International / Navistar Parts
JAK'S Diesel stocks parts for International / Navistar diesel engines, including the workhorse DT466 family, for trucks, buses, ag and vocational equipment. We carry PAI Industries aftermarket components alongside our own JAK'S Diesel Heads, so you can rebuild, repair, or upgrade without overpaying for the OEM tag.
Not sure which part fits your engine? Send us an OEM, competitor, or superseded number and we'll cross-reference it. Most orders ship same-day from Colorado, with free freight over $1,000. Call or text (720) 445-6249, or request a quote and we'll confirm fitment fast.
Choosing the Right International / Navistar 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.