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2003 Chevrolet Express 3500 Thermostats

Looking for aftermarket parts to modify or upgrade your 2003 Chevrolet Express 3500 with thermostats? At Tunersports.com we carry a huge selection of the top name brand performance thermostat parts and accessories.

Thermostat Parts:

Only show in-stock parts

Edelbrock Thermostat

OUT OF STOCK 48093 Edelbrock part #48093 Waterneck is designed for use with Chevy 4.3L V6 & Chevy V8 engine applications. This Black water neck is a great way to finish off your engine. It features a 15 deg. neck and O-ring design for an improved seal, which also allows for removal without requiring a new gasket. Fits... Edelbrock Chevy 15 Deg. Water Neck Steel - Black 1996-2020 Chevrolet Express 3500 Base / LS $70.97 Details

Gates Thermostats

OUT OF STOCK 33910 Gates 98-00 Chevy Camaro V8 / 99-06 Chevy Silverado/GMC Sierra (Gas) OE Type Thermostat - 187 Degree 2003-2003 Chevrolet Express 3500 Base / LS $51.30 Details
OUT OF STOCK 33963 Gates 04-06 Pontiac GTO / 03-06 GMC Envoy / 00-11 Chevrolet Suburban Thermostat 2003-2006 Chevrolet Express 3500 Base / LS $37.65 Details
OUT OF STOCK 34702 Gates 98-02 Chevy Camaro / 99-09 Silverado / 03-06 Cadillac Escalade Thermostat Housing 2003-2006 Chevrolet Express 3500 Base / LS $100.49 Details