Fel-Pro 35643 Engine Water Pump Gasket

Fel-Pro 35643 Engine Water Pump Gasket

Fel-Pro 35643 is a premium engine water pump gasket built for Toyota cooling system service. It uses application-specific sealing materials to help deliver a precise seal on supported Toyota Tacoma, 4Runner, and T100 applications.

With a black finish, 0.018 thickness, and 11 mounting holes, this Fel-Pro water pump gasket is made for accurate fitment where dependable coolant sealing matters. It is a direct-fit sealing solution for Toyota Tacoma water pump gasket replacement and related Toyota engine cooling repairs.

Key Features

• Fel-Pro Part Number 35643
• Engine water pump gasket for Toyota cooling system service
• Premium grade type for sealing applications
• Black gasket material with 0.018 thickness
• 11 mounting holes for application-specific alignment
• Fits 1995-2023 Toyota Tacoma
• Fits 2010 Toyota 4Runner
• Fits 1996-2000 Toyota 4Runner
• Fits 1994-1998 Toyota T100

Detailed Description

Fel-Pro 35643 is engineered as an engine water pump gasket for Toyota vehicles that need a reliable seal between the water pump and engine mating surface. Fel-Pro focuses on vehicle-specific sealing materials, and this gasket reflects that approach with a premium construction, 0.018 thickness, and an 11-hole layout for proper alignment during service. It is a practical choice for Toyota Tacoma, Toyota 4Runner, and Toyota T100 cooling system repairs where sealing integrity is critical.

This part cross-references MAHLE K31571 for the same application. Fel-Pro 35643 is a strong fit for Toyota Tacoma water pump gasket replacement and Toyota 4Runner engine cooling maintenance across the listed model years.

What It Helps Fix

• Coolant seepage at the water pump mounting surface
• Leaks caused by a worn or flattened gasket
• Sealing issues after water pump service
• Loss of coolant from a compromised pump-to-engine interface
• Repeat repairs caused by poor gasket fitment

Installation Notes and Tips

Clean both mating surfaces thoroughly before installation and remove all old gasket material, corrosion, and sealant residue. Verify the water pump and engine surfaces are flat and undamaged, then align the gasket carefully with the 11 mounting holes before tightening fasteners to the vehicle manufacturer’s torque specification.

For Toyota Tacoma, 4Runner, and T100 applications, confirm engine-specific fitment before installation. Proper surface prep and correct torque help the gasket seal as intended.

Quality Assurance

Fel-Pro gaskets are built around application-specific sealing materials and vehicle-focused fitment to support dependable sealing performance in professional repair environments.