GMC SIERRA 2500 HD Gaskets & Seals

Rear Main Seal Housing, LS Engine Crankshaft Rear Seal Housing, Aluminum, Includes Seal and Gasket, Will not fit LSX, Each

Part Number: ADO-12639250

4.43 out of 5 stars ( 7 )

Estimated Ship Date: Today

• $20 Summit Bucks

Intake Manifold Gaskets, Buick, Cadillac, Chevy, GMC, Hummer, Isuzu, Saab, Pair

Part Number: ADO-89060413

5.0 out of 5 stars ( 5 )

Estimated Ship Date: Today

• $20 Summit Bucks

Transmission Pan Gaskets, GM OE, Chevrolet, GMC, Each

Part Number: ADO-8677743

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Today

• $20 Summit Bucks

Transmission Pan Gaskets, GM OE, Chevrolet, GMC, Each

Part Number: ADO-29549684

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

• $20 Summit Bucks

GASKET-CYL HD

Part Number: ADO-12688186

Not Yet Reviewed

Estimated Ship Date: Today

• $20 Summit Bucks

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

• $20 Summit Bucks

Timing Cover Seal, Front Crankshaft Seal, Gasket, O-Rings, Chevrolet, GMC, 6.6L, Duramax, Kit

Part Number: FEL-TCS45055

Not Yet Reviewed

Estimated Ship Date: Dec 26, 2025 if ordered today

• Drop Ship
• $20 Summit Bucks
• Special Order

Intake Manifold Gaskets, Composite, Chevy, 8.1L, Set

Part Number: ADO-89017539

Not Yet Reviewed

Estimated Ship Date: Dec 29, 2025 if ordered today

• $20 Summit Bucks
• Special Order

Head Gaskets, PermaTorque MLS, 4.145 in. Bore, Multi-layer Steel, 0.0370 in. Thickness, Right Side, Chevrolet, GMC, Hummer, 6.6L Diesel, Each

Part Number: FEL-26402PT

Not Yet Reviewed

Estimated Ship Date: Dec 29, 2025 if ordered today

• $20 Summit Bucks
• Special Order

Timing Cover Gasket, Rubber, Chevy, GMC, 8.1L, Each

Part Number: ADO-12556370

Not Yet Reviewed

Estimated Ship Date: Jan 5, 2026 if ordered today

• $20 Summit Bucks
• Special Order

Head Gasket, PermaTorqueMLS, 4.145 in. Bore, .037 in. Compressed Thickness, Chevy, GMC, Each

Part Number: FEL-26401PT

Not Yet Reviewed

Estimated Ship Date: Dec 26, 2025 if ordered today

• $20 Summit Bucks
• Special Order

Exh. Man. Gaskt Set

Part Number: FEL-MSB-92467

Not Yet Reviewed

Estimated Ship Date: Dec 29, 2025 if ordered today

• $20 Summit Bucks
• Special Order

Turbocharger Gasket, Installation Kit, Chevy, GMC, Hummer, Kit

Part Number: FEL-ES73047

Not Yet Reviewed

Estimated Ship Date: Dec 29, 2025 if ordered today

• $20 Summit Bucks
• Special Order

Head Gaskets, PermaTorque MLS, 4.145 in. Bore, Multi-layer Steel, 0.0470 in. Thickness, Right Side, Chevrolet, GMC, Hummer, 6.6L Diesel, Each

Part Number: FEL-26406PT

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Dec 26, 2025 if ordered today

• $20 Summit Bucks
• Special Order

Auto Trans Gasket Set

Part Number: ADO-24210955

Not Yet Reviewed

Estimated Ship Date: Jan 5, 2026 if ordered today

• $20 Summit Bucks
• Special Order

Head Gaskets, PermaTorque MLS, 4.145 in. Bore, Multi-layer Steel, 0.0470 in. Thickness, Left Side, Chevrolet, GMC, Hummer, 6.6L Diesel, Each

Part Number: FEL-26405PT

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Dec 29, 2025 if ordered today

• $20 Summit Bucks
• Special Order

GASKET

Part Number: ADO-85132826

Not Yet Reviewed

Estimated Ship Date: Dec 30, 2025 if ordered today

• $20 Summit Bucks
• Special Order

GASKET-CYL HD (GRADE "A")

Part Number: ADO-12676857

Not Yet Reviewed

Estimated Ship Date: Dec 23, 2025 if ordered today

• $20 Summit Bucks
• Special Order

GASKET-CYL HD (GRADE "B").

Part Number: ADO-12676858

Not Yet Reviewed

Estimated Ship Date: Dec 23, 2025 if ordered today

• $20 Summit Bucks
• Special Order

GASKET-CYL HD (GRADE "C").

Part Number: ADO-12676859

Not Yet Reviewed

Estimated Ship Date: Dec 23, 2025 if ordered today

• $20 Summit Bucks
• Special Order

HOUSING ASM-CR/SHF RR OIL SEAL

Part Number: ADO-12705664

Not Yet Reviewed

Estimated Ship Date: Dec 18, 2025 if ordered today

• $20 Summit Bucks
• Special Order

Head Gasket, GM OE, 4.180 in. Bore, Multi-Layer Steel, Chevy, GMC, Each

Part Number: ADO-98040128

Not Yet Reviewed

Estimated Ship Date: Dec 22, 2025 if ordered today

• $20 Summit Bucks
• Special Order

GASKET-CYL HD

Part Number: ADO-12727484

Not Yet Reviewed

Estimated Ship Date: Dec 22, 2025 if ordered today

• $20 Summit Bucks
• Special Order

GASKET-CYL HD

Part Number: ADO-12727485

Not Yet Reviewed

Estimated Ship Date: Dec 22, 2025 if ordered today

• $20 Summit Bucks
• Special Order

GASKET-CYL HD

Part Number: ADO-12727486

Not Yet Reviewed

Estimated Ship Date: Dec 22, 2025 if ordered today

• $20 Summit Bucks
• Special Order