Diesel Engine Rebuild & Inframe Kits
Rebuild your heavy-duty diesel right the first time. This collection covers inframe overhaul kits and major rebuild kits for the engines you run every day — Cummins, Caterpillar, Detroit, Paccar, Mack, Volvo and International — built around quality PAI Industries components. An inframe kit gets you pistons, liners, rings, bearings and gaskets to overhaul without pulling the block; complete-engine builds belong in our Dominator complete kits.
Not sure which kit fits your engine, serial range, or an OEM part number you already have? That's our specialty. Cross-reference your number or request a quote and we'll confirm the exact kit before you order. Ships same-day from Colorado.
Choosing the Right Diesel Engine Rebuild & Inframe Kits
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.
Can't Find the Right Part?
Text us the part number or a photo of the tag — we'll cross-reference it and quote you the right one.