Serpentine Belt Driven
It also fits vehicles with the 5.3L, 6.0L, or 6.2L 8-cylinder engines. This part is for vehicles without the hybrid option.
Pump only
Pump Only
Serpentine Belt Driven
Includes thermostat and thermostat housing
Includes Gaskets with Mechanical Thermostat ; New Water Pump
Thermostat Not Included; New Water Pump Mounting Gaskets Included With 1.99 Inch; 50.6 Millimeter Thermostat
Browse our selection of quality engine water pump parts designed specifically for your Hummer H3. We carry options across multiple trim levels, body styles, and engine configurations to ensure a perfect fit.
Adventure · Alpha · Base · Championship Series · Luxury · X
SUV · Sport Utility
L5 3.5L · L5 3.7L · V8 5.3L
Automatic · Manual