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Caterpillar C15 Parts

Everything for the Caterpillar C15 and C15 Acert in one place: cylinder heads, inframe and overhaul rebuild kits, fuel injectors, turbochargers, gaskets and the hard parts that keep these on-highway engines working. New and remanufactured options, shipped same-day with free freight on orders over $1,000.

Not sure which part fits your C15? Send us an OEM, competitor or superseded part number — cross-referencing is what we do best. Use the OEM cross-reference tool or request a quote, or call/text (720) 445-6249.

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Choosing the Right Caterpillar C15 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