2003 CHEVROLET SILVERADO 2500 HD Cooling & Heating

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 2/23/2026 if shipped by air

Heater Hose Connector Fitting, Straight, Hose Barb/Quick Connect, Stainless Steel, Natural, Cadillac, Chevrolet, GMC, Each

Part Number: PPE-119020009

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 2/23/2026 if shipped by air

Thermostat, with Seal, 187 Degrees F, Stainless Steel, Each

Part Number: SNN-456-187

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 2/23/2026 if shipped by air

Thermostat, Mechanical, OE, 195 degrees, Standard-flow, Each

Part Number: ADO-131-121

Not Yet Reviewed

Estimated Ship Date: Monday 2/23/2026 if shipped by air

Thermostat, Integrated Housing Thermostat, 187 Degrees F, Stainless Steel, Each

Part Number: SNN-379-187

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 2/23/2026 if shipped by air

Thermostat-180 Degrees w/ Seal

Part Number: SNN-456-180

Not Yet Reviewed

Estimated Ship Date: Monday 2/23/2026 if shipped by air

Fail-Safe Thermostat-180 Degrees w/ Seal

Part Number: SNN-7267-180

Not Yet Reviewed

Estimated Ship Date: Monday 2/23/2026 if shipped by air

Water Neck and Thermostat Housing, Stock, Cast Aluminum, Natural, Chevrolet, GMC, Workhorse, Each

Part Number: RNB-902-836

4.33 out of 5 stars ( 3 )

Estimated Ship Date: Monday 2/23/2026 if shipped by air

Air Filter, Cabin, Paper, Cadillac, Chevy, GMC, Pair

Part Number: WIX-24805

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 2/23/2026 if shipped by air

Fluid Cooler Mounting, Plastic, Natural, Kit

Part Number: HDA-251

Not Yet Reviewed

Estimated Ship Date: Monday 2/23/2026 if shipped by air

A/C System Seal Kit

Part Number: UAC-RS2741

Not Yet Reviewed

Estimated Ship Date: Mar 9, 2026 if ordered today

• Drop Ship
• Special Order

Coolant Line

Part Number: RNB-667-166

Not Yet Reviewed

Estimated Ship Date: Mar 12, 2026 if ordered today

• Drop Ship
• Special Order

A/C System Seal Kit

Part Number: UAC-RS2550

Not Yet Reviewed

Estimated Ship Date: Mar 9, 2026 if ordered today

• Drop Ship
• Special Order

UPPER FAN SHROUD; WITH REAR AIR CONDITIONING

Part Number: BDY-GM3110135

Not Yet Reviewed

Estimated Ship Date: May 20, 2026 if ordered today

• Drop Ship
• Special Order

Coolant Line

Part Number: RNB-667-167

Not Yet Reviewed

Estimated Ship Date: Mar 12, 2026 if ordered today

• Drop Ship
• Special Order

DIESEL UPPER FAN SHROUD

Part Number: BDY-GM3110140

Not Yet Reviewed

Estimated Ship Date: May 21, 2026 if ordered today

• Drop Ship
• Oversize $10.99
• Special Order