SKP SK9022131 Engine Coolant Thermostat Housing Assembly

Engine Cooling Control for GM SUVs

The SKP Engine Coolant Thermostat Housing Assembly helps regulate coolant flow so the engine reaches and maintains the proper operating temperature. Built from metal aluminum (ADC12), this thermostat housing assembly is made to meet or exceed OE specifications for a direct-fit replacement on select Chevrolet, GMC, Buick, Saab, and Oldsmobile applications.

Use SK9022131 when you need a thermostat housing assembly for a Chevrolet Trailblazer, GMC Envoy, or related platform with a 190-degree thermostat specification. This SKP thermostat housing assembly is also a fitment-based replacement for several GM SUV applications and cross-references Gates 33939 for the same application.

Key Features

• Engine coolant thermostat housing assembly for temperature regulation
• Metal aluminum (ADC12) construction for durability
• Built to meet or exceed OE specifications
• Direct-fit replacement for select GM and Saab vehicles
• Includes thermostat with 190 degrees Fahrenheit calibration on listed applications
• Part number SK9022131 for catalog and service reference

Detailed Description

The thermostat housing assembly is a critical part of the cooling system because it controls when coolant begins circulating through the engine and radiator. On the listed applications, SK9022131 is engineered for proper fit and consistent temperature control, helping the engine warm up correctly and maintain stable operating temperatures during normal driving. It is compatible with 2002-2009 Chevrolet Trailblazer, 2002-2009 GMC Envoy, 2005-2009 Saab 9-7x, 2004-2007 Buick Rainier, 2002-2006 Chevrolet Trailblazer EXT, 2002-2006 GMC Envoy XL, 2004-2005 GMC Envoy XUV, 2002-2004 Oldsmobile Bravada, and 2002 Chevrolet Blazer applications listed in the fitment data. The SK9022131 housing is a practical OE-style replacement when the original housing is cracked, warped, or no longer sealing correctly.

Common Problems This Part Addresses

• Coolant leaks at the thermostat housing
• Engine running too cool or taking too long to warm up
• Overheating caused by restricted coolant flow
• Temperature fluctuations from a worn thermostat housing
• Sealing issues from a damaged aluminum housing

Installation Notes and Tips

Verify engine configuration and thermostat temperature specification before installation. Clean the mating surfaces thoroughly and inspect the cooling system for contamination, damaged hoses, or worn seals that could affect performance. For fitment-based replacement, confirm the vehicle is one of the listed applications before ordering SK9022131.

Quality Assurance

SKP manufactures this thermostat housing assembly to meet or exceed OE specifications using aluminum ADC12 material for long-term service in the cooling system. This part cross-references Gates 33939 for the same application.