thermostat, and 1 sensor
• Thermostat opening temperature: 206 degrees F
• 1 outlet port and 2 mounting holes
• Gasket type: gasket
• Designed for the water pump location on the listed application
• Dorman part number 902-2117 for easy identification

Detailed Description

This thermostat housing assembly is built for 2016-2018 Chevrolet Volt models at the water pump position and is shaped to match the stock housing assembly on the listed application. The metal construction helps the housing stand up to heat cycling and coolant exposure, while the integrated thermostat and sensor simplify replacement of the cooling system service components in one assembly. Dorman 902-2117 is a practical OE-style replacement for drivers servicing a Chevrolet Volt cooling system leak, thermostat fault, or housing damage.

This part cross-references OE number 12635761 and Motorad 864-206 for the same application.

Common Issues This Part Can Address

• Coolant leaks from a cracked or warped thermostat housing
• Engine temperature fluctuations caused by a failing thermostat
• Cooling system warning lights related to thermostat or sensor concerns
• Damaged housing threads or mounting surfaces
• Service needs at the water pump thermostat housing location

Installation Notes and Tips

Confirm the vehicle is a 2016-2018 Chevrolet Volt with the water pump-mounted thermostat housing before ordering. Transfer or replace the gasket as required for the repair, and inspect the mating surfaces, coolant condition, and nearby hoses before installation. Because mounting hardware is not included, reuse or source the correct fasteners separately if needed. After installation, refill and bleed the cooling system according to the vehicle service procedure.

Quality Assurance

Dorman designs this replacement thermostat housing assembly to match the fit and durability of the original part on the specified application and to withstand extreme temperature changes for extended service life.