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

Estimated Ship Date: Monday 11/24/2025

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Estimated Ship Date: Monday 11/24/2025

Cometic MLS Head Gaskets C5475-027

Cometic MLS Head Gaskets C5475-027

Head Gasket, 3.910 in. Bore, .027 in. Compressed Thickness, Chevy, LS, 5.7, Each

Part Number: CGT-C5475-027

Not Yet Reviewed

Estimated Ship Date: Monday 11/24/2025

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Estimated Ship Date: Monday 11/24/2025

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 )

Estimated Ship Date: Monday 11/24/2025

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Estimated Ship Date: Monday 11/24/2025

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 )

Estimated Ship Date: Monday 11/24/2025

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Estimated Ship Date: Monday 11/24/2025

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 )

Estimated Ship Date: Monday 11/24/2025

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Estimated Ship Date: Monday 11/24/2025

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 )

Estimated Ship Date: Monday 11/24/2025

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Estimated Ship Date: Monday 11/24/2025

Cometic MLS Head Gaskets C5477-066

.066" MLS-5 HEAD GASKET

Part Number: CGT-C5477-066

Not Yet Reviewed

Estimated Ship Date: Monday 11/24/2025

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Estimated Ship Date: Monday 11/24/2025

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

Not Yet Reviewed

Estimated Ship Date: Monday 11/24/2025

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Estimated Ship Date: Monday 11/24/2025

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 )

Estimated Ship Date: Monday 11/24/2025

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Estimated Ship Date: Monday 11/24/2025

Cometic Head Gaskets C15361-060

HEAD GASKET

Part Number: CGT-C15361-060

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 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

Estimated Ship Date: Monday 11/24/2025

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Estimated Ship Date: Monday 11/24/2025

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

Not Yet Reviewed

Estimated Ship Date: Monday 11/24/2025

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Estimated Ship Date: Monday 11/24/2025

Cometic MLS Head Gaskets C5489-062

Head Gasket, MLS, 4.100 in. Bore, .062 in. Compressed Thickness, Chevy, Each

Part Number: CGT-C5489-062

Not Yet Reviewed

Estimated Ship Date: Monday 11/24/2025

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Estimated Ship Date: Monday 11/24/2025

AP Exhaust Flange Gaskets 8408

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

Part Number: APH-8408

Not Yet Reviewed

Estimated Ship Date: Monday 11/24/2025

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Estimated Ship Date: Monday 11/24/2025

Yukon Gear & Axle Pinion Seals YMS710506

Pinion Seal, GM 8.5, 8.6, Each

Part Number: YGA-30163

Not Yet Reviewed

Estimated Ship Date: Monday 11/24/2025

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Estimated Ship Date: Monday 11/24/2025

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

Estimated Ship Date: Monday 11/24/2025

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Estimated Ship Date: Monday 11/24/2025

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

Estimated Ship Date: Monday 11/24/2025

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Estimated Ship Date: Monday 11/24/2025

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 )

Estimated Ship Date: Monday 11/24/2025

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Estimated Ship Date: Monday 11/24/2025

Cometic MLS Head Gaskets C5318-075

Head Gasket, MLS, 4.160 in. Bore, .075 in. Compressed Thickness, Chevy, Each

Part Number: CGT-C5318-075

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

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 )

Estimated Ship Date: Monday 11/24/2025

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Estimated Ship Date: Monday 11/24/2025

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

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

Estimated Ship Date: Monday 11/24/2025

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Estimated Ship Date: Monday 11/24/2025

Cometic HTS Exhaust Manifold Gaskets C15193HTS

.060" HTS EXHAUST GASKETS

Part Number: CGT-C15193HTS

Not Yet Reviewed

Estimated Ship Date: Monday 11/24/2025

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Estimated Ship Date: Monday 11/24/2025