The Enginetech S0629 is a 2-piece polyacrylate rear main seal engineered as a stock replacement for 1962-1968 Buick, Chevrolet, GMC, Oldsmobile and more engine applications.
Important Notes
- 2-Piece design: verify your engine uses a 2-piece seal before ordering - 1-piece and 2-piece seals are not interchangeable.
- Polyacrylate construction: classic-engine-specification compound.
Specifications
| Brand | Enginetech |
| Part Number | S0629 |
| Product Type | Rear Main Seal |
| Design | 2-Piece |
| Material | Polyacrylate |
| Country of Origin | Mexico |
| OEM / Aftermarket Cross References | FEL-PRO:BS13241, Victor Reinz:JV728, Detroit Diesel:17053 |
Vehicle Fitment
- Years: 1962-1968
- Makes: Buick, Chevrolet, GMC, Oldsmobile, Pontiac
- Models: 1000, 1000 Series, 1500, 1500 Series, 2500, 2500 Series, 3000, 3500, Bel Air, Biscayne, C10 Panel, C10 Pickup, C10 Suburban, C15/C1500 Pickup, C15/C1500 Suburban, C20 Pickup, C20 Suburban, C25/C2500 Pickup, C25/C2500 Suburban, C30 Panel, C30 Pickup, C35/C3500 Pickup, Camaro, Caprice, Chevelle, and more
The rear main seal (also called the crankshaft rear seal) prevents engine oil from leaking between the back of the crankshaft and the transmission bell housing. Over miles and heat cycles, the seal hardens, cracks, or takes a permanent compression set - producing the characteristic oil drip at the bell housing and, if left unchecked, oil contamination of the clutch disc or flex plate. Replacing the rear main seal during a transmission service or engine rebuild restores the final oil seal between the crankshaft and drivetrain, preventing slow leaks and protecting the clutch and flywheel from contamination.
