Dorman 902-033 Engine Coolant Thermostat Housing Assembly

Metal Thermostat Housing for GM Cooling Repair

Dorman 902-033 is an engine coolant thermostat housing assembly built to replace weak plastic OE housings with a metal design. It includes the thermostat housing with cover and thermostat-related components for direct service on select Chevrolet models, including Cruze, Cruze Limited, Sonic, and Trax.

For Chevrolet Cruze and Chevrolet Sonic cooling system repairs, this OE FIX housing helps address common housing failure points while maintaining the original fit and function. Part number 902-033 is built around the housing assembly and sealing components needed for a proper coolant system repair.

Key Features

• Metal construction helps resist warping compared with plastic housings
• Engine coolant thermostat housing assembly with integrated cover design
• Rubber gasket and O-ring included for sealing
• Natural finish
• 4 mounting holes and 4 outlet ports
• No bleeder hole
• Package contents include thermostat housing, thermostat housing with sensor, thermostat, temp sensor, gasket, and O-ring
• Cross-references Monroe Shocks & Struts 902033 for the same application

Detailed Description

Dorman 902-033 is an OE-style replacement thermostat housing assembly engineered for select 2010-2020 Chevrolet Cruze, 2012-2018 Chevrolet Sonic, 2013-2020 Chevrolet Trax, and 2016 Chevrolet Cruze Limited applications. The metal housing is a practical upgrade over original plastic units that can crack, distort, or leak as heat cycles build up over time. With the thermostat housing, thermostat, temp sensor, gasket, and O-ring included, this assembly supports a complete cooling system service at the housing location.

This part number 902-033 is a direct-fit solution for drivers and technicians searching for a Chevrolet Cruze thermostat housing assembly, Chevrolet Sonic coolant thermostat housing, or Chevrolet Trax engine coolant thermostat housing replacement. It is built with a regular-grade metal body, 2.25 flange thickness, 2.125 flange length, and 2.25 flange width for the listed applications.

Common Problems This Part Can Address

• Coolant leaks from a cracked or warped thermostat housing
• Overheating caused by housing seal failure
• Temperature sensor issues at the housing assembly
• Repeated failures from plastic housing distortion
• Coolant loss around the thermostat mounting area

Installation Notes and Tips

Drain the cooling system before removal and inspect the mating surfaces for corrosion or residue. Replace worn hoses and clamps if needed, and verify the gasket and O-ring are seated correctly before refilling. After installation, bleed the cooling system according to the vehicle service procedure and check for leaks at operating temperature.

Quality Assurance

Dorman OE FIX parts are developed to address known failure points in original equipment designs. This metal thermostat housing assembly is built as a replacement for the listed Chevrolet applications and is intended to restore proper coolant routing and sealing at the housing.