Rear Main Seal Adapters - Free Shipping on Orders Over $109 at Summit Racing

Allstar Performance Small Block Rear Main Seal Adapters ALL26126

Seal Adapter, Billet Aluminum, 1 to 2-Piece Style, Chevy, Small Block Gen I, Kit

Part Number: AAF-ALL26126

4.5 out of 5 stars ( 4 )

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

Allstar Performance Small Block Rear Main Seal Adapters ALL26125

Seal Adapter, Billet Aluminum, 1 to 2-Piece Style, Chevy, Small Block Gen I, Kit

Part Number: AAF-ALL26125

4.5 out of 5 stars ( 4 )

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

Stef's Rear Main Seal Adapter Kits 7035

Seal Adapter, Billet Aluminum, 1 to 2-Piece, Chevy, 7.4L, Each

Part Number: STF-7035

3.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

Stef's Rear Main Seal Adapter Kits 7036

Rear Main Seal Adapter - Big Block Chevy

Part Number: STF-7036

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

Moroso Rear Main Seal Adapter Kits 38315

Seal Adapter, Billet Aluminum, 1 to 2-Piece Style, Chevy, Small Block Gen I, Each

Part Number: MOR-38315

5.0 out of 5 stars ( 6 )

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

Canton Racing SBC Rear Main Seal Adapters 21-850

Canton Racing SBC Rear Main Seal Adapters 21-850

Seal Adapter, Billet Aluminum, 1 to 2-Piece Style, Chevy, Small Block Gen I, Kit

Part Number: CTR-21-850

Not Yet Reviewed

Estimated Ship Date: Jan 20, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 20, 2026 if ordered today

Moroso Rear Main Seal Adapter Kits 38415

Seal Adapter, Billet Aluminum, 1 to 2-Piece Style, Chevy, Small Block Gen I, Each

Part Number: MOR-38415

3.5 out of 5 stars ( 2 )

Estimated Ship Date: Jan 9, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 9, 2026 if ordered today

Engine Works Small Block Rear Main Seal Adapters 350ERMSA

Seal Adapter, Billet Aluminum, 1 to 2-Piece Style, Chevy, Small Block Gen I, Kit

Part Number: EW1-350ERMSA

Not Yet Reviewed

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

Engine Works Small Block Rear Main Seal Adapters 350LRMSA

Seal Adapter, Billet Aluminum, 1 to 2-Piece Style, Chevy, Small Block Gen I, Kit

Part Number: EW1-350LRMSA

Not Yet Reviewed

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

Philadelphia Racing Products Rear Main Seal Adapters PRP-8571

Billet Main Seal Covers, Clear Billet LS Rear Main Seal Cover

Part Number: PGP-PRP-8571

Not Yet Reviewed

Estimated Ship Date: Jan 14, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 14, 2026 if ordered today

Philadelphia Racing Products Rear Main Seal Adapters PRP-8576

Billet Main Seal Covers, Black Billet LS Rear Main Seal Cover

Part Number: PGP-PRP-8576

Not Yet Reviewed

Estimated Ship Date: Jan 14, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 14, 2026 if ordered today

Eagle Specialty Products Rear Main Seal Adapters EAG500

Engine Crankshaft Seal Adapter, Chvrolet Big Block 1pc rear seal adapter to use 2pc rear seal crank.

Part Number: ESP-EAG500

Not Yet Reviewed

Estimated Ship Date: Feb 6, 2026 if ordered today

...Loading

Estimated Ship Date: Feb 6, 2026 if ordered today