Fel-Pro 35839 Engine Coolant Thermostat Seal

Fel-Pro Thermostat Seal for Ford Applications

Fel-Pro 35839 is an engine coolant thermostat seal built for Ford, Lincoln, and Mercury applications that use a precise thermostat-to-housing seal. It uses application-specific materials to support reliable coolant sealing in demanding cooling system service.

Key Features

• Engine coolant thermostat seal for sealing the thermostat housing interface
• Premium grade construction
• Thickness: 0.268 in. / 6.8 mm
• Mounting hole quantity: 0
• Fel-Pro sealing materials are selected for vehicle-specific fit and durability

Detailed Description

Fel-Pro 35839 is a thermostat seal for a wide range of Ford, Lincoln, and Mercury vehicles, including the Ford Mustang, Transit Connect, Escape, Explorer, Fusion, Focus, Taurus, and Ranger. It also fits Lincoln Corsair, Nautilus, MKZ, MKC, and MKT applications, plus Mercury Milan models. This part cross-references MAHLE C32323 for the same application. If you are replacing a thermostat seal during cooling system service, Fel-Pro 35839 provides the sealing surface needed to help maintain proper coolant containment at the thermostat housing.

What It Helps Address

• Coolant seepage at the thermostat housing
• Sealing issues after thermostat replacement
• Leak paths caused by a worn or flattened thermostat seal
• Cooling system service on Ford Mustang and Ford Fusion applications
• Thermostat housing reseal work on Ford Escape, Explorer, and Transit Connect models

Installation Notes and Tips

Clean the thermostat housing and mating surfaces before installation. Inspect the housing for corrosion, pitting, or distortion that could affect sealing. Verify the seal matches the original application before assembly, especially on Ford Mustang, Ford Fusion, and Lincoln MKZ cooling system repairs. Follow the vehicle service procedure for thermostat housing torque and coolant refill.

Quality Assurance

Fel-Pro gaskets are built around vehicle-specific sealing materials and application-focused design to support professional repair standards. Fel-Pro 35839 is made for direct-fit cooling system sealing in the listed Ford, Lincoln, and Mercury applications.

• Fits 2015-2023 Ford Mustang, N/A
• Fits 2010-2023 Ford Transit Connect, N/A
• Fits 2018-2022 Ford EcoSport, N/A
• Fits 2021 Ford Bronco, N/A
• Fits 2021 Ford Bronco Sport, N/A
• Fits 2012-2021 Ford Edge, N/A
• Fits 2013-2021 Ford Escape, N/A
• Fits 2012-2021 Ford Explorer, N/A
• Fits 2019-2021 Ford Ranger, N/A
• Fits 2020-2021 Lincoln Corsair, N/A
• Fits 2019-2021 Lincoln Nautilus, N/A
• Fits 2008-2020 Ford Fusion, N/A
• Fits 2011-2020 Lincoln MKZ, N/A
• Fits 2015-2019 Lincoln MKC, N/A
• Fits 2012-2018 Ford Focus, N/A
• Fits 2013-2017 Ford Taurus, N/A
• Fits 2013-2016 Lincoln MKT, N/A
• Fits 2008-2011 Mercury Milan, N/A
• Fits 2007 Ford Fusion, N/A
• Fits 2006-2007 Mercury Milan, N/A