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Fel-Pro

Fel-Pro BS40625 Rear Main Gasket Set

SKU CH-CC3Z-3WW13

Rear main gasket set BS40625 seals the crankshaft rear seal area to prevent oil leaks

  • ColorTransparent
  • Rear main seal replacement kit from Fel-Pro
  • Transparent colour aids visual inspection during installation
  • Part number BS40625 for precise vehicle fitment
  • Engine tools category covers professional rebuild needs
  • First listed by manufacturer in March 2024

Engine Rear Main Gasket Set

The Fel-Pro BS40625 rear main gasket set is designed for engine repair work where the crankshaft rear seal must be replaced. It suits professional technicians and experienced DIY mechanics performing bottom-end overhauls or addressing oil leaks at the rear main bearing cap.

Thermals Noise and Power Draw

This gasket set contains no moving parts, electronics or cooling requirements, so thermals, noise and power draw are not applicable. Installation relies on hand tools and shop consumables rather than electrical supply.

Upgrade and Replacement Context

The set replaces a worn or leaking original-equipment rear main seal during engine reassembly. The jump is worthwhile whenever the engine is already open for crankshaft service, main-bearing work or a full rebuild, preventing repeat labour for the same seal.

Highlights

  • Rear main seal replacement kit from Fel-Pro
  • Transparent colour aids visual inspection during installation
  • Part number BS40625 for precise vehicle fitment
  • Engine tools category covers professional rebuild needs
  • First listed by manufacturer in March 2024

Specifications

BrandFEL-PRO
ColorTransparent

Questions about this item

How do I install the Fel-Pro BS40625 rear main gasket set, and what step is commonly missed?

Clean the crankshaft and block surfaces thoroughly, apply the supplied sealant only where the instructions show, and torque the cap bolts in the specified sequence; the step most often missed is the exact sealant placement on the parting-line joints.

What maintenance or replacement will the Fel-Pro BS40625 rear main gasket set need later?

The gasket set itself is a one-time installation item; it does not require periodic maintenance, but it must be replaced whenever the rear main seal area is opened again for crankshaft or bearing work.

What limit appears first on the Fel-Pro BS40625 rear main gasket set under sustained engine operation?

The primary limit is the gasket material’s ability to maintain a seal against heat cycling and crankshaft rotation over time; once the seal degrades, oil leakage at the rear main will occur.

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