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Perhaps nothing will ruin a gearhead’s day faster than a dark oily spot on the garage floor from a leaking rear main seal. And since replacing a rear main seal isn’t...
Perhaps nothing will ruin a gearhead’s day faster than a dark oily spot on the garage floor from a leaking rear main seal. And since replacing a rear main seal isn’t typically the easiest job, make sure your rear main seal repair goes right the first time by getting quality rear main seals from Summit Racing.
Whether you need a rear main seal for a Jeep 4.0L, the ubiquitous “SBC” small block Chevy 350, GM LS, Ford Windsor, Mopar LA, or whatever’s under your hood, you’ll find engine rear main seals for virtually every popular motor, often with one- and two-piece rear main seal options.
An engine rear main seal is a critical...
Perhaps nothing will ruin a gearhead’s day faster than a dark oily spot on the garage floor from a leaking rear main seal. And since replacing a rear main seal isn’t typically the easiest job, make sure your rear main seal repair goes right the first time by getting quality rear main seals from Summit Racing.
Whether you need a rear main seal for a Jeep 4.0L, the ubiquitous “SBC” small block Chevy 350, GM LS, Ford Windsor, Mopar LA, or whatever’s under your hood, you’ll find engine rear main seals for virtually every popular motor, often with one- and two-piece rear main seal options.
An engine rear main seal is a critical seal that ensures oil from the motor doesn’t seep past the crankshaft, into the transmission or onto your garage floor. Rear main seals often dry out with age, become brittle, and crack—particularly on cars and trucks that don’t get driven often. But if you notice a leak or drip from your engine’s rear main seal, don’t immediately think a rear main seal replacement is necessary. Try driving around for a week or two. There’s a chance your seal has dried out from sitting too long, and running your engine regularly for a little while may recoat it with oil, saturate the material again, and restore the seal.
Additionally, make absolutely sure your leak is from the rear main seal in the first place—it’s not uncommon for weeping valve cover gaskets or distributor seals to be misdiagnosed as rear main seal leaks. (And those are much, much easier to fix.) So, confirm that your leak is coming off the rear main first before starting down the road to a rear main seal repair.
For a lot of older engines though, their original rear main seals will often need to be replaced as they age. And a rear main seal repair can be a cumbersome, time-consuming job, so it makes sense to replace your engine’s rear main seal with a good replacement seal to ensure you don’t have to repeat the job anytime soon.
If your SBC Chevy, 351 Ford, Jeep 4.0L, or GM LS has a rear main seal that’s starting to mark its territory, replace it with a quality replacement rear main seal from Summit Racing. See all your rear main seal options here.
Showing In Stock Items. Show All 21 Items.
Mahle Original rear main seals are high-quality rear main seals designed to replace your factory seals. They are constructed from high-quality materials to meet or exceed OE standards and are designed to provide long-lasting durability and performance. If you're looking for high-quality replacement seals for your vehicle, Mahle Original rear main seals are your solution.
( 25 )
$8.99
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$115.99
Fel-Pro Performance main bearing seals are made of high-grade materials, such as silicone, polyacrylate, or fluoroelastomer. Race engine builders prefer these premium seals for their severe-duty needs.
( 190 )
$17.99
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$42.99
Chevrolet Performance offers these rear main seals as direct fit replacements for the factory original parts. These seals are the perfect choice for servicing your GM vehicle.
( 7 )
$2.99
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$32.99
SCE AccuSeal Pro rear main seals are made from top-quality Viton® material known for its excellent heat and chemical resistance. These one- or two-piece replacements are available for a wide range of vehicles from the 1950s and up. Count on SCE AccuSeal Pro rear main seals for dependable, leak-free performance!
( 11 )
$25.31
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$114.33
Ford Performance Parts rear main seals perform an important task at the back side of your crankshaft: keeping the oil inside the engine. When original gaskets begin to leak through years of heat shrinkage or pitting, simply order and install the replacement seal designed for your specific Ford block. Available in 1- or 2-piece styles, these direct fit Viton® or PTFE rings are built to resist high temperatures and maintain a secure seal.
( 20 )
$17.99
Fel-Pro rear main seals are ideal for stock rebuilds or street driven cars and trucks. These OEM-style replacement seals are not intended for race applications. They're available in a variety of materials and configurations for fitment on specific vehicles and engine families.
( 166 )
$14.99
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$223.99
Timken rear main engine seals offer the confidence of knowing you're getting the best. Whether you refer to them as rear engine crankshaft seals or rear main seals, they don't last forever. Most Timken rear crankshaft seals will feature machined rubber sealing edges, a flanged design, and a dust lip for an accurate, consistent seal that keeps fluids in and dirt out, which is exactly what they are supposed to do! And, they are available in a variety of quality materials, from silicone to PTFE. When you need to replace, reach for the perfect fit and enhanced performance of rear main seals from a name you know and trust--Timken.
