Stant 27175 Engine Coolant Thermostat Gasket

Engine Coolant Thermostat Gasket for OE Fit

The Stant 27175 thermostat gasket is an OE-specification engine coolant thermostat gasket built for a precise seal at the thermostat housing. It is made for long-lasting operation and is a direct replacement choice for classic Chevrolet and GMC truck and SUV applications.

• OE specification thermostat gasket for accurate sealing
• Engine coolant thermostat gasket for cooling system service
• Direct replacement for part number 25175
• Fits 1979-1984 Chevrolet C10, N/A
• Fits 1979-1984 Chevrolet C20, N/A
• Fits 1979-1984 Chevrolet K10, N/A
• Fits 1979-1984 GMC C1500, N/A
• Fits 1979-1984 GMC C2500, N/A

Stant Thermostat Gasket Line

Stant thermostat gaskets are built for cooling system service where the thermostat housing must seal correctly to maintain proper coolant control. The 27175 part number is part of Stant’s thermostat gasket line and is intended for applications that call for an OE-style replacement gasket.

This part cross-references 25175 for the same application.

Detailed Application Coverage

Compatible With Chevrolet C10, C20, K10, K5 Blazer, C30, C15, C35, G10, G20, and G30 models, plus GMC C1500, C2500, C3500, G1500, G2500, G3500, and Jimmy applications across the listed 1979-1984 model years. The Stant 27175 thermostat gasket is a practical service part for Chevrolet and GMC cooling system repairs where a thermostat housing seal is required.

What This Part Helps Address

• Coolant seepage at the thermostat housing
• Loss of sealing after thermostat service
• Cooling system leaks caused by a worn gasket
• Improper thermostat housing reseal during maintenance
• Replacement of a damaged OE-style thermostat gasket

Installation Notes and Tips

Clean the thermostat housing and mating surfaces before installation so the gasket seats evenly. Verify the thermostat and housing surfaces are free of old gasket material, corrosion, and debris before reassembly. Confirm the application against the vehicle listing, especially on Chevrolet C10, K10, and GMC C1500/C2500 models from the 1979-1984 range.

Quality Assurance

Stant states this gasket conforms to OE specification and is engineered for long service life. The part number is 27175.