Rear Main Seals

A failing rear main seal is one of the most common sources of oil leaks on Small Block Chevy engines, and ignoring it can lead to catastrophic engine damage. This SCE Gaskets 1-piece design eliminates the complexity of traditional split-seal...

Oil leaks at the rear main seal can undermine engine reliability and create hazardous shop conditions—costing you downtime and credibility. SCE Gaskets' 2-piece Viton design provides the robust sealing integrity that serious SBC builds demand, whether...

A failing rear main seal is one of the most insidious oil leaks in any small block Chevy engine—it drips silently, ruins your driveway, and compromises engine longevity if left unchecked. SCE Gaskets' 2-piece silicone rear main seal is engineered to stop...

A failing rear main seal is one of the most common sources of oil leakage on Small Block Ford engines, leading to costly damage if left unaddressed. The Peterson Fluid SM85339 is a direct-fit replacement that restores the critical seal between your...

A leaking rear main seal can quickly turn a precision-built LS engine into an oil-weeping liability. This OEM Chevrolet Performance seal stops crankshaft leaks at the source, protecting your oil supply and keeping your engine running clean and dry...

A reliable rear main seal is the barrier between catastrophic oil loss and a clean engine bay—especially critical when you're pushing your Small Block Chevy or V6 to the limit on the dyno or track. SCE Gaskets' 2-piece silicone design delivers consistent...

A leaking rear main seal doesn't just waste oil—it threatens engine longevity and leaves you sidelined during critical race weekends or project builds. The Peterson Fluid SBC 350 Rear Main Seal delivers OEM-quality sealing performance with proven Tri-Tec...

A leaking rear main seal tanks oil pressure, fouls your oil, and turns a weekend project into a catastrophic engine failure. Peterson's two-piece Tri-Tec design eliminates guesswork with precision-engineered PTFE construction that seats perfectly and...

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...

A failing rear main seal leads to catastrophic oil loss, potential engine damage, and costly downtime. The Mr. Gasket 1960 delivers a reliable, proven solution with a two-piece silicone design that maintains a tight seal under demanding conditions. This...

Rear main seal leaks are a common failure point in high-mileage 302 SVO engines, leading to oil loss, engine bay contamination, and potential bearing damage if left unaddressed. The Fel-Pro 2942 RS uses a PTFE-coated design to provide superior sealing...

A leaking rear main seal is one of the most common sources of oil loss in classic Ford 302 engines—and one of the easiest to fix with the right part. The Fel-Pro 2941 is a proven OEM-quality replacement that seals reliably without requiring engine...

A failing rear main seal is a one-way ticket to oil leaks and engine damage. This Fel-Pro 302 Ford Rear Main Seal stops seepage at the source, protecting your crankshaft and keeping your Small Block Ford's oil where it belongs—inside the engine. Whether...

A failing rear main seal is one of the most common culprits behind oil leaks on Small Block Ford engines—and ignoring it will cost you more in cleanup and potential engine damage than the seal itself. Fel-Pro's single-piece design eliminates the...

A leaking rear main seal compromises engine integrity and leaves oil on your driveway—exactly what you don't want. This Fel-Pro full-circle design seals completely around the crankshaft, eliminating bypass leaks that plague worn OEM seals. For 1986-1992...

A leaking rear main seal is one of the most common sources of oil seepage on classic Small Block Chevy engines, and ignoring it only accelerates damage to your crankshaft and clutch assembly. Fel-Pro's two-piece rubber rear main seal is engineered to...

A leaking rear main seal can quickly turn a precision build into an oil-weeping nightmare, compromising engine cleanliness and overall reliability. The Fel-Pro SBC 2 Piece Rear Main Align Bored 400 Mains seal delivers factory-grade sealing performance...

A leaking rear main seal can turn a solid engine build into an oil-soaked mess, costing you valuable track time and reliability. Fel-Pro's silicone rear main seal eliminates weeping and seepage on small block Ford engines, giving you the peace of mind to...

A leaking rear main seal compromises engine integrity and creates costly oil seepage that damages surrounding components. The Fel-Pro 2-Piece Silicone Rear Main Seal eliminates this vulnerability with a proven design that delivers reliable, long-term...

A leaking rear main seal can quickly turn a precision build into an oil-weeping disaster, compromising both performance and engine longevity. This two-piece rubber seal is engineered for SBC 400 blocks with align-hone and aluminum construction,...