Fel-Pro 35863 Engine Coolant Outlet Gasket

Fel-Pro 35863 Engine Coolant Outlet Gasket

Fel-Pro 35863 is a premium engine coolant outlet gasket built for direct-fit sealing in select Cadillac applications. It uses application-specific materials to help maintain a reliable seal where the coolant outlet meets the engine, supporting consistent cooling-system performance.

Key Features

• Premium-grade engine coolant outlet gasket for sealing the coolant outlet connection
• Application-specific material selection for vehicle-specific fit and sealing performance
• Two mounting holes for the correct mounting pattern on supported applications
• Compatible with 2004-2009 Cadillac SRX, N/A
• Compatible with 2004-2009 Cadillac XLR, N/A
• Compatible with 2005-2010 Cadillac STS, N/A

Detailed Description

Fel-Pro 35863 is an engine coolant outlet gasket engineered for select Cadillac models, including Cadillac STS, Cadillac SRX, and Cadillac XLR. As a premium sealing component, it is built to help restore the joint between the coolant outlet and mating surface, where heat cycling and coolant exposure can affect seal integrity over time. This part number, 35863, is a practical choice for technicians and owners looking for a direct replacement gasket with vehicle-specific sealing materials.

Fel-Pro gaskets are known for application-focused sealing solutions, and this part follows that approach with a design intended to match the needs of the listed vehicles. This part cross-references MAHLE C32434 for the same application.

What It Helps Address

• Coolant seepage at the outlet-to-engine sealing surface
• Loss of seal after repeated heat cycles
• Coolant odor or visible residue near the coolant outlet
• Sealing issues during coolant outlet service or replacement
• Fitment concerns when replacing a worn gasket on Cadillac STS, SRX, or XLR

Installation Notes and Tips

Clean both mating surfaces thoroughly before installation and inspect the coolant outlet for corrosion, pitting, or distortion. Verify the gasket orientation against the original part and confirm the mounting hole alignment before tightening fasteners to the vehicle manufacturer’s specification. After installation, refill and bleed the cooling system according to service procedures and check for leaks at operating temperature.

Quality Assurance

Fel-Pro focuses on vehicle-specific sealing materials and professional-grade gasket construction for dependable sealing performance in cooling-system service.