Dorman 902-2700 Engine Coolant Thermostat Housing Assembly

Engine Coolant Thermostat Housing Assembly

Dorman 902-2700 is a replacement engine coolant thermostat housing assembly built to match the fit and durability of the original housing on specified vehicles. The aluminum housing is made to handle repeated temperature swings, while the included thermostat and O-ring help restore proper coolant control in one service.

Compatible With select 1997-2003 Chevrolet Corvette applications and other GM trucks, SUVs, and vans that use the same OE-style layout, this thermostat housing assembly supports reliable engine temperature regulation. It is a direct-fit cooling system repair for vehicles needing a thermostat housing replacement with a 180 degree Fahrenheit thermostat.

• Aluminum thermostat housing with natural finish
• Includes thermostat and O-ring for a complete cooling-system repair
• 180 degree Fahrenheit thermostat opening temperature
• 1 outlet port, 3 mounting holes, and OE-style flange dimensions
• Designed for specified Cadillac, Chevrolet, GMC, Hummer, and Pontiac applications

Fitment and Application Details

Fits 2002-2003 Cadillac Escalade, N/A; 2003 Cadillac Escalade ESV, N/A; 2002-2003 Cadillac Escalade EXT, N/A; 2002-2003 Chevrolet Avalanche 1500, N/A; 1997-2003 Chevrolet Corvette, N/A; 2003 Chevrolet Express 1500, N/A; 2003 Chevrolet Express 2500, N/A; 2003 Chevrolet Express 3500, N/A; 1999-2003 Chevrolet Silverado 1500, N/A; 2001-2003 Chevrolet Silverado 1500 HD, N/A; 1999-2003 Chevrolet Silverado 2500, N/A; 2001-2003 Chevrolet Silverado 2500 HD, N/A; 2001-2003 Chevrolet Silverado 3500, N/A; 2003 Chevrolet SSR, N/A; 2000-2003 Chevrolet Suburban 1500, N/A; 2000-2003 Chevrolet Suburban 2500, N/A; 2000-2003 Chevrolet Tahoe, N/A; 2003 Chevrolet Trailblazer EXT, N/A; 2003 GMC Envoy XL, N/A; 2003 GMC Savana 1500, N/A; 2003 GMC Savana 2500, N/A; 2003 GMC Savana 3500, N/A; 1999-2003 GMC Sierra 1500, N/A; 2001-2003 GMC Sierra 1500 HD, N/A; 1999-2003 GMC Sierra 2500, N/A; 2001-2003 GMC Sierra 2500 HD, N/A; 2001-2003 GMC Sierra 3500, N/A; 2000-2003 GMC Yukon, N/A; 2000-2003 GMC Yukon XL 1500, N/A; 2000-2003 GMC Yukon XL 2500, N/A; 2003 Hummer H2, N/A; 1998-2002 Chevrolet Camaro, N/A; 1998-2002 Pontiac Firebird, N/A.

What This Part Helps Fix

• Coolant leaks at the thermostat housing
• Cracked or warped original housing from heat cycling
• Engine temperature control issues caused by a worn thermostat
• Coolant seepage around the housing seal or O-ring
• Service problems on GM cooling systems using the OE-style housing design

Installation Notes and Quality Assurance

Use the existing vehicle-specific mounting points and verify the thermostat housing style, water pump casting number, and retainer bracket requirements before installation. The package includes the thermostat housing, thermostat, and O-ring; mounting hardware is not included. Dorman designs this replacement housing to match stock fit and durability for the listed applications, and the aluminum construction is selected to withstand extreme temperature changes for extended service life.

This part cross-references OE number 12571261 and Motorad 379-180 for the same application. Dorman 902-2700 is a practical choice for Chevrolet Corvette, Silverado, Tahoe, and related GM cooling system repairs.