GMC SIERRA 2500 HD Gaskets & Seals

Engine Valve Stem Oil Seal, Engine Valve Stem Oil Seal, SEAL ASM-VLV STEM OIL

Part Number: ADO-12633926

Not Yet Reviewed

Estimated Ship Date: Dec 31, 2025 if ordered today

• $20 Summit Bucks
• Special Order

Engine Valve Stem Oil Seal, Engine Valve Stem Oil Seal, SEAL-EXH VLV STEM OIL

Part Number: ADO-12689006

Not Yet Reviewed

Estimated Ship Date: Dec 31, 2025 if ordered today

• $20 Summit Bucks
• Special Order

Engine Valve Stem Oil Seal, Engine Valve Stem Oil Seal, SEAL-INT VLV STEM OIL

Part Number: ADO-12689007

Not Yet Reviewed

Estimated Ship Date: Dec 31, 2025 if ordered today

• $20 Summit Bucks
• Special Order

Engine Valve Stem Oil Seal, Engine Valve Stem Oil Seal, SEAL-VLV STEM OIL

Part Number: ADO-12624396

Not Yet Reviewed

Estimated Ship Date: Dec 31, 2025 if ordered today

• $20 Summit Bucks
• Special Order

GASKET-ENG OIL CLR

Part Number: ADO-12665548

Not Yet Reviewed

Estimated Ship Date: Dec 31, 2025 if ordered today

• $20 Summit Bucks
• Special Order

Turbocharger Oil Line Gasket

Part Number: ADO-12627897

Not Yet Reviewed

Estimated Ship Date: Jan 5, 2026 if ordered today

• $20 Summit Bucks
• Special Order

GASKET-TURBO OIL RTN PIPE

Part Number: ADO-12642432

Not Yet Reviewed

Estimated Ship Date: Dec 31, 2025 if ordered today

• $20 Summit Bucks
• Special Order

GASKET-ENG OIL CLR ADAP

Part Number: ADO-12647254

Not Yet Reviewed

Estimated Ship Date: Dec 31, 2025 if ordered today

• $20 Summit Bucks
• Special Order

Gasket, Turbo Mouthpiece Inlet Seal, Black, Rubber, One Piece, Chevrolet, GMC, Each

Part Number: ADO-12627913

Not Yet Reviewed

Estimated Ship Date: Dec 31, 2025 if ordered today

• $20 Summit Bucks
• Special Order

Intake Manifold Gaskets, GM Genuine Parts Intake Manifold Gaskets, Rubber, .095 in. Thick, Chevy, GMC, Sold as a Set

Part Number: ADO-12642410

Not Yet Reviewed

Estimated Ship Date: Dec 31, 2025 if ordered today

• $20 Summit Bucks
• Special Order

GASKET-TURBO OIL RTN PIPE

Part Number: ADO-12642429

Not Yet Reviewed

Estimated Ship Date: Dec 31, 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

GASKET

Part Number: ADO-85132826

Not Yet Reviewed

Estimated Ship Date: Dec 30, 2025 if ordered today

• $20 Summit Bucks
• Special Order

SEAL,VLV RKR ARM CVR

Part Number: ADO-94420097

Not Yet Reviewed

Estimated Ship Date: Dec 18, 2025 if ordered today

• $20 Summit Bucks
• Special Order

GASKET-CTLTC CONV

Part Number: ADO-23252297

Not Yet Reviewed

Estimated Ship Date: Dec 18, 2025 if ordered today

• $20 Summit Bucks
• Special Order

Gasket, Engine Oil Pressure Relief Valve Gasket, GASKET,OIL PRESS RLF VLV (BACK OF FRONT COVER)

Part Number: ADO-94011695

Not Yet Reviewed

Estimated Ship Date: Dec 18, 2025 if ordered today

• $20 Summit Bucks
• Special Order

Turbocharger Oil Line Gasket

Part Number: ADO-12637218

Not Yet Reviewed

Estimated Ship Date: Jan 2, 2026 if ordered today

• $20 Summit Bucks
• Special Order

Engine Valve Stem Oil Seal Set, Engine Valve Stem Oil Seal Set, SEAL KIT,EXH VLV STEM OIL

Part Number: ADO-12457652

Not Yet Reviewed

Estimated Ship Date: Jan 5, 2026 if ordered today

• $20 Summit Bucks
• Special Order

Valve Cover Gaskets, ACDelco GM Genuine Parts Valve Cover Gaskets, One Piece, Lower Valve Cover Gasket, Chevy, GMC, Each

Part Number: ADO-97321295

Not Yet Reviewed

Estimated Ship Date: Jan 5, 2026 if ordered today

• $20 Summit Bucks
• Special Order

EGR Gasket

Part Number: FEL-73209

Not Yet Reviewed

Estimated Ship Date: Dec 29, 2025 if ordered today

• $20 Summit Bucks
• Special Order

SEAL-ENG OIL CLR-(OIL COOER CASE HALF SEAL)

Part Number: ADO-97358847

Not Yet Reviewed

Estimated Ship Date: Dec 31, 2025 if ordered today

• $20 Summit Bucks
• Special Order

Engine Gasket Set

Part Number: FEL-260-3199

Not Yet Reviewed

Estimated Ship Date: Dec 29, 2025 if ordered today

• Free Shipping
• $20 Summit Bucks
• Special Order

Timing Cover Seals, GM Genuine Parts, Cadillac, Chevrolet, GMC, Hummer, Each

Part Number: ADO-12594339

Not Yet Reviewed

Estimated Ship Date: Jan 2, 2026 if ordered today

• $20 Summit Bucks
• Special Order