Motorad CH3055 Engine Coolant Thermostat Housing

Motorad CH3055 Thermostat Housing

Motorad CH3055 is an engine coolant thermostat housing built for OE-style cooling system service on select Chevrolet and GMC applications. It uses steel construction, a silver finish, and includes a gasket or seal for a direct replacement on listed vehicles.

Key Features

• Steel thermostat housing for engine coolant outlet service
• Silver finish
• Outlet port diameter: 1.47 in
• Gasket or seal included
• Two mounting holes
• Thermal shock validated and 100% leak tested
• Manufactured to OEM quality standards by an OE supplier

Fitment and Application

Compatible With 1965-1978 Chevrolet and GMC van and truck applications listed below. Fits 1975-1978 Chevrolet G10, N/A; Fits 1975-1978 Chevrolet G20, N/A; Fits 1975-1978 Chevrolet G30, N/A; Fits 1975-1978 Chevrolet P30, N/A; Fits 1976 Chevrolet G10, N/A; Fits 1976 Chevrolet G20, N/A; Fits 1975-1976 Chevrolet G30, N/A; Fits 1976 Chevrolet P20, N/A; Fits 1975-1978 GMC G15, N/A; Fits 1975-1978 GMC G25, N/A; Fits 1975-1978 GMC G35, N/A; Fits 1973-1974 GMC G15/G1500 Van, N/A; Fits 1973-1974 GMC G25/G2500 Van, N/A; Fits 1973-1974 GMC G35/G3500 Van, N/A; Fits 1971-1972 GMC G15/G1500 Van, N/A; Fits 1971-1972 GMC G25/G2500 Van, N/A; Fits 1971-1972 GMC G35/G3500 Van, N/A; Fits 1965-1966 GMC G1000 Series, N/A; Fits 1965 GMC G1000 Series, N/A.

This part cross-references Dorman OE Solutions 902-2055 for the same application.

What It Helps Address

• Coolant leaks at the thermostat housing
• Cracked or corroded original coolant outlet housing
• Improper sealing at the thermostat housing gasket surface
• Cooling system service on Chevrolet G10, G20, G30, and GMC G-series vehicles
• Replacement of a worn engine coolant water outlet assembly

Installation Notes and Tips

Verify outlet diameter, mounting hole count, and vehicle fitment before installation. Clean the mating surface thoroughly, inspect the thermostat and hose connection points, and replace any damaged sealing surfaces before assembly. Bolts are not included, so reuse or source the correct fasteners for the application.

Quality Assurance

Motorad manufactures this thermostat housing to OEM quality standards as an OE supplier. The part is thermal shock validated and 100% leak tested to support dependable sealing in demanding cooling system conditions.