2003 CADILLAC | Summit Racing

Spectre Performance Cold Air Intake Kits 9900

Air Intake, Polished Aluminum Tube, Red Filter, Cadillac, Chevy, GMC, Pickup, SUV, 4.8L, 5.3L, 6.0L, V8, Kit

Part Number: SPE-9900

4.57 out of 5 stars ( 133 )

Estimated Ship Date: Monday 4/27/2026 if shipped by air

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Estimated Ship Date: Monday 4/27/2026 if shipped by air

5w30 Royal Purple HPS High Performance Street Motor Oil 35530

Engine Oil, Synthetic, 5W30, HPS Street, 5 Gallons, Each

Part Number: RPO-35530

5.0 out of 5 stars ( 2 )

Cannot be shipped Internationally if shipped by air

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Cannot be shipped Internationally if shipped by air

10w30 Royal Purple HPS High Performance Street Motor Oil 35130

Engine Oil, Synthetic, 10W30, HPS Street, 5 Gallons, Each

Part Number: RPO-35130

5.0 out of 5 stars ( 1 )

Cannot be shipped Internationally if shipped by air

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Cannot be shipped Internationally if shipped by air

Earl's Performance Adjustable Coolant Crossover Tubes LS0035ERL

Water Pump Crossover, Billet Aluminum, -12 AN Female Inlets, -16 AN Male Outlet, Black Anodized, Adjustable, Each

Part Number: EAR-LS0035ERL

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 4/27/2026 if shipped by air

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Estimated Ship Date: Monday 4/27/2026 if shipped by air

Earl's Performance Adjustable Coolant Crossover Tubes LS0037ERL

Engine Coolant Crossover, Tube, Adjustable from 6.8 in. to 10.5 in., -12AN O-Ring Ports, Billet Aluminum, Black Anodized, Chevrolet, LS, Each

Part Number: EAR-LS0037ERL

Not Yet Reviewed

Estimated Ship Date: Monday 4/27/2026 if shipped by air

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Estimated Ship Date: Monday 4/27/2026 if shipped by air

Belltech Torsion Bar Keys 3921

Lowering Kit, Torsion Bar Keys, 1-3 in. Front, Chevy, GMC, Pickup, Pair

Part Number: BEL-3921

5.0 out of 5 stars ( 3 )

Estimated Ship Date: May 13, 2026 if ordered today

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Estimated Ship Date: May 13, 2026 if ordered today

Need It Sooner? We recommend these similar substitute parts:

MaxTrac Suspension Lowering Torsion Keys 440513

Not Yet Reviewed

Estimated Ship Date: Monday 4/27/2026

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Belltech ND2 OEM Shock Kits OE9102

Shocks and Struts, ND2 OEM Shocks, Stock Ride Height, Twin-tube, Gas-charged, Front and Rear, Cadillac, Chevrolet, GMC, Set of 4

Part Number: BEL-OE9102

Not Yet Reviewed

Estimated Ship Date: Monday 4/27/2026 if shipped by air

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Estimated Ship Date: Monday 4/27/2026 if shipped by air

Moroso Ultra 40 Unsleeved Custom-Fit Wire Sets 73681

Spark Plug Wires, Ultra 40, Spiral Core, 8.65mm, Red, 180 Degree Boots, Chevy, Pontiac, 5.7L, Set

Part Number: MOR-73681

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 4/27/2026 if shipped by air

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Estimated Ship Date: Monday 4/27/2026 if shipped by air

Napier Backroadz SUV Tents 19100

Vehicle Tent, Camping, Backroadz SUV, Sportz, Polyester, Gray, 10 ft. x 10 ft. Ground Tent, Over 7 ft. of Headroom, Each

Part Number: NAP-19100

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

Moroso Ultra 40 Unsleeved Custom-Fit Wire Sets 73662

Spark Plug Wires, Ultra 40, Spiral Core, 8.65mm, Blue, 180 Degree Boots, Chevy, Pontiac, 5.7L, 6.2L, Set

Part Number: MOR-73662

4.5 out of 5 stars ( 2 )

Estimated Ship Date: May 20, 2026 if ordered today

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Estimated Ship Date: May 20, 2026 if ordered today

Belltech Suspension Lowering Kits 3925

Leveling Kit, Leveling Kit; 99-06 Tahoe/Suburban/Yukon/Yukon XL & 1/2-TON Silverado/Sierra

Part Number: BEL-3925

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

2003 CADILLAC Parts and Accessories