Caterpillar 2W8002 Water Pump Assembly

The 2W8002 water pump is an engine coolant circulation assembly designed for Caterpillar 3304 and 3306 diesel engine platforms. It features a precision-cast aluminum housing with a cast iron impeller, gear-driven operation with 40-tooth gear at 110.91 mm outer diameter, and a unitized seal design for leak-free performance. The pump mounts via direct bolt-on flange configuration matching factory specifications for flow rate at rated RPM. Asbestos-free gasket and O-ring seals are included for installation. This assembly serves as the primary coolant pump for engine blocks, radiators, and oil coolers across articulated trucks, wheel loaders, compactors, and generator sets powered by 3300 series engines.