Fel-Pro Timing Cover Gasket Set for Ford 4.6L/5.4L - TCS 46078, Complete Seal Kit for F-150 & Expedition

Fel-Pro TCS 46078 is a complete timing cover gasket and seal kit designed to restore leak-free sealing for Ford F-150 and related Ford/Lincoln models.

This kit supplies the vehicle-specific gaskets and seals used when replacing a timing cover on compatible Ford 4.6L/5.4L engines. Fel-Pro engineers these components to match OE geometry and materials so the parts align and perform in a repair-shop environment. The set helps simplify a timing cover service by grouping the necessary sealing parts into one kit validated for fit, form, and function.

Which vehicles does this timing cover gasket set fit?

The TCS 46078 is produced for a range of Ford and Lincoln vehicles that use the same timing cover layout. Fitment covers multiple model years and platforms that share the 4.6L/5.4L timing cover design. Always cross-check with your VIN or engine code before ordering to confirm compatibility.

• 2004–2010 Ford F-150
• 2005–2014 Ford Expedition
• 2005–2014 Lincoln Navigator and 2006–2008 Lincoln Mark LT
• 2005–2010 Ford F-250/F-350 Super Duty

What parts are included and how does this help installation?

The kit contains the timing cover gasket plus the seals required when removing and reinstalling the timing cover during chain or belt work. Having matched parts reduces the risk of missing a seal and streamlines reassembly. The application-specific pieces are dimensioned for direct replacement of factory sealing surfaces.

• Main timing cover gasket molded to match cover profile
• Cam/crankshaft or seal components needed for the job
• All pieces designed for correct orientation and installation
• Validated pack to eliminate guesswork during repairs

What materials and engineering features affect durability?

Fel-Pro selects sealing materials suited to engine operating conditions and exposure to oil and heat. The gaskets are application-specific to maintain sealing under thermal cycles and vibration typical of truck engines. Manufacturing and validation focus on matching the factory surfaces and tolerances found in the repair environment.

• Materials chosen for oil resistance and temperature stability
• Profiled gaskets for accurate sealing along cover flanges
• Tested to ensure form and fit during installation

How do I know when to replace the timing cover gasket?

Replace the timing cover gasket when you see oil seepage at the cover seam or during timing service when the cover is removed. Routine inspection during maintenance can reveal softened or compressed gasket material and leaking seals. Installing a new kit while addressing timing components prevents future disassembly for the same issue.

• Visible oil at front cover perimeter or timing cover bolts
• Oil pooling under front of engine or on driveway
• Cover removal for timing chain/belt work — replace as preventative maintenance

Who is this for: The Fel-Pro TCS 46078 kit is aimed at professional technicians, home mechanics, and fleet service shops working on Ford and Lincoln trucks from the model years listed who want a single, validated set of gaskets and seals for timing cover service. It is useful any time the timing cover is removed or when sealing performance must be restored while keeping repair time efficient.