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Caterpillar C7 & C9 Parts

Hard parts for the Caterpillar C7 and C9 ACERT platform, in stock and ready to ship: fuel injectors and high-pressure pumps, cylinder heads, turbochargers, gaskets, and inframe and overhaul rebuild kits. We stock PAI Industries aftermarket alongside our own JAK'S Diesel Heads, so you can match quality to the job and the budget.

Not sure a number fits your serial-suffix build? Cross-referencing OEM, competitor, and superseded part numbers is what we do best. Send us the CAT number off the part or the data plate and we'll confirm the right component the first time. Request a quote or call (720) 445-6249 — same-day shipping from Colorado, free freight over $1,000.

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Choosing the Right Caterpillar C7 & C9 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