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Caterpillar C11 & C13 Parts

Parts for the Caterpillar C11 and C13 ACERT platform — the on-highway workhorses behind countless Class 8 trucks and heavy equipment. We stock the high-wear components that keep these engines running: cylinder heads, fuel injectors, turbochargers, gaskets, and full rebuild kits, backed by PAI Industries aftermarket coverage.

Shopping by an OEM, competitor, or superseded part number? Cross-reference it with us and we'll match the right part for your build. Most orders ship same-day, with free freight on orders over $1,000. Call or text (720) 445-6249 for a quote.

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Choosing the Right Caterpillar C11 & C13 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