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Cummins Parts

Cummins runs more highway miles than almost any other diesel on the road, and JAK'S Diesel stocks the parts to keep those engines turning. From the ISX15 and N14 to the M11, ISC/ISL and the legendary 6BT, we carry PAI Industries aftermarket components plus our own JAK'S Diesel Heads program — cylinder heads, fuel injectors, turbochargers, gaskets and full inframe rebuild kits.

Not sure which family you need? Pick your engine platform below, or send us an OEM or competitor part number and we'll cross-reference it. We ship same-day from Colorado with free freight over $1,000.

Showing 24 of 4055 Cummins Parts

Choosing the Right Cummins Parts

Heavy-duty diesel components must be matched to the exact engine and application. Before ordering from this collection, verify the part number, engine model, engine serial number, and any casting or calibration number shown on the original component.

Fitment information to have ready

  • OEM, dealer, casting, or interchange part number
  • Engine manufacturer, model, and engine serial number (ESN)
  • Truck year and model when the component is chassis-specific
  • Core details for remanufactured or exchange components

Need a fitment check?

Use the OEM cross-reference tool or text a clear photo of the part tag to (720) 445-6249. A JAK'S Diesel specialist can confirm the match before the part ships.

Got a Number We Don't List?

Text a photo of the part tag — a specialist crosses it and quotes you fast.

Text a Part-Tag Photo(720) 445-6249