Water pump

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About Water pump

Replacement Water Pumps for Engines and Heavy Equipment

Find replacement water pumps for selected heavy equipment, diesel engines, trucks, tractors, generators, and other applications. FAB Heavy Parts offers water pumps, pump assemblies, and selected water pump repair kits for a range of engine brands and equipment models. Whether you're maintaining an excavator, servicing an industrial engine, or repairing an agricultural machine, start with the part number and engine application to narrow your search.

Water Pumps for a Range of Engine Applications

Our selection includes water pumps listed for Caterpillar, Komatsu, Cummins, Perkins, Mitsubishi, Isuzu, Yanmar, and other manufacturers. Examples in this collection include a water pump listed for the Mitsubishi D04FR engine in selected Kobelco SK130-8, SK140-8, and SK135-2 excavators; pumps for Caterpillar 3304 and 3306 engines; and pumps for Cummins NT855 and K38 engine families. The collection also includes selected marine water pumps and other vehicle applications.

Available products vary by application. Some listings are for individual pumps, while others are assemblies or repair kits. Review the details on each product page to identify what is included.

What Does an Engine Water Pump Do?

An engine water pump circulates coolant through the engine cooling system to help carry heat away from engine components. A worn or damaged pump can contribute to coolant leaks, poor circulation, or overheating. When replacing a pump, also inspect the cooling system for related issues and follow the engine manufacturer's service procedures.

Find the Correct Water Pump Replacement

Start by matching the replacement part number or listed cross-reference numbers. Then compare the engine model and the equipment application shown on the product page. Similar engine names do not necessarily mean the water pumps are interchangeable; mounting points, pulley or drive configuration, connections, and other design details may differ.

Need Help Finding Water pump?

Can't find the replacement part you need? Send FAB Heavy Parts your part number, engine model, or equipment details. Our team can help review your requirements and provide a quotation.

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Frequently Asked Questions

How do I find the right water pump for my engine or equipment?

Please start by checking the part number on your existing water pump and identifying your engine make and model. Compare these details with the applications listed on the product page. If you're unsure which option is right for your equipment, please contact our team with your engine details and existing part number, if available, so we can help review the information.

What's the difference between an engine water pump and a marine raw-water pump?

An engine water pump circulates coolant through the engine's cooling system, while a marine raw-water pump moves water drawn from outside the vessel through the relevant cooling circuit. These pumps serve different applications and aren't automatically interchangeable. Please check your existing pump type and the application details on the product page before placing your order.

How can I tell if my water pump needs to be replaced?

Common warning signs include coolant leaking around the pump, unusual bearing noise, or an engine that repeatedly runs hotter than normal. These symptoms can also result from other cooling-system problems, such as a faulty thermostat or restricted radiator. Please have the system inspected to identify the cause before replacing parts.

What should I check if my engine still overheats after I install a new water pump?

Please check the coolant level and look for leaks or trapped air in the cooling system, following the equipment manufacturer's service procedure. A restricted radiator, faulty thermostat, or fan problem may also cause overheating. If the temperature remains too high, stop operating the engine and have the cooling system inspected to prevent further damage.

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