

Fluoroelastomer 1-Piece Rear Main Seal Gasket for 1986-1995 Chevy and GM 4.3L, 5.0L, and 5.7L Small Block Engines
Fel-Pro 2919 is a rear crankshaft seal kit for Chevy and GM small-block service where oil is escaping at the back of the crankshaft. The 1-piece, full-circle seal design supports rebuild, repair, and performance use on 4.3L V6, 5.0L V8, and 5.7L V8 applications in the late 1980s through mid-1990s range, giving engine builders a purpose-built sealing part instead of a generic replacement.
Fel-Pro 2919 Features:
- Full-circle rear main seal design seals around the crankshaft to help control rear oil leaks during engine repair or rebuild work.
- Fluoroelastomer FPM sealing material is specified for resistance to heat, engine oil, and abrasion in demanding operating conditions.
- Seal dimensions are 3.670 in. inside diameter and 4.541 in. outside diameter for matching the intended crankshaft and block seal bore.
- 1-piece configuration fits the later small-block Chevy and GM rear main seal layout used on covered 4.3L, 5.0L, and 5.7L engines.
Includes:
- Rear crankshaft seal kit
Use during a rear main leak repair, short-block assembly, or complete small-block rebuild. Installation should be matched to a clean crankshaft sealing surface and the correct 1-piece rear main seal block configuration.
Application data supports Chevy and GM 4.3L 262 CID V6, 5.0L 305 CID V8, and 5.7L 350 CID V8 small-block engines within the 1986-1995 coverage range. Verify engine family, rear main seal style, and emissions legality for the specific vehicle before ordering, especially for performance-only applications.

