$25 Off $250 / $50 Off $500, on Summit Racing Brand Products - Use Promo Code: BUILDIT

$25 Off $250 / $50 Off $500, on Summit Racing Brand Products - Use Promo Code: BUILDIT

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Mr. Gasket

Mr. Gasket Rear Main Seals

4.11 out of 5 stars 9 Customer Reviews

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.

Showing In Stock Items. Show All 7 Items.

Results 1 - 7 of 7

Mr. Gasket Rear Main Seals 1968

Mr. Gasket Rear Main Seals 1968

Mr. Gasket Rear Main Seals 1968

Rear Main Seal, 2-Piece, Chrysler, Big Block, 361-440, Each

Part Number: MRG-1968

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Today

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Mr. Gasket Rear Main Seals 1965

Mr. Gasket Rear Main Seals 1965

Mr. Gasket Rear Main Seals 1965

Rear Main Seal, 2-Piece, Ford, Oldsmobile, Big Block 385/V8, Each

Part Number: MRG-1965

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

Mr. Gasket Rear Main Seals 1971

Mr. Gasket Rear Main Seals 1971

Mr. Gasket Rear Main Seals 1971

Rear Main Seal, 2-piece, Viton®, Chevy, Small Block, Each

Part Number: MRG-1971

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Mr. Gasket Rear Main Seals 1960

Mr. Gasket Rear Main Seals 1960

Mr. Gasket Rear Main Seals 1960

Rear Main Seal, 2-Piece, Silicone, Chevy, Small Block, Each

Part Number: MRG-1960

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Today

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Mr. Gasket Rear Main Seals 1963

Mr. Gasket Rear Main Seals 1963

Mr. Gasket Rear Main Seals 1963

Rear Main Seal, 2-Piece, Ford, Lincoln, Mercury, Small Block, SBF, Each

Part Number: MRG-1963

2.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Mr. Gasket Rear Main Seals 30

Mr. Gasket Rear Main Seals 30

Mr. Gasket Rear Main Seals 30

Rear Main Seal, 1-Piece, Silicone, Ford, 5.0L, Each

Part Number: MRG-30

Not Yet Reviewed

Estimated Ship Date: Today

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Mr. Gasket Rear Main Seals 29

Mr. Gasket Rear Main Seals 29

Mr. Gasket Rear Main Seals 29

Rear Main Seal, 1-Piece, Chevy, Small Block, V8/90 Degree V6, Each

Part Number: MRG-29

Not Yet Reviewed

Estimated Ship Date: Dec 12, 2025 if ordered today

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Estimated Ship Date: Dec 12, 2025 if ordered today

Need It Sooner? We recommend these similar substitute parts:

SCE AccuSeal Pro Rear Main Seals 21155

SCE AccuSeal Pro Rear Main Seals 21155

Not Yet Reviewed

Estimated Ship Date: Today

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