Heavy duty. Standard. Auto trans. S-series. 4.3l. Manual trans. 6 cylinder, 4.3. 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

ACDelcoâ„¢ Radiator Cap

Lower Hose

6 cylinder, 4.3. Lower, 4.3. 4.3L. Without performance pkg. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors

Thermostat

Controls the flow of coolant through the radiator to help your vehicle's engine reach and maintain its optimal operating temperature Professional, premium aftermarket replacement This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors Manufactured to meet expectations for fit, form, and function

All models. Tbi. Astro, Safari. 6 cylinder. 4.3L.

S-series. 4.3l. 6 cylinder, 4.3, with ac. 5 Blade.

Clutch

Helps quiet noisy cooling fans with stuck fan clutches 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