Cummins QSX Parts for Canada - Engine Water Pump Section

Cummins QSX Engine Parts – Water Pump & Cooling System Section

The Cummins QSX water and cooling system is vital for regulating engine temperature, preventing overheating, and ensuring reliable operation in demanding environments. The centerpiece of this section is the Cummins Fresh Water Pump, featuring a 10-rib pulley and fan center between 8.5" and 9.75". This precision-engineered pump maintains a steady flow of coolant throughout the engine block, cylinder head, and radiator, ensuring consistent operating temperatures and extending component life. Replacing a worn water pump restores optimal circulation and helps protect against thermal stress or gasket failure.

Complementing the water pump, the Cummins Thermostat and Thermostat Seal control coolant flow between the engine and radiator, helping the engine reach and maintain the ideal operating temperature. Diesel Pro Power also offers Belt Tensioners for both early (2003–2014) and later (2015 and up) QSX engine models, ensuring proper belt alignment and tension for the water pump and accessory drives.

Supporting the full cooling circuit, a wide selection of Silicone Coolant Hoses—ranging from 3/4" to 4" inside diameter—provides flexibility and high-temperature resistance, while Stainless Steel Hose Clamps ensure leak-free connections at every joint. The Temperature Switch safeguards the system by activating alerts or shutdowns at 205°F, and the Radiator Cleaner keeps internal passages free of deposits and scale.

Diesel Pro Power’s premium aftermarket cooling components help maintain consistent heat control, improve system longevity, and keep Cummins QSX engines performing efficiently in industrial, marine, and heavy-equipment applications.