( 9 )
$20.99
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$39.99
Mr. Gasket OEM stock replacement rear main seals are ideal for stock rebuilds or street-driven cars and trucks. They're made from high quality silicone to withstand extreme engine temperatures and injection molded for a precise fit. These seals are not intended for race applications.
( 9 )
$27.54
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$55.65
Keep your oil where it belongs with SCE AccuSeal E rear main seals! These seals provide the precision fit that you want at a price that you can afford, and the durability to last. SCE AccuSeal E rear main seals prevent your oil from escaping and leaking onto the track and covering your transmission.
( 11 )
$14.93
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$32.72
BTR rear main seals use only top-grade materials and ensure a fit that is perfect for your application. These are the solutions for every engine builder wanting the best-of-the-best in sealing.
( 4 )
$29.99
Peterson Fluid Systems carries quality engine seals from Tri-Tec. These rear main seals are designed for engines running crankcase vacuum—and ensure the highest vacuum levels. Peterson engine seals offer great benefits to dry sump applications.
Not Yet Reviewed
$89.99
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$136.99
Keep your oil from escaping with rear main seals from Cometic Gasket. If you have a wet spot on the rear of your oil pan, spots on your driveway, or garage floor, or worse, an oil-covered transmission, then you'd better get rear main seals from Cometic. They are made from heat-resistant, chemical-resistant Viton® material and are available in one and 2-piece seal styles. When you need superior gaskets for your high performance vehicle, Cometic has the gaskets and rear main seals to fit your application.
( 14 )
$19.93
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$112.09
ACDelco GM Genuine Parts rear main seals are a GM-recommended replacement component for one or more of the following vehicle systems: engine-mechanical. These original equipment gaskets will provide the same performance, durability, and service life you expect from General Motors.
( 1 )
$6.99
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$49.99
Fel-Pro Marine rear main seals are engineered for a perfect seal. They're built to meet or exceed OE specifications and are validated for fit, form, and function to ensure unsurpassed quality and service life. Even on water, Fel-Pro rear main seals are the right choice. The seals are available in different styles and materials. Order the model recommended for your engine application.
( 3 )
$44.99
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$70.99
ACDelco rear crankshaft oil seals are purposely designed with high-quality to replace your factory seals. They're constructed from top-grade materials to meet or exceed OE standards and are designed to provide long-lasting durability and performance. Get the fit, form, and function you need with the ACDelco rear crankshaft oil seals designed for your application.
Not Yet Reviewed
$52.99
Crown Automotive crankshaft seals are one of the most important parts of your car. These rear main seals are made from durable materials and are designed to handle extreme pressure and temperatures, as well as the caustic chemicals in your engine oil. They're located at either end of the crankshaft and allow it to spin freely and keep engine oil from escaping the engine block, as well as prevent contaminants and other debris from entering and causing damage to the mechanism. Because they are exposed to such abuse, main seals are subject to a lot of wear and tear, and replacement is the only cure when one malfunctions. Crown offers a large line of replacement seals, packing, and kits for your vehicle.
( 5 )
$1.99
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$55.99
SKF Bearings engine crankshaft seals provide superior protection against dirt and water, manufactured with high-quality tested design and materials for correct fit. Deep drawn sheet steel is used for the body to create a rigid, stress-resistant metal case; while gator springs use cold drawn steel wire for superior fluid retention. These seals are used in a variety of applications, including 1970s era Ford Mustang IIs and Pintos.
Not Yet Reviewed
$10.99
Get a leak-free fit with OMIX-ADA crankshaft oil seals. They are direct-fit replacements available for several models of Jeep. They offer a tight seal and the confidence that your oil won't escape! Got spots on your driveway? Replace your old seals with the perfect fit and function of OMIX-ADA crankshaft oil seals.
( 1 )
$32.99
Mopar Replacement rear main seals offer high-quality, along with an original equipment fit and function to keep your favorite Chrysler, Dodge, or Jeep rolling down any road you choose to travel. These seals are made from quality OE materials to deliver the best leak-free seal, and peace of mind, Choose genuine Mopar Replacement rear main seals for a hassle-free install and the performance you expect.
( 2 )
$37.99
Clearance
Keep your oil where it belongs with SCE rear main seal cover gaskets. They provide the precision fit that you want at a price you can afford, plus the durability to last. SCE rear main seal cover gaskets prevent your oil from escaping and leaking onto the pavement, splattering your transmission in a gooey mess!
Not Yet Reviewed
$16.20
$9.50
The essential function of oil seals is to maintain smooth operation and prevent leaks by creating a tight barrier and ensuring that lubricants and fluids stay contained. Ajusa rear main bearing seals are meticulously designed for various vehicle applications, using premium materials to keep fluids in and contaminants out. Drive with confidence and peace of mind; select the bearing seals designed for your vehicle.
Not Yet Reviewed
$7.99
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$99.99
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