Fel-Pro BS40645 Rear Main Gasket
A Fel-Pro rear main gasket seals the crankshaft rear to stop oil leaks
- Product colorTransparent
- Reliable sealing from Fel-Pro brand quality
- Transparent material allows visual inspection during installation
- Exact-fit rear-main gasket for precise engine repair
- Listed by manufacturer in early 2024
- Direct-from-manufacturer shipping ensures authentic part
Product Identity
The Fel-Pro BS40645 is a rear main gasket designed to seal the crankshaft at the back of an engine block. It is intended for mechanics and DIY enthusiasts performing engine rebuilds or addressing oil leaks in compatible applications. The transparent colour helps confirm correct seating during installation. This new component arrives directly from the manufacturer.
Suitability & Limits
This gasket suits technicians replacing a worn rear main seal on a matching engine. It is not for buyers who need a full gasket set, front seals, or components for a different engine family. Shops looking for bulk kits or additional hardware should look elsewhere.
Deciding Specification
The decisive detail is the Fel-Pro BS40645 part number, which identifies the exact engine application this gasket fits. Verify this number against your service manual before ordering.
How it compares
Measured against everything we stock in Engine Service & Diagnostic Tools, at today’s prices. Recalculated every night.
- Price $17.99
- Cheaper than about 57% of the 1,113 comparable items (median $19.99).
Specifications
| Product | |
|---|---|
| Brand name | FEL-PRO |
| Product color | Transparent |
Questions about this item
Which Fel-Pro rear main gasket version should I choose for my engine?
The BS40645 is the single model offered; match it to your engine application using the manufacturer catalogue.
What does the transparent colour mean once the gasket is installed?
The transparent material lets you visually confirm correct seating and seal alignment during installation.
What installation standard does this gasket follow and what does it seal?
It is designed to original-equipment specifications to seal the crankshaft rear main bearing journal against oil leaks.
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