Fel-Pro 35312 Engine Coolant Thermostat Housing Gasket - Inner or Left Inner

Fel-Pro 35312 Thermostat Housing Gasket

Fel-Pro 35312 is a premium engine coolant thermostat housing gasket built for applications that demand a precise seal at the thermostat housing. It uses application-specific materials to support reliable coolant sealing on a wide range of Nissan, INFINITI, and Mercury vehicles.

For drivers searching for a thermostat housing gasket for Nissan Frontier, Xterra, Pathfinder, Quest, or related applications, this Fel-Pro gasket is built to match the sealing needs of the original installation. The Fel-Pro 35312 part number is also a direct reference point for service and replacement searches.

Key Features

• Premium-grade thermostat housing gasket for engine coolant sealing
• Application-specific sealing material for a precise fit
• Supports 100% vehicle sealing at the thermostat housing interface
• Fits select Nissan, INFINITI, and Mercury applications
• Two mounting holes for the specified housing pattern
• Fel-Pro 35312 cross-reference for parts lookup and ordering

Detailed Description

Fel-Pro 35312 is an engine coolant thermostat housing gasket engineered for sealing the thermostat housing to the engine on covered applications. Fel-Pro focuses on vehicle-specific sealing solutions, and this premium gasket follows that approach with materials selected for the demands of coolant system service. It is a practical choice for maintenance and repair work on vehicles such as the Nissan Frontier, Nissan Xterra, Nissan Pathfinder, Nissan Quest, INFINITI QX4, and Mercury Villager.

This part cross-references MAHLE C24211 and C39116 for the same application.

What This Part Helps Address

• Coolant seepage at the thermostat housing
• Sealing issues after thermostat service
• Leak paths caused by a worn or flattened gasket
• Loss of coolant from the housing-to-engine joint
• Service replacement for aging thermostat housing seals

Installation Notes and Tips

Clean both mating surfaces before installation and remove all old gasket material, corrosion, and coolant residue. Verify the housing and thermostat surfaces are flat and free of damage before fitting the new gasket. Confirm the application by year, make, model, and position before installation; this gasket fits select inner and left inner applications across the listed vehicles.

• Fits 1999-2004 Nissan Frontier, Inner
• Fits 2000-2004 Nissan Xterra, Inner
• Fits 1999-2002 Mercury Villager, Inner
• Fits 1993-2002 Nissan Quest, Inner
• Fits 1997-2000 INFINITI QX4, Inner
• Fits 1987-2000 Nissan Pathfinder, Inner
• Fits 1993-1998 Mercury Villager, Left Inner
• Fits 1995 Nissan Pickup, Inner
• Fits 1986-1994 Nissan D21, Inner
• Fits 1990-1992 INFINITI M30, Inner
• Fits 1984-1989 Nissan 300ZX, Inner
• Fits 1987-1988 Nissan 200SX, Inner
• Fits 1985-1988 Nissan Maxima, Inner

Quality Assurance

Fel-Pro gaskets are built around application-specific sealing materials and vehicle-focused fitment to support dependable coolant system service. The Fel-Pro 35312 is a premium sealing component for covered Nissan, INFINITI, and Mercury applications.