Radiator Cap

All models. Express, savana. S-series. 5.0, 5.7, 7.4 & 8.1L. 4.3L. Astro, Safari. Helps seal and maintain pressure in your vehicle's cooling system for vehicle safety

Thermostat

Express, savana. 7.4l. Express, savana. 8.1l. Controls the flow of coolant through your vehicle's radiator to help the engine reach and maintain its optimal operating temperature

Thermostat Housing

Express, savana. 7.4l. 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

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