Crankshaft Rear Main Seal 1pc fits Chevy 305 350 V8 as in FP BS40520

Description

New old stock,
1pc crankshaft rear main seal.
Fits Chevrolet  V6 and V8 305 350  1986-Up like Corvette.
This seal interchanges with National Seal # 48059
This dark brown seal is P/N CSR4520
This is the seal that comes as part of FelPro #  BS40520 BS40626 kits, just without the gasket.
Double, Offset Lip Seal
Get a new fluoroelastomer (Viton) rear main seal for a great price!
Fitment & Information:
GM Chevrolet 6 Cyl 4.3, 262 CID 1986-1995
GM Chevrolet 8 Cyl 5.0, 305 CID 1986-1997
GM Chevrolet 8 Cyl 5.7, 350 CID 1986-1997
Double Lip? - YES. Seals oil inside and keeps dirt and dust out.
Offset Seal Lip Location? - YES. Works with both new and used crankshafts.
Fluoroelastomer Material? - YES. (Viton)
Gasket Included? - NO
Use for Racing?- YES.
Part # CSR-4520
Interchange numbers- BS40520 BS40626 BS40656
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