2003 CHEVROLET SILVERADO-2500-HD Cooling & Heating

Transmission Oil Cooler, Rapid-Cool, Thermal Bypass Plate, Natural, 11 in. x 11.625 in. x 0.75 in., 3/8 in. Hose Barb, Aluminum, Each

Part Number: HDA-699

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 11/10/2025

Radiator, Aluminum/Plastic, Crossflow, Black, Chevy, GMC, 6.6L, Diesel, Each

Part Number: SUM-380407

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 11/10/2025

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Water Neck, Aluminum, Natural, Each

Part Number: ADO-15-10412

4.33 out of 5 stars ( 3 )

Estimated Ship Date: Monday 11/10/2025

• $20.00 Summit Bucks

Electric Fan, Dual, 15 in. Diameter, Puller, 6,000 cfm, Black, Nylon, Each

Part Number: FLX-104703

Not Yet Reviewed

Estimated Ship Date: Monday 11/10/2025

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Fluid Cooler, Transmission, Tube, Fin, Natural, 7.5 in. x 12.5 in. x 0.75 in., 3/8 in. Inlet, Outlet, Each

Part Number: HDA-403

4.6 out of 5 stars ( 43 )

Estimated Ship Date: Monday 11/10/2025

Transmission Oil Cooler, Rapid-Cool, Thermal Bypass Plate, Natural, 11 in. x 9 in. x 0.75 in., 3/8 in. Hose Barb, Aluminum, Each

Part Number: HDA-698

4.8 out of 5 stars ( 5 )

Estimated Ship Date: Monday 11/10/2025

Fluid Cooler, Transmission, Tube, Fin, Natural, 10 in. x 15.875 in. x 0.75 in., 3/8 in. Inlet, Outlet, Each

Part Number: HDA-405

4.73 out of 5 stars ( 11 )

Estimated Ship Date: Monday 11/10/2025

Water Pump, Mechanical, High-Volume, Counterclockwise, Aluminum, Natural, Buick, Cadillac, Chevrolet, GMC, Each

Part Number: PQX-1434606

3.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 11/10/2025

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Air Conditioning Compressor, 10S20F Type, Aluminum, Natural, Serpentine Pulley, 4-groove, Cadillac, Chevrolet, GMC, Hummer, Isuzu, Each

Part Number: UAC-CO29002C

Not Yet Reviewed

Estimated Ship Date: Monday 11/10/2025

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Thermostat, with Seal, 160 Degrees F, Stainless Steel, Each

Part Number: SNN-456-160

3.75 out of 5 stars ( 4 )

Estimated Ship Date: Monday 11/10/2025

Water Neck, Aluminum, Chrome Plated, Swivel, 60 Degree, Chevrolet, LS, Each

Part Number: MRG-2670

4.33 out of 5 stars ( 18 )

Estimated Ship Date: Monday 11/10/2025

Radiator, 1-row, Aluminum/Plastic, Natural, Transmission Cooler, Cadillac, Chevrolet, GMC, Each

Part Number: RDR-8012423

4.75 out of 5 stars ( 4 )

Estimated Ship Date: Monday 11/10/2025

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Thermostats, Mechanical, 185 degree, 191 degree, Standard-flow, Chevy, 6.6L Duramax Diesel, Pair

Part Number: MIO-MMTSCHV01DH

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 11/10/2025

Thermostat, Mechanical, OE, 180 degrees, Standard-flow, Steel, Chevy, GMC, 6.6L Diesel, Each

Part Number: ADO-131-131

5.0 out of 5 stars ( 5 )

Estimated Ship Date: Monday 11/10/2025

• $20.00 Summit Bucks

Fluid Cooler, Engine Oil Type, Stacked Plate, Aluminum, Black, -8 AN Male Threads Inlet/Outlet, Kit

Part Number: DER-15651

Not Yet Reviewed

Estimated Ship Date: Monday 11/10/2025

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Electric Fan, Dual, 13 1/2 in. Diameter, Puller, 4,600 cfm, Black, Plastic, Chevy, GMC, Each

Part Number: FLX-105398

4.33 out of 5 stars ( 3 )

Estimated Ship Date: Monday 11/10/2025

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Water Pump Spacers, 1.500 in. Thickness, Billet Aluminum, Natural, Buick, Cadillac, Chevy, GMC, LS, Kit

Part Number: ICB-551697

4.5 out of 5 stars ( 8 )

Estimated Ship Date: Monday 11/10/2025

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Coolant Reservoir, Plastic, White, Cadillac, Chevy, GMC, Hummer, Each

Part Number: RNB-603-102

4.45 out of 5 stars ( 11 )

Estimated Ship Date: Monday 11/10/2025

Radiator, Exact Fit, Aluminum, Plastic, Cadillac, Chevy, GMC, Hummer, Each

Part Number: OSC-2370

4.09 out of 5 stars ( 11 )

Estimated Ship Date: Monday 11/10/2025

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Fan Clutch, Severe-Duty Thermal, Chevy, GMC, Isuzu, Oldsmobile, Each

Part Number: HDA-2786

4.88 out of 5 stars ( 16 )

Estimated Ship Date: Monday 11/10/2025

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 11/10/2025

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Air Conditioning Compressors, Aluminum, Natural, Pulley, Cadillac, Chevrolet, GMC, Hummer, Each

Part Number: DNP-471-0315

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 11/10/2025

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Radiator, Exact Fit, OE, Aluminum/Plastic, Natural, Crossflow, Each

Part Number: ADO-21649

3.5 out of 5 stars ( 6 )

Estimated Ship Date: Monday 11/10/2025

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• $20.00 Summit Bucks

Climate Control Module, Manual A/C Controls, Auto Programming, Buick, Cadillac, Chevy, GMC, Isuzu, Oldsmobile, Saab, Each

Part Number: RNB-599-210XD

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 11/10/2025

• Free Shipping

Fluid Cooler, Transmission, Tube, Fin, Natural, 7.5 in. x 15.875 in. x 0.75 in., 3/8 in. Inlet, Outlet, Each

Part Number: HDA-404

4.5 out of 5 stars ( 14 )

Estimated Ship Date: Monday 11/10/2025