5.0 & 5.7L. With ac. All models. Aluminum, without oil cooler. 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

7.4L, hd. 5.7L.

ACDelcoâ„¢ Radiator Cap

Thermostat

All models. Tbi. 6 cylinder, without high output. Astro, Safari. 58.7mm Wide. Vendor:acdelco. Vendor #131-71. 4.3L. 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. 5.0l, 5.7l. Exc.Armored Body Equipment. 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 Clutch

All. Stamped, bd. 5.0 & 5.7L, 5.0L, hd cooling. 4.3L, hd cooling. Code hk,hl. 5.0 & 5.7L, radiator fan, 5.7L. Stamped, hk. Code ar,ax,bd,gp,hk,jm.