Engines & Components

Pistons, GM Genuine Parts Pistons, 3.350 in. Bore, 1.2 mm 1.5 mm 2.5 mm Ring Thickness, Chevy, Oldsmobile, Pontiac, Saturn, Each

Part Number: ADO-12591087

Not Yet Reviewed

Estimated Ship Date: Jan 19, 2026 if ordered today

• $20 Summit Bucks
• Special Order

Accessory Belt Tensioner, Serpentine, 6-rib, Buick, Chevy, Pontiac, Saturn, Each

Part Number: ADO-12603527

Not Yet Reviewed

Estimated Ship Date: Jan 19, 2026 if ordered today

• Free Shipping
• $20 Summit Bucks
• Special Order

CAMSHAFT ASM

Part Number: ADO-12633925

Not Yet Reviewed

Estimated Ship Date: Jan 19, 2026 if ordered today

• Free Shipping
• $20 Summit Bucks
• Special Order

PUMP ASM-OIL

Part Number: ADO-12674460

Not Yet Reviewed

Estimated Ship Date: Jan 19, 2026 if ordered today

• Free Shipping
• $20 Summit Bucks
• Special Order

Valve Covers, Replacement, Stock, Cast Aluminum, Natural, Chevrolet, GMC, 6.6L Diesel, Each

Part Number: ADO-12677065

Not Yet Reviewed

Estimated Ship Date: Jan 19, 2026 if ordered today

• Free Shipping
• $20 Summit Bucks
• Special Order

TANK ASM-ENG OIL

Part Number: ADO-12611804

Not Yet Reviewed

Estimated Ship Date: Jan 19, 2026 if ordered today

• Free Shipping
• $20 Summit Bucks
• Special Order

HEAD ASM-CYL

Part Number: ADO-12629342

Not Yet Reviewed

Estimated Ship Date: Jan 19, 2026 if ordered today

• Free Shipping
• $20 Summit Bucks
• Special Order

CAMSHAFT ASM

Part Number: ADO-12638804

Not Yet Reviewed

Estimated Ship Date: Jan 19, 2026 if ordered today

• Free Shipping
• $20 Summit Bucks
• Special Order

Pistons, GM Genuine Parts Pistons, 4.090 in. Bore, 3.00 mm. 2.00 mm. 4.00 mm. Ring Grooves, Chevy, GMC, Each

Part Number: ADO-12550062

Not Yet Reviewed

Estimated Ship Date: Jan 19, 2026 if ordered today

• Free Shipping
• $20 Summit Bucks
• Special Order

Valve Covers, Replacement, Stock, Baffled, Steel, Gloss Black, Cadillac, Chevrolet, GMC, Pontiac, Each

Part Number: ADO-12555271

Not Yet Reviewed

Estimated Ship Date: Jan 19, 2026 if ordered today

• $20 Summit Bucks
• Special Order

ACTUATOR ASM-CM/SHF POSN

Part Number: ADO-12689341

Not Yet Reviewed

Estimated Ship Date: Jan 19, 2026 if ordered today

• Free Shipping
• $20 Summit Bucks
• Special Order

PISTON KIT,ENG

Part Number: ADO-12725753

Not Yet Reviewed

Estimated Ship Date: Jan 19, 2026 if ordered today

• Oversize $15.99
• $20 Summit Bucks
• Special Order

VALVE ASM-FUEL PRESS RLF

Part Number: ADO-12731369

Not Yet Reviewed

Estimated Ship Date: Jan 19, 2026 if ordered today

• Free Shipping
• $20 Summit Bucks
• Special Order

COVER,INT MANIF

Part Number: ADO-12654141

Not Yet Reviewed

Estimated Ship Date: Jan 19, 2026 if ordered today

• Free Shipping
• $20 Summit Bucks
• Special Order

Oil Pans, GM Genuine Parts Oil Pans, Aluminum, Stock Depth, Cadillac, Chevy, Each

Part Number: ADO-12658512

Not Yet Reviewed

Estimated Ship Date: Jan 19, 2026 if ordered today

• Free Shipping
• $20 Summit Bucks
• Special Order

CAMSHAFT ASM-INT

Part Number: ADO-12668546

Not Yet Reviewed

Estimated Ship Date: Jan 19, 2026 if ordered today

• Free Shipping
• $20 Summit Bucks
• Special Order

Engine Timing Chain Tensioner

Part Number: ADO-12691836

Not Yet Reviewed

Estimated Ship Date: Jan 19, 2026 if ordered today

• Free Shipping
• $20 Summit Bucks
• Special Order

Oil Pans, GM Genuine Parts Oil Pans, Center Sump, Alumminum, Stock Depth, Chevy, Each

Part Number: ADO-12666371

Not Yet Reviewed

Estimated Ship Date: Jan 19, 2026 if ordered today

• Free Shipping
• $20 Summit Bucks
• Special Order

CAMSHAFT ASM-INT

Part Number: ADO-12684808

Not Yet Reviewed

Estimated Ship Date: Jan 19, 2026 if ordered today

• Free Shipping
• $20 Summit Bucks
• Special Order

COVER ASM-CM/SHF

Part Number: ADO-12701660

Not Yet Reviewed

Estimated Ship Date: Jan 19, 2026 if ordered today

• Free Shipping
• $20 Summit Bucks
• Special Order

VALVE-EGR

Part Number: ADO-12713478

Not Yet Reviewed

Estimated Ship Date: Jan 19, 2026 if ordered today

• Free Shipping
• $20 Summit Bucks
• Special Order

BALANCER ASM-CR/SHF

Part Number: ADO-12730508

Not Yet Reviewed

Estimated Ship Date: Jan 19, 2026 if ordered today

• Free Shipping
• $20 Summit Bucks
• Special Order

Oil Pans, GM Genuine Parts Oil Pans, Center Sump, Aluminum, Stock Depth, Buick, Each

Part Number: ADO-12647251

Not Yet Reviewed

Estimated Ship Date: Jan 19, 2026 if ordered today

• Free Shipping
• $20 Summit Bucks
• Special Order

Camshaft Phasers, Variable Valve Timing Assemblies, Sintered Metal, Chevrolet, GMC, Buick, SAAB, Isuzu, 4.2L, Each

Part Number: ADO-12580314

Not Yet Reviewed

Estimated Ship Date: Jan 19, 2026 if ordered today

• Free Shipping
• $20 Summit Bucks
• Special Order

Oil Pans, GM Genuine Parts Oil Pans, Rear Sump, Aluminum, Stock Depth, Buick, Chevy, Pontiac, Saturn, Each

Part Number: ADO-12603201

Not Yet Reviewed

Estimated Ship Date: Jan 19, 2026 if ordered today

• Free Shipping
• $20 Summit Bucks
• Special Order