2012 GMC SIERRA-1500 Gaskets & Seals

Timken Automatic Transmission Torque Converter Seals 4950

Seal, Torque Converter, Cadillac, Chevy, Isuzu, Saab, Each

Part Number: TMK-4950

Not Yet Reviewed

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Cometic MLS Head Gaskets C5475-070

Cometic MLS Head Gaskets C5475-070

.070" MLS-5 HEAD GASKET

Part Number: CGT-C5475-070

Not Yet Reviewed

Estimated Ship Date: Dec 1, 2025 if ordered today

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Estimated Ship Date: Dec 1, 2025 if ordered today

Fel-Pro Head Gaskets 9354 PT-1

Head Gasket, Steel Core Laminate, Chevy, Isuzu, GMC, Oldsmobile, Pontiac, 4.3L, V6, Each

Part Number: FEL-9354PT1

5.0 out of 5 stars ( 2 )

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Mahle Original Exhaust Pipe Flange Gaskets F31619

Exhaust Pipe Flange Gasket, Graphite, Buick, Cadillac, Chevrolet, GMC, Hummer, Isuzu, Saab, Each

Part Number: MAH-F31619

4.0 out of 5 stars ( 1 )

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Fel-Pro Differential Cover Gaskets RDS 55387

Differential Carrier Gasket, Fits GM Truck, 9.5 in. Ring Gear, 1/2 Ton, 3/4 Ton, 14-Bolts, Each

Part Number: FEL-RDS55387

4.6 out of 5 stars ( 10 )

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Fel-Pro Oil Cooler Mounting Gaskets and Seals 72462

Oil Cooler Gaskets, Gasket, Each

Part Number: FEL-72462

2.5 out of 5 stars ( 2 )

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Cometic MLS Head Gaskets C5477-066

.066" MLS-5 HEAD GASKET

Part Number: CGT-C5477-066

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ACDelco GM Genuine Parts Transmission Drain Plug Gaskets 12616850

Oil Pan Drain Plug Gaskets, Engine Oil, O-ring Style Seal, Rubber, Black, 2.65mm Thick, GM, Hummer, Isuzu, Saab, Saturn, Suzuki, Each

Part Number: ADO-12616850

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ACDelco GM Genuine Parts Cylinder Head Gaskets 12552362

Head Gasket, Graphite/Steel, 4.110 in. Bore, 0.030 in. Thickness, Chevy, GMC, Each

Part Number: ADO-12552362

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ACDelco GM Genuine Parts Differential Drive Pinion Gear Seals 26064029

Pinion Seal, Steel with Rubber Inner, GM 8.5, GM 8.6, 10-Bolt, Each

Part Number: ADO-26064029

1.0 out of 5 stars ( 1 )

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Cometic MLX Head Gaskets C5505-066

Head Gasket, MLX, 4.040 in. Bore, .066 in. Compressed Thickness, Chevy, Each

Part Number: CGT-C5505-066

Not Yet Reviewed

Estimated Ship Date: Jan 19, 2026 if ordered today

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Estimated Ship Date: Jan 19, 2026 if ordered today

Cometic MLS Head Gaskets C5317-032

Head Gasket, MLS, 4.130 in. Bore, .032 in. Compressed Thickness, Chevy, Each

Part Number: CGT-C5317-032

Not Yet Reviewed

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Fel-Pro Head Gaskets 510 SD

Head Gasket, PermaTorque Severe Duty, 4.125 in. Bore, 0.041 in. Compressed Thickness, Pontiac, Isuzu, Oldsmobile, Chevy, GMC, Each

Part Number: FEL-510SD

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AP Exhaust Flange Gaskets 8408

Exhaust Flange and Donut Gaskets, Exhaust Flange Gaskets, Cadillac, Chevrolet, GMC, Hummer, Each

Part Number: APH-8408

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Yukon Gear & Axle Pinion Seals YMS710506

Pinion Seal, GM 8.5, 8.6, Each

Part Number: YGA-30163

Not Yet Reviewed

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Mahle Original Valve Stem Seals SS45921

Valve Stem Seal, Metal with Molded Rubber, Hat Style, GM. LS Engine, Set of 8

Part Number: MAH-SS45921

Not Yet Reviewed

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Cometic MLS Head Gaskets C5475-030

Head Gasket, MLS, 3.910 in. Bore, .030 in. Compressed Thickness, Chevy, Each

Part Number: CGT-C5475-030

Not Yet Reviewed

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ACDelco Transmission Rear Seals 03764601

Transmission Rear Seals, Automatic Output Shaft Seal, Replacement, Rubber, GM, 4L60/4L65/4L70/700R4/MD8/TH350C/TH400, Each

Part Number: ADO-3764601

1.0 out of 5 stars ( 1 )

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Mahle Original Valve Stem Seals SS45920

Valve Stem Seals, Positive Stop, Rubber, Buick, Cadillac, Chevrolet, GMC, Hummer, Isuzu, Saab, Pontiac, Set of 8

Part Number: MAH-SS45920

Not Yet Reviewed

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Mahle Original Exhaust Pipe Flange Gaskets F31618

Exhaust Pipe Flange Gasket, Composite with Steel Core, Buick, Cadillac, Chevrolet, GMC, Hummer, Isuzu, Saab, Each

Part Number: MAH-F31618

Not Yet Reviewed

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Fel-Pro Water Pump Gaskets 13032

Gasket, Water Pump to Plate, Paper, Checker/Chevy, Small Block/V6, Each

Part Number: FEL-13032

3.0 out of 5 stars ( 3 )

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Cometic Head Gaskets C15361-036

GM LS1/LS2/LS3/LS6 Gen-3/4 Small Block V8 .036" MLS Cylinder Head Gasket, 3.810" Bore

Part Number: CGT-C15361-036

Not Yet Reviewed

Estimated Ship Date: Jan 19, 2026 if ordered today

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Estimated Ship Date: Jan 19, 2026 if ordered today

Cometic HTS Exhaust Manifold Gaskets C15193HTS

.060" HTS EXHAUST GASKETS

Part Number: CGT-C15193HTS

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Cometic MLS Head Gaskets C5751-098

Head Gasket, MLS, 4.060 in. Bore, .098 in. Compressed Thickness, Chevy, Each

Part Number: CGT-C5751-098

Not Yet Reviewed

Estimated Ship Date: Jan 19, 2026 if ordered today

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Estimated Ship Date: Jan 19, 2026 if ordered today

Mahle Original Head Gasket Sets HS54442C

GMC-TRK: 294(4.8L) Vin C 2007-2009, Vin A 2010-2013 GM-TRK (5.3L) Vin 4 20

Part Number: MAH-HS54442C

Not Yet Reviewed

Estimated Ship Date: Dec 23, 2025 if ordered today

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Estimated Ship Date: Dec 23, 2025 if ordered today