2003 CADILLAC Summit Racing Cooling & Heating

Radiator, Exact Fit, Aluminum, Plastic, Cadillac, Chevy, GMC, Hummer, Each w/Oil cooler

Part Number: SUM-380533

5.0 out of 5 stars ( 10 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Radiator, Exact Fit, Aluminum, Plastic, Cadillac, Cadillac, Hummer, Chevy, GMC, LS, Each w/o Oil cooler

Part Number: SUM-380536

4.11 out of 5 stars ( 9 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Radiator, Exact Fit, Aluminum, Plastic, Cadillac, Chevy, GMC, 4.8L, 5.3L, Each

Part Number: SUM-380545

4.2 out of 5 stars ( 5 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Thermostat, 187 Degree, WithThermostat Housing, Copper/Brass, Stainless Body, GM, Each

Part Number: SUM-367-187

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

Water Pump Spacer, 1.500 in. Thickness, Billet Aluminum, Natural, Chevy GM, LS/LSX, Gen III/IV, Kit

Part Number: SUM-312538

Not Yet Reviewed

Estimated Ship Date: Monday 4/13/2026 if shipped by air

Radiator Cap, Steel, Natural, 18 psi, Each

Part Number: SUM-380176

4.83 out of 5 stars ( 6 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air