Description
Oil leaks at the crankshaft seal compromise engine efficiency and create messy cleanup headaches—this Peterson Fluid rear main seal eliminates that problem with a proven two-piece design. Built with PTFE material and Peterson’s trusted Tri-Tec technology, it delivers reliable sealing for high-performance Small Block Ford engines. If you’re running a 351 with a 302 crankshaft, this is the direct-fit solution that keeps oil where it belongs.
- Peterson Fluid Tri-Tec design
- Two-piece construction
- PTFE material
- Small Block Ford fitment
- 351W / 302 crankshaft compatible
- MPN: SM85742
- Sold individually








