Fel-Pro 35770 Engine Coolant Thermostat Seal

Fel-Pro 35770 Engine Coolant Thermostat Seal

Fel-Pro 35770 is a premium engine coolant thermostat seal built for direct-fit sealing performance in select Chrysler and Dodge applications. It uses application-specific materials to help maintain a reliable coolant seal where the thermostat housing meets the engine cooling system.

Key Features

• Premium-grade thermostat seal for engine cooling system service
• Inside diameter: 1.945 in. / 49.4 mm
• Thickness: 0.260 in. / 6.6 mm
• Mounting hole quantity: 0
• Engineered for 100% vehicle sealing with application-specific materials
• Cross-references MAHLE C32390 for the same application

Detailed Description

Fel-Pro 35770 is an engine coolant thermostat seal designed for vehicles that require a precise sealing surface at the thermostat housing. The premium construction and measured dimensions help support consistent sealing performance in cooling system repairs. This part is a direct service choice for 2005-2010 Chrysler 300, 2008-2010 Chrysler Sebring, 2008-2010 Dodge Avenger, 2006-2010 Dodge Charger, and 2005-2008 Dodge Magnum applications. If you are replacing a thermostat seal on a Chrysler 300 or Dodge Charger, Fel-Pro 35770 provides the correct fitment-focused solution.

What It Helps Fix

• Coolant seepage at the thermostat housing
• Sealing issues after thermostat service
• Leaks caused by a flattened or worn thermostat seal
• Cooling system maintenance on Chrysler and Dodge V6 applications
• Repeat repairs from poor sealing surfaces

Installation Notes and Tips

Inspect the thermostat housing and mating surfaces before installation. Remove old gasket material, coolant residue, and corrosion so the new seal can seat evenly. Verify the seal dimensions match the application before assembly, and follow the vehicle service procedure for torque and coolant refill.

Quality Assurance

Fel-Pro gaskets are known for application-specific sealing materials and OE-style fitment focus. Part number 35770 is built to support dependable sealing in cooling system service for Chrysler 300, Dodge Charger, and related fitments.