Availability
1998 GMC Gaskets & Seals
Differential Cover Gasket, Performance, Victocore, Dana 80, Each
Part Number: SDH-RD51997
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Head Gasket, Copper, 4.630 in. Bore, 0.059 in. Thickness, Chevy, Mark 4 Big Block, Each
Part Number: SCE-M136359
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Differential Pinion Seal, Front, Nitrile, Chevy, GMC, Each
Part Number: TMK-8622
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Head Gaskets, Titan, Copper, 4.320 in. Bore, .050 in. Compressed Thickness, Chevy, Big Block, Each
Part Number: SCE-T133250
Estimated Ship Date: Apr 8, 2026 if ordered today
Estimated Ship Date: Apr 8, 2026 if ordered today
Rear Main Seal, 2-Piece, Viton®, Chevrolet, Big Block, Each
Part Number: SCE-21305R
Not Yet Reviewed
Estimated Ship Date: Apr 9, 2026 if ordered today
Estimated Ship Date: Apr 9, 2026 if ordered today
Exhaust Gasket, Manifold, Steel Core Laminate, Chevy, 4.3L, Set
Part Number: FEL-MS95842
Estimated Ship Date: Today
Estimated Ship Date: Today
Gaskets, Timing Cover, Molded Rubber, Chevy, Big Block, Kit
Part Number: MAH-JV1183
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Differential Cover Gasket, Paper, GM 8.5/8.625 in., Each
Part Number: MGR-3993593
Estimated Ship Date: Today
Estimated Ship Date: Today
O-Ring, Universal, Each
Part Number: ADO-24100002
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Exhaust Gasket, Pro Copper Annealed, 1.875 in. x 1.875 in. Port, Chevy, Pair
Part Number: SCE-E11486
Estimated Ship Date: Apr 8, 2026 if ordered today
Estimated Ship Date: Apr 8, 2026 if ordered today
Estimated Ship Date: Today
Head Gaskets, MLS Spartan, 4.060 in. Bore, Multi-layer Stainless Steel, 0.039 in. Compressed Thickness, Chevrolet, Chevy Small Block, Each
Part Number: SCE-M110639
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Exhaust Gaskets, Pro Copper Embossed, 18 Degree Port, Chevy, Small Block, Pair
Part Number: SCE-4111
Estimated Ship Date: Today
Estimated Ship Date: Today
Gasket, Timing Cover, Cork/Rubber, Chevy, GMC/Hummer, 6.2/6.5L, Diesel, V8, Kit
Part Number: FEL-TCS45686
Estimated Ship Date: Today
Estimated Ship Date: Today
Automatic Transmission Oil Rings, Turbine Shaft Seals, PTFE®, Chevrolet, THM700-R4, 4L60, MD8, 4L65E, 4L70E, Each
Part Number: ADO-8667035
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Head Gasket, Copper, 4.630 in. Bore, 0.032 in. Thickness, Chevy, Mark 4 Big Block, Each
Part Number: SCE-P136232
Not Yet Reviewed
Estimated Ship Date: Apr 6, 2026 if ordered today
Estimated Ship Date: Apr 6, 2026 if ordered today
Estimated Ship Date: Today
Head Gaskets, MLS Spartan, 4.630 in. Bore, Multi-layer Stainless Steel, 0.039 in. Compressed Thickness, Chevrolet, Chevy Big Block, Each
Part Number: SCE-M136339
Not Yet Reviewed
Estimated Ship Date: Apr 8, 2026 if ordered today
Estimated Ship Date: Apr 8, 2026 if ordered today
Timing Cover Seals, ACDelco Crankshaft Front Seals, Multi-Purpose Seal, Buick, Cadillac, Chevy, GMC, Hummer, Isuzu, Oldsmobile, Saab, Each
Part Number: ADO-4762N
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Exhaust Flange Gasket, Composite, Chevy, GMC, Each
Part Number: WLK-31618
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Head Gaskets, Titan Copper, 4.570 in. Bore, 0.072 in. Compressed Thickness, Chevrolet, Big Block Mark IV, Each
Part Number: SCE-T135772
Not Yet Reviewed
Estimated Ship Date: Apr 8, 2026 if ordered today
Estimated Ship Date: Apr 8, 2026 if ordered today
Need It Sooner? We recommend these similar substitute parts:
Head Gasket, Copper, 4.200 in. Bore, 0.050 in. Thickness, Chevy, LT Small Block, Each
Part Number: SCE-P112050
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Head Gaskets, Pro Copper, 4.630 in. Bore, 0.093 in. Compressed Thickness, No Water Holes, Chevrolet, Big Block Mark IV, Each
Part Number: SCE-P136293NW
Not Yet Reviewed
Estimated Ship Date: Apr 8, 2026 if ordered today
Estimated Ship Date: Apr 8, 2026 if ordered today
Timing Cover Gasket, Silicone Rubber, Chevrolet, GMC, 7.4L, Each
Part Number: ADO-10198910
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Gaskets, Oil Filter Adapter, Buick, Cadillac, Chevy, GMC, Oldsmobile, Pontiac, Jeep, Kit
Part Number: RNB-82560
Estimated Ship Date: Today
Estimated Ship Date: Today
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