Auto trans. 4.3L. Lightweight; the radiators have a positive heat transfer to weight ratio Corrosion-resistant aluminum designed core helps optimize the radiators long lasting service life This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors

Upper Hose

Silverado, sierra. 4.3l. All models. 4.3l. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors

Lower Hose

With indent urm. 4.3L. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors

ACDelcoâ„¢ Reservoir Cap

Thermostat

S-series. 4.3l. 6 cylinder, with high output. Astro, Safari. Cpi, mpi. All models. Express, savana. 2003-14. Silverado, sierra. 4.3l. Incl.Gasket. 1/2, 3/4 & 1 ton, 1996 new style, 4.3, 5.0, 5.7L. Controls the flow of coolant through your vehicle's radiator to help the engine reach and maintain its optimal operating temperature

Thermostat Housing

All models. 4.3l. Silverado, sierra. 4.3l. Thick base helps prevent leaks by minimizing warpage Leak-resistant Neoprene O-ring seal Helps your cooling system function properly This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors Original equipment parts are designed to work with your GM vehicle safety systems -- aftermarket replacement parts may not meet the same OE safety regulations, depending on the part type

Fan Blade

This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors