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Cummins engine parts

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About Cummins engine parts

Cummins Engine Parts for Diesel Engines

Find Cummins engine parts for maintenance, repair, and engine rebuilding at Fab Heavy Parts. This collection includes replacement components for selected Cummins diesel engine applications used in trucks, construction equipment, generators, and industrial machinery.

Browse engine parts by component type, engine family, or part number to narrow your search. The collection includes fuel system components, turbochargers, cooling parts, overhaul kits, gaskets, and other engine-related replacement parts.

Cummins Fuel System and Turbocharger Parts

Explore fuel injectors, fuel lift pumps, fuel transfer pumps, fuel injection pumps, and related components for selected Cummins engines. Verified examples include fuel injectors 3932123 / 3802905 listed for 4BT 3.9L applications and injection pump 3922471 listed for 6CTA, 6C8.3, and 6CT8.3 applications. Turbocharger listings include parts for selected 4BT, 6BT, 6CTA, ISX, and X15 engine applications. 

Fuel delivery and turbocharger components can vary by engine configuration and production version, so use the application details on each product page rather than assuming parts are interchangeable across an engine family.

Cummins Engine Overhaul, Cooling, and Internal Components

For engine rebuilding and routine maintenance, the collection includes engine overhaul kits, water pumps, gasket kits, rocker housings, crankshaft-related components, and exhaust manifolds. For example, water pump 3800883 / 4955417 is listed for B3.3, QSB3.3, QSB4.5, and other specified applications. An overhaul kit is also listed for the Cummins B3.3 and QSB3.3 engines. 

The correct kit or component depends on the engine model and the work being performed. Check the listed contents of an overhaul kit and verify the required components before ordering.

Find the Right Cummins Replacement Parts

Cummins engines with similar model names may have different components depending on displacement, configuration, emissions system, and production version. Compare the original part number and engine identification with the product listing before selecting a replacement.

Need Help Finding Cummins engine parts?

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 can I make sure I'm ordering the right part for my Cummins engine?

We recommend checking the original component number, your engine's full model designation, and its engine serial number (ESN). Depending on the component, the Control Parts List (CPL) or engine configuration may also be relevant. Compare these details with the Cummins engine parts listing and the applicable Cummins parts information before ordering.

We recommend checking the original component number, your engine's full model designation, and its engine serial number (ESN). Depending on the component, the Control Parts List (CPL) or engine configuration may also be relevant. Compare these details with the product listing and the applicable Cummins parts information before ordering.

Not necessarily. Engines within the same family may have different fuel systems, turbochargers, cooling components, or internal specifications. For example, parts listed for one 6BT or QSB application should not automatically be assumed to fit every engine with that family name. Verify the original part number and engine-specific configuration.

Does a Cummins engine overhaul kit include all the parts I need for a rebuild?

Kit contents vary by product and engine application. Some kits include multiple internal engine components, while others are gasket-focused or offer different configuration options. We recommend reviewing the exact included-parts list and comparing it with your engine's repair requirements before placing an order.

Can you help me identify a replacement if the original Cummins part number is missing?

The engine serial number, complete engine model, and available CPL information can help narrow down the correct component. Photographs of the original part and any visible identification markings may also be useful. Where several similar options exist, the engine-specific parts catalog should be used to confirm the correct reference.

What should I check before installing my replacement Cummins engine part?

Compare the received part with the original, including its reference number, physical configuration, connections, and any relevant specifications. For engine overhaul components, confirm that the supplied kit contents and selected options match your repair requirements. Follow the appropriate engine service instructions, especially for fuel injection, turbocharger, and internal engine components.

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