2003 GMC SIERRA 1500 HD Transmissions

Bolts, Torque Converter, 10mm x 1.5, Steel, Natural, 0.887 in. UHL, Buick, Cadillac, Chevrolet, GMC, Isuzu, Oldsmobile, Pontiac, Saab, Set of 3

Part Number: RNB-14099

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Tomorrow

Flexplate Bolt, Steel, 11mm x 1.5, 1.000 in. UHL, For Use With 12563532 Flexplate Spacer, Chevy, Gen III, Each

Part Number: NAL-19257940

1.5 out of 5 stars ( 4 )

Estimated Ship Date: Tomorrow

Transmission Fluid Dipstick Components, Seals, Tube Grommet, Buick, Cadillac, Chevy, GMC, Hummer, Isuzu, Oldsmobile, Pontiac, Saab, Saturn, Each

Part Number: ADO-1259475

4.33 out of 5 stars ( 6 )

Estimated Ship Date: Tomorrow

Seal, Automatic Transmission Shift Shaft, Steel/Rubber, GM, Each

Part Number: NTL-8792S

3.67 out of 5 stars ( 3 )

Estimated Ship Date: Tomorrow

Automatic Transmission Shift Shaft Seal, Nitrile, Buick, Cadillac, Chevy, Each

Part Number: ADO-8792S

1.0 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

Vent, Transfer Case, Each

Part Number: ADO-25892279

Not Yet Reviewed

Estimated Ship Date: Tomorrow

Seal, Automatic Transmission Selector Shaft, Each

Part Number: TMK-8792S

5.0 out of 5 stars ( 6 )

Estimated Ship Date: Tomorrow

Transmission Vent Tubes, ACDelco GM Genuine Parts Transmission Vent Tubes, Steel, Silver, Buick, Cadillac, Chevrolet, GMC, Oldsmobile, Pontiac, Each

Part Number: ADO-24200374

Not Yet Reviewed

Estimated Ship Date: Tomorrow

Flexplate Bolt, Steel, Black Oxide, 10mm x 1.50 Thread, Hex, 1.400 in. Underhead, Chevrolet, Each

Part Number: NAL-11589040

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

Drain Plug, Steel, Stock Replacement, Each

Part Number: ADO-24233099

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

Transmission Bushing, Actual OD - 2.0245; Length - 0.995; Max Wall - 0.0673

Part Number: DUR-34005F

Not Yet Reviewed

Estimated Ship Date: Tomorrow

Parking Pawl Return Spring, Automatic Transmission, Stock Replacement, Chevrolet, GMC, Each

Part Number: ADO-24202611

Not Yet Reviewed

Estimated Ship Date: Tomorrow

clutch fork

Part Number: NAL-12479213

Not Yet Reviewed

Estimated Ship Date: Jun 8, 2026 if ordered today

• Drop Ship
• Special Order