GMC SIERRA 2500 HD Gaskets & Seals - Free Shipping on Orders Over $109 at Summit Racing

ACDelco Engine Valve Stem Oil Seals 12689006

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

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Estimated Ship Date: Dec 31, 2025 if ordered today

ACDelco Engine Valve Stem Oil Seals 12689007

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

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Estimated Ship Date: Dec 31, 2025 if ordered today

ACDelco GM Genuine Parts Valve Cover Gaskets 12691860

Valve Cover Gaskets, GM Genuine Parts, Chevrolet, GMC, 6.6L Diesel, Each

Part Number: ADO-12691860

Not Yet Reviewed

Estimated Ship Date: Dec 18, 2025 if ordered today

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Estimated Ship Date: Dec 18, 2025 if ordered today

ACDelco Turbocharger Gaskets 12691866

GASKET-TURBO OIL FEED PIPE

Part Number: ADO-12691866

Not Yet Reviewed

Estimated Ship Date: Dec 18, 2025 if ordered today

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Estimated Ship Date: Dec 18, 2025 if ordered today

ACDelco Oil Cooler Gaskets and Seals 12665548

GASKET-ENG OIL CLR

Part Number: ADO-12665548

Not Yet Reviewed

Estimated Ship Date: Dec 31, 2025 if ordered today

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Estimated Ship Date: Dec 31, 2025 if ordered today

ACDelco Timing Cover Seals 12658507

SEAL-FLYWHL HSG TO ENG

Part Number: ADO-12658507

Not Yet Reviewed

Estimated Ship Date: Dec 22, 2025 if ordered today

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Estimated Ship Date: Dec 22, 2025 if ordered today

ACDelco EGR Gaskets 12658509

EGR Gaskets, Replacement, EGR Cooler Bypass Valve Gasket, Chevrolet, GMC, Each

Part Number: ADO-12658509

Not Yet Reviewed

Estimated Ship Date: Dec 18, 2025 if ordered today

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Estimated Ship Date: Dec 18, 2025 if ordered today

Dorman Oil Pan Drain Plug Gaskets 097-836CD

Rubber Drain Plug Gasket, Fits M12 (20Mm Od)

Part Number: RNB-097-836CD

Not Yet Reviewed

Estimated Ship Date: Dec 29, 2025 if ordered today

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Estimated Ship Date: Dec 29, 2025 if ordered today

Dorman Oil Cooler Gaskets and Seals 66218

OIL COOLER GASKET

Part Number: RNB-66218

Not Yet Reviewed

Estimated Ship Date: Dec 29, 2025 if ordered today

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Estimated Ship Date: Dec 29, 2025 if ordered today

ACDelco Turbocharger Gaskets 12737100

GASKET-TURBO OIL RTN PIPE

Part Number: ADO-12737100

Not Yet Reviewed

Estimated Ship Date: Dec 18, 2025 if ordered today

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Estimated Ship Date: Dec 18, 2025 if ordered today

ACDelco Water Neck Gaskets and O-Rings 12737097

GASKET-THERM BYPASS PIPE

Part Number: ADO-12737097

Not Yet Reviewed

Estimated Ship Date: Dec 29, 2025 if ordered today

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Estimated Ship Date: Dec 29, 2025 if ordered today

Standard Motor EGR Valve Mounting Gaskets VG120

EGR Misc

Part Number: SMP-VG120

Not Yet Reviewed

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Standard Motor EGR Valve Mounting Gaskets VG199

EGR Misc

Part Number: SMP-VG199

Not Yet Reviewed

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MAHLE Original EGR Gaskets G33751

EGR Valve Gasket, 20-17 Chevrolet Silverado 2500 HD, Silverado 3500 HD, 6.6L; 20-17 GMC Sierra 2500 HD, Sierra 3500 HD, 6.6L

Part Number: MAH-G33751

Not Yet Reviewed

Estimated Ship Date: Jan 9, 2026 if ordered today

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Estimated Ship Date: Jan 9, 2026 if ordered today

ACDelco Engine Valve Stem Oil Seals 12533586

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

Part Number: ADO-12533586

Not Yet Reviewed

Estimated Ship Date: Jan 6, 2026 if ordered today

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Estimated Ship Date: Jan 6, 2026 if ordered today

ACDelco Engine Valve Stem Oil Seals 12624396

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

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Estimated Ship Date: Dec 31, 2025 if ordered today

ACDelco Oil Filter Adapter Gaskets 12580720

Engine Oil Filter Adapter Gasket

Part Number: ADO-12580720

Not Yet Reviewed

Estimated Ship Date: Jan 7, 2026 if ordered today

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Estimated Ship Date: Jan 7, 2026 if ordered today

ACDelco GM Genuine Parts Valve Cover Gaskets 12628569

Valve Cover Gasket, ACM Rubber, Duramax Diesel, Each

Part Number: ADO-12628569

Not Yet Reviewed

Estimated Ship Date: Jan 7, 2026 if ordered today

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Estimated Ship Date: Jan 7, 2026 if ordered today

ACDelco GM Genuine Parts Turbocharger Inlet Gaskets 12627913

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

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Estimated Ship Date: Dec 31, 2025 if ordered today

ACDelco Oil Cooler Gaskets and Seals 12631281

Engine Oil Cooler Seal

Part Number: ADO-12631281

Not Yet Reviewed

Estimated Ship Date: Jan 7, 2026 if ordered today

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Estimated Ship Date: Jan 7, 2026 if ordered today

Fel-Pro Water Neck Gaskets 35757

Water Neck Gaskets and O-Rings, Composite/Rubber Seal, Crossover Pipe Gasket, Chevrolet, GMC, Hummer, 6.6L Diesel, Each

Part Number: FEL-35757

Not Yet Reviewed

Estimated Ship Date: Dec 30, 2025 if ordered today

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Estimated Ship Date: Dec 30, 2025 if ordered today

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ACDelco Water Neck and Thermostat Housing Seals 97223686

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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ACDelco Oil Seals 29531293

SEAL,1-2-3-4 CLU PSTN INR (O-RING)

Part Number: ADO-29531293

Not Yet Reviewed

Estimated Ship Date: Dec 18, 2025 if ordered today

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Estimated Ship Date: Dec 18, 2025 if ordered today

ACDelco O-Rings 55492934

SEAL-COMBUSTION F/INJR

Part Number: ADO-55492934

Not Yet Reviewed

Estimated Ship Date: Jan 5, 2026 if ordered today

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Estimated Ship Date: Jan 5, 2026 if ordered today

ACDelco GM Genuine Parts Timing Cover Seals 12594339

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

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Estimated Ship Date: Jan 2, 2026 if ordered today

ACDelco Oil Seals 29542808

SEAL,4-5-6 CLU PSTN INR (O-RING)

Part Number: ADO-29542808

Not Yet Reviewed

Estimated Ship Date: Dec 18, 2025 if ordered today

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Estimated Ship Date: Dec 18, 2025 if ordered today