Fuel injection pump

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About Fuel injection pump

Diesel Fuel Injection Pumps for Heavy Equipment

Find a replacement fuel injection pump for your diesel engine at FAB Heavy Parts. This collection includes fuel injection pumps and pump assemblies for selected construction equipment, excavators, loaders, agricultural tractors, utility vehicles, and commercial trucks. Search by part number, engine model, or equipment application to narrow your options for engine repair or replacement.

Injection Pumps for Cummins, Kubota, Isuzu, and More

Explore fuel injection pump listings for selected Cummins engines, including the 6C8.3, ISC, ISL, N14, and NT855 families. The collection also includes pumps for Kubota engines such as the D905, D1005, D1105, D1305, and V3800, as well as selected Isuzu, Deutz, Caterpillar, Bobcat/Doosan, and other applications.

For example, the collection lists a pump assembly under Kubota part number 16032-51013 for specified D-series engines. It also lists Caterpillar pump 436-1091 for selected C3.3B applications. These examples refer to specific product listings and should not be treated as universal fitment across all engines from the same manufacturer.

Choose the Correct Fuel Injection Pump

A fuel injection pump meters and delivers fuel to the engine’s injection system at the required pressure and timing. The correct replacement depends on the engine’s fuel system design, pump configuration, and exact application.

Before ordering, compare the part number on your existing pump with the listing. Confirm the engine model and version, equipment model, and relevant serial or configuration details where available. Check whether the listing is for a complete injection pump assembly or a particular pump component. Do not assume that pumps for similar engine models are interchangeable.

Product condition can also vary. Some listings identify new aftermarket replacements, while others offer remanufactured and new aftermarket options. Review the specific product page to understand the available variant and included components.

Need Help Finding Fuel injection 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 know which fuel injection pump fits my engine?

Please start with the part number on your existing pump and compare it with the replacement numbers on the product page. Your engine model and equipment model are also helpful, especially when a pump has several listed applications. If you are still unsure, please send us the part number and equipment details through our Request a Quote page, and we can review the information available for the replacement fuel injection pump.

What should I do if my Caterpillar machine still has the same problem after replacing a part?

First, verify that the replacement component matches the required application and was installed according to the appropriate service information. Continued symptoms may indicate another issue within the affected system. We recommend diagnosing the underlying fault before replacing additional components, especially for fuel delivery, electrical control, and hydraulic problems.

Are the fuel injection pumps new or remanufactured?

The condition depends on the specific product and, in some cases, the selected variant. For example, the Kubota 16032-51013 listing offers remanufactured and new aftermarket options, while the Caterpillar 436-1091 listing identifies the pump as remanufactured. Please check the product page and selected variant carefully so you know which option you are ordering.

My diesel engine is hard to start after replacing the injection pump. What should I do?

Hard starting does not necessarily mean the replacement pump is faulty. Air in the fuel system, fuel contamination, incorrect timing, or other fuel-system issues can also contribute. Please follow the engine manufacturer's service procedures and have a qualified technician check the installation, timing, and fuel supply. Because injection systems can operate at very high pressure, do not loosen high-pressure fuel lines while the engine is running.

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