Fel-Pro 35762 Engine Coolant Thermostat Seal

Fel-Pro 35762 Engine Coolant Thermostat Seal

Fel-Pro 35762 is an engine coolant thermostat seal built for direct-fit sealing performance in a range of Chevrolet, GMC, and Hummer applications. It uses application-specific materials to help maintain a reliable coolant seal where the thermostat housing meets the engine cooling system.

Key Features

• Inside diameter: 1.950 in. / 49.5 mm
• Thickness: 0.158 in. / 4.0 mm
• Premium grade construction
• No mounting holes
• Engine coolant thermostat seal for sealing system service
• Fits Chevrolet Express 2500, Express 3500, Silverado 2500 HD, Silverado 3500 HD, Silverado 3500 Classic, and Silverado 3500 applications
• Fits GMC Savana 2500, Savana 3500, Sierra 2500 HD, Sierra 3500 HD, Sierra 3500 Classic, and Sierra 3500 applications

Detailed Description

This Fel-Pro thermostat seal is engineered around the dimensions that matter for coolant sealing: a 1.950-inch inside diameter, 0.158-inch thickness, and premium-grade material selection. Those specs help support a proper seal at the thermostat housing, where coolant leaks can lead to temperature control problems and loss of system integrity. Fel-Pro 35762 is a practical choice for service work on Chevrolet Silverado 2500 HD, GMC Sierra 2500 HD, and related heavy-duty truck and van platforms.

This part cross-references MAHLE C31889 for the same application. Fel-Pro 35762 also cross-references 97300793 and WO8689.

What It Helps Address

• Coolant seepage at the thermostat housing
• Loss of sealing integrity during thermostat service
• Coolant odor or visible residue around the housing area
• Temperature fluctuations caused by sealing issues
• Repeat cooling system service from worn or flattened seals

Installation Notes and Tips

Clean the sealing surfaces thoroughly before installation and inspect the thermostat housing for corrosion, pitting, or distortion. Verify the seal dimensions match the application before assembly, and follow the vehicle service procedure for the Chevrolet Express, Silverado, GMC Savana, Sierra, and Hummer H1 platforms listed in the fitment data.

Quality Assurance

Fel-Pro gaskets are known for application-specific sealing materials and vehicle-focused fitment. That engineering approach supports dependable sealing performance in professional cooling system service.

Compatible Vehicles

• Fits 2006-2016 Chevrolet Express 2500, N/A
• Fits 2006-2016 Chevrolet Express 3500, N/A
• Fits 2001-2016 Chevrolet Silverado 2500 HD, N/A
• Fits 2007-2016 Chevrolet Silverado 3500 HD, N/A
• Fits 2006-2016 GMC Savana 2500, N/A
• Fits 2006-2016 GMC Savana 3500, N/A
• Fits 2001-2016 GMC Sierra 2500 HD, N/A
• Fits 2007-2016 GMC Sierra 3500 HD, N/A
• Fits 2007 Chevrolet Silverado 2500 HD Classic, N/A
• Fits 2007 Chevrolet Silverado 3500 Classic, N/A
• Fits 2007 GMC Sierra 2500 HD Classic, N/A
• Fits 2007 GMC Sierra 3500 Classic, N/A
• Fits 2001-2006 Chevrolet Silverado 3500, N/A
• Fits 2001-2006 GMC Sierra 3500, N/A
• Fits 2006 Hummer H1, N/A