The Fel-Pro BS 40678 is a PTFE Rubber one-piece rear main seal set that seals the crankshaft where it exits the engine block, sealing the rotating crank journal against oil leaks at the rear main bearing on the applications listed below, restoring a clean sealing surface for a reliable, oil-tight seal.
| Brand | Fel-Pro |
| Part Number | BS 40678 |
| Product Type | One-Piece Rear Main Seal Set |
| Material | PTFE Rubber |
| Engine | L6 (4.2L) |
| UPC | 614046738751 |
| Shipping Dimensions | 17.25 x 4 x 0.21 in, 0.16 lb |
Vehicle Fitment:
- 2003-2008 Isuzu Ascender 4.2L
- 2004-2007 Buick Rainier 4.2L
- 2002-2006 Chevrolet Trailblazer EXT 4.2L
- 2002-2009 Chevrolet Trailblazer 4.2L
- 2004-2005 GMC Envoy XUV 4.2L
- 2002-2006 GMC Envoy XL 4.2L
- 2002-2009 GMC Envoy 4.2L
- 2002-2004 Oldsmobile Bravada 4.2L
- 2005-2009 Saab 9-7x 4.2L
Important Notes:
- Lubricate the seal lip and crankshaft journal lightly before installation; never run the lip dry.
- Verify one-piece versus two-piece rear main seal design against your engine before ordering.
- Rear main seal replacement usually requires removing the oil pan or transmission - inspect the oil pan gasket and rear main bearing while the area is open.
WARNING: WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or reproductive harm.
