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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.
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Rear Main Seals, Original, One-piece, Viton®, Chevy, Small Block LS, Each
Part Number: MAH-JV1657
Estimated Ship Date: Today
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Rear Main Seal, 1 Piece, Buick, Chevy, GMC, Pontiac, Saab, LS Engine, Each
Part Number: NAL-89060436
Estimated Ship Date: Today
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Rear Main Seals, Original, One-piece, PTFE Rubber, Chevy, Each
Part Number: MAH-JV1620
Not Yet Reviewed
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Rear Main Seal, 1-Piece, PTFE, Chrysler, Dodge, Jeep, Ram, Each
Part Number: MAH-JV1720
Estimated Ship Date: Today
Estimated Ship Date: Today
Rear Main Seal, 1-piece Style, Chevy, Each
Part Number: NAL-10088158
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Ford-Pass, Trk&Ind;Linc;Merc:370, 429, 460(68-94) Split Seal Option to JV730
Part Number: MAH-JV618
Estimated Ship Date: Today
Estimated Ship Date: Today
Rear Main Seal, Original, One-Piece, PTFE, Ford Style, Each
Part Number: MAH-JV1635
Estimated Ship Date: Today
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Ed;Ford-Pass, Trk&Ind;Merc:330, 332, 352, 359, 360, 361, 389, 390, 391, 406, 410, 427, 4
Part Number: MAH-JV707P
Estimated Ship Date: Today
Estimated Ship Date: Today
Ford-Pass, Trk&Ind;Merc:240, 300, 351W(65-94)
Part Number: MAH-JV1636
Not Yet Reviewed
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Ford-Pass&Trk;Linc;Merc:140,221,230,250,255,260,289,302(62-83) Split Seal O
Part Number: MAH-JV730R
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Rear Main Seal, Rubber, 2-Piece, Chevy, GMC, Each
Part Number: MAH-JV1627
Estimated Ship Date: Today
Estimated Ship Date: Today
Rope Packing Option to JV614, JV618, JV730P, JV730R
Part Number: MAH-JV730
Estimated Ship Date: Today
Estimated Ship Date: Today
Rear Main Seals, Original, One-piece, PTFE Rubber, Chevy, Each
Part Number: MAH-JV1634
Estimated Ship Date: Today
Estimated Ship Date: Today
Rear Main Seals, 2-piece, Rubber, Cadillac, Chevrolet, GMC, ISO, Each
Part Number: MAH-JV705
Estimated Ship Date: Today
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Rear Main Seals, 2-piece, Rope Seal Material, Chevrolet, Each
Part Number: MAH-JV688
Not Yet Reviewed
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Bui;Cad;Chev-Pass&Trk;GMC;Jeep;Olds;Pont:225,231,252,260,300,340,350,400,40
Part Number: MAH-JV742
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Engine Main Bearing Gasket Set, Engine Main Bearing Gasket Set
Part Number: MAH-JV728
Not Yet Reviewed
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Rear Main Seal, 1-Piece, Rubber, Chevy, Big Block, Each
Part Number: MAH-JV1614
Not Yet Reviewed
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Rear Main Cap O-Ring, Chevy, Big Block, Gen V, Gen VI, Each
Part Number: NAL-6264902
Estimated Ship Date: Today
Estimated Ship Date: Today
Main Seal, Ford 2-piece, 351C, 351W, 351M, 400M, Each
Part Number: MAH-JV614
Not Yet Reviewed
Estimated Ship Date: Today
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Rope Packing Option to JV707P & JV748
Part Number: MAH-JV707
Not Yet Reviewed
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Rear Main Seal, One-piece, Rubber, Avanti, Ford, Jaguar, Laforza, Lincoln, Mazda, Mercury, Merkur, Panoz, Qvale, Each
Part Number: MAH-JV523
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Rear Main Seals, Rear Crankshaft Oil Seals, One-piece, Chevrolet, GMC, 6.6L Diesel, Each
Part Number: ADO-97209342
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Ford-Pass, Trk&Ind;Merc:240, 300, 351W(65-94)
Part Number: MAH-JV611
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
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