2003 Engines & Components

VALVE-EXH

Part Number: ADO-12550909

Not Yet Reviewed

Estimated Ship Date: Dec 3, 2025 if ordered today

• $20.00 Summit Bucks
• Special Order

Main Bearings, GM Genuine Parts Crankshaft Main Bearings, Direct Replacement, Buick, Cadillac, Chevy, GMC, Oldsmobile, Pontiac, Sold as a Set

Part Number: ADO-12480252

Not Yet Reviewed

Estimated Ship Date: Dec 3, 2025 if ordered today

• $20.00 Summit Bucks
• Special Order

Piston Rings, GM Genuine Parts Piston Rings, 3.800 in. Bore, 1.2 mm, 1.5mm, 3.0mm Thickness, Buick, Chevy, Oldsmobile, Pontiac, Sold as a Single Set

Part Number: ADO-12480825

Not Yet Reviewed

Estimated Ship Date: Dec 3, 2025 if ordered today

• $20.00 Summit Bucks
• Special Order

Piston Rings, GM Genuine Parts Piston Rings, 3.504 in. Bore, 1.2 mm, 1.5 mm, 3.0 mm. Thickness, Chevy, Sold as Single Set

Part Number: ADO-12481987

Not Yet Reviewed

Estimated Ship Date: Dec 3, 2025 if ordered today

• $20.00 Summit Bucks
• Special Order

Oil Pump Pickups, GM Genuine Parts, Stock Oil Pan Style, Chevrolet, GMC, Oldsmobile, Each

Part Number: ADO-12555117

Not Yet Reviewed

Estimated Ship Date: Dec 3, 2025 if ordered today

• $20.00 Summit Bucks
• Special Order

HEAD,CYL

Part Number: ADO-12555630

Not Yet Reviewed

Estimated Ship Date: Dec 3, 2025 if ordered today

• Free Shipping
• $20.00 Summit Bucks
• Special Order

GUIDE,TMG CHAIN

Part Number: ADO-12556023

Not Yet Reviewed

Estimated Ship Date: Dec 3, 2025 if ordered today

• $20.00 Summit Bucks
• Special Order

Engine Oil Filler Tube, Engine Oil Filler Tube, TUBE-OIL FIL

Part Number: ADO-12574386

Not Yet Reviewed

• $20.00 Summit Bucks
• Special Order

TUBE ASM-OIL LVL IND

Part Number: ADO-12574388

Not Yet Reviewed

Estimated Ship Date: Dec 3, 2025 if ordered today

• $20.00 Summit Bucks
• Special Order

Accessory Belts, Serpentine, 6-rib, 81.50 in. Length, Cadillac, Oldsmobile, Pontiac, Each

Part Number: ADO-12575425

Not Yet Reviewed

Estimated Ship Date: Dec 3, 2025 if ordered today

• $20.00 Summit Bucks
• Special Order

BRACKET ASM-P/S PUMP

Part Number: ADO-12554522

Not Yet Reviewed

Estimated Ship Date: Dec 3, 2025 if ordered today

• Free Shipping
• $20.00 Summit Bucks
• Special Order

Accessory Belt Tensioner, Smooth Pulley, Buick, Cadillac, Oldsmobile, Pontiac, Each

Part Number: ADO-12557838

Not Yet Reviewed

Estimated Ship Date: Dec 3, 2025 if ordered today

• $20.00 Summit Bucks
• Special Order

HEAD ASM-CYL

Part Number: ADO-12558112

Not Yet Reviewed

Estimated Ship Date: Dec 3, 2025 if ordered today

• Free Shipping
• $20.00 Summit Bucks
• Special Order

VALVE-EXH (STD)

Part Number: ADO-12558849

Not Yet Reviewed

Estimated Ship Date: Dec 3, 2025 if ordered today

• $20.00 Summit Bucks
• Special Order

SPRING,VLV

Part Number: ADO-12565199

Not Yet Reviewed

Estimated Ship Date: Dec 3, 2025 if ordered today

• $20.00 Summit Bucks
• Special Order

SPRING-VLV

Part Number: ADO-12565763

Not Yet Reviewed

Estimated Ship Date: Dec 3, 2025 if ordered today

• $20.00 Summit Bucks
• Special Order

Pushrods, Valvetrain, GM Genuine Parts Pushrods, 3/8 in. Diameter, 8.116 in. Length, Chevy, Each

Part Number: ADO-12556295

Not Yet Reviewed

Estimated Ship Date: Dec 3, 2025 if ordered today

• $20.00 Summit Bucks
• Special Order

Engine Rocker Arm Ball, Engine Rocker Arm Ball, BALL-VLV RKR ARM

Part Number: ADO-12556299

Not Yet Reviewed

Estimated Ship Date: Dec 3, 2025 if ordered today

• $20.00 Summit Bucks
• Special Order

GUIDE,VLV LFTR PUSH ROD

Part Number: ADO-12551431

Not Yet Reviewed

Estimated Ship Date: Dec 3, 2025 if ordered today

• $20.00 Summit Bucks
• Special Order

Valve Covers, Replacement, Stock, Cast Aluminum, Black, Chevrolet, GMC, 8.1L, Each

Part Number: ADO-12570555

Not Yet Reviewed

Estimated Ship Date: Dec 3, 2025 if ordered today

• Free Shipping
• $20.00 Summit Bucks
• Special Order

TUBE ASM-OIL FIL

Part Number: ADO-12570623

Not Yet Reviewed

Estimated Ship Date: Dec 3, 2025 if ordered today

• $20.00 Summit Bucks
• Special Order

ROD,CONN (MCHG W/ CAP)

Part Number: ADO-12574879

Not Yet Reviewed

Estimated Ship Date: Dec 3, 2025 if ordered today

• $20.00 Summit Bucks
• Special Order

GUIDE,TMG CHAIN

Part Number: ADO-12575159

Not Yet Reviewed

Estimated Ship Date: Dec 3, 2025 if ordered today

• $20.00 Summit Bucks
• Special Order

Accessory Belts, Serpentine, 6-rib, 87.01 in. Length, Chevrolet, Oldsmobile, Pontiac, Each

Part Number: ADO-12578869

Not Yet Reviewed

Estimated Ship Date: Dec 3, 2025 if ordered today

• $20.00 Summit Bucks
• Special Order

INDICATOR ASM-OIL LVL

Part Number: ADO-12580068

Not Yet Reviewed

Estimated Ship Date: Dec 3, 2025 if ordered today

• Oversize $7.99
• $20.00 Summit Bucks
• Special Order