Dorman 902-2063 Engine Coolant Thermostat Housing

Engine Coolant Thermostat Housing for GM Cooling Systems

Dorman 902-2063 is a replacement engine coolant thermostat housing built to match the fit and durability of the original housing on specified vehicles. It is made from metal and includes a bleeder valve to help service the cooling system on applications such as Chevrolet Express, GMC Savana, and other GM trucks and SUVs.

• Metal construction with a natural finish
• Outlet port diameter: 1.81
• 45-degree housing neck angle
• Air vent (bleeder valve) included
• 4 mounting holes with 0.313 mounting hole diameter
• Thermostat not included
• Package contents: thermostat housing with gasket

Fitment and Application Details

Compatible With 1998-2002 Chevrolet Express 2500, N/A; 1998-2002 Chevrolet Express 3500, N/A; 1998-2002 GMC Savana 2500, N/A; and 1998-2002 GMC Savana 3500, N/A. It also fits 1997-2000 Chevrolet C2500, N/A; 1997-2000 Chevrolet C3500, N/A; 1997-2000 Chevrolet K2500, N/A; 1997-2000 Chevrolet K3500, N/A; 1997-2000 GMC C2500, N/A; 1997-2000 GMC C3500, N/A; 1997-2000 GMC K2500, N/A; and 1997-2000 GMC K3500, N/A.

Additional coverage includes 1997-1999 Chevrolet C1500 Suburban, N/A; 1997-1999 Chevrolet C2500 Suburban, N/A; 1997-1999 Chevrolet K1500 Suburban, N/A; 1997-1999 Chevrolet K2500 Suburban, N/A; 1997-1999 Chevrolet P30, N/A; 1997-1999 Chevrolet Tahoe, N/A; 1997-1999 GMC C1500 Suburban, N/A; 1997-1999 GMC C2500 Suburban, N/A; 1997-1999 GMC K1500 Suburban, N/A; 1997-1999 GMC K2500 Suburban, N/A; 1997-1999 GMC P3500, N/A; 1997-1998 Chevrolet K1500, N/A; 1997-1998 GMC K1500, N/A; and 1997 GMC Yukon, N/A. It also fits 1996 Chevrolet and GMC models with the two-thermostat cover configuration, including C1500, C1500 Suburban, C2500, C2500 Suburban, C3500, K1500, K1500 Suburban, K2500, K2500 Suburban, K3500, P30, Tahoe, P3500, and Yukon.

What This Housing Helps Address

• Cracked or corroded thermostat housing on GM cooling systems
• Coolant leaks at the housing or gasket sealing surface
• Bleeding air from the cooling system during service
• Fitment issues caused by a worn original housing
• Replacement needs on Chevrolet Express, GMC Savana, and related GM truck and SUV applications

Installation Notes and Tips

Verify the outlet port diameter, 45-degree neck angle, and 4-hole mounting pattern before installation. This Dorman 902-2063 thermostat housing includes a gasket, and the thermostat is not included. On 1996 applications, confirm the vehicle uses the two-thermostat cover setup noted in the fitment data.

Quality Assurance

Dorman engineers this replacement thermostat housing to match the stock part’s fit and durability while standing up to extreme temperature changes for longer service life. This part cross-references Four Seasons 85222 and Motorad CH3063 for the same application.