International is the most confusing OEM diagnostic landscape in the industry: NavKal for newer trucks, NEDS for MaxxForce-era electronics, DLB for legacy body and chassis systems. Competitors sell all three with zero explanation. This hub is the map.
International coverage: engines, models and systems
Our International diagnostic coverage spans every current platform and the legacy fleets still on the road. The table below maps the engines and vehicle families you can scan, code and program with a dealer-level setup. If your truck is missing, run it through the compatibility checker or ask us on WhatsApp — coverage updates land monthly.
| Platform | Engines / Systems | Model Years | Dealer Software | Required Adapter |
|---|---|---|---|---|
| A26 engine | International A26 12.4L | 2017–2026 | NavKal | Nexiq USB-Link 3 / RP1210 |
| MaxxForce 11/13/15 | MaxxForce big-bore | 2010–2016 | NEDS + NavKal | USB-Link 3 / DPA 5 |
| MaxxForce DT / 7 | Mid-range MaxxForce | 2007–2016 | NEDS | USB-Link 3 / DPA 5 |
| DT466 / DT570 legacy | DT466E, VT365, DT570 | 1998–2010 | DLB / NEDS | DPA 5 / USB-Link 3 |
| Body & chassis | LT, HV, MV, RH series electronics | 2017–2026 | DLB (newer) / NavKal | USB-Link 3 |
OEM software vs multi-brand: which International setup fits your shop
NavKal (~$995/yr) is the current platform for A26 engines and 2017+ trucks. NEDS remains required for MaxxForce-era engine electronics. DLB covers body/chassis controllers on newer models. Many International shops end up with two of the three — tell us your fleet's model years and we will spec the minimum set.
Shops that only touch International iron get the most depth per dollar from the OEM package. Mixed fleets usually pair one OEM license with a multi-brand platform — see the OEM vs aftermarket capability breakdown before you spend.
What it costs — real numbers, not “call for price”
NavKal runs about $995/yr, NEDS about $895/yr, DLB about $795/yr. A two-platform setup with Toughbook and USB-Link 3 runs $4,395 as a kit. MaxxForce-heavy fleets should budget for NEDS first — it is the platform with the most daily use on those trucks. See our MaxxForce fault-code reference before you spend.
Guides and fault codes for International
Start with the procedures and reference pages below — they are written by working technicians and kept current with each software release.
- International A26 fault codes — full reference list.
- MaxxForce fault codes — the most-searched problem codes with real fixes.
- Forced DPF regen master guide — NavKal and NEDS procedures.
- What a setup costs — International section included.
International kits & best-sellers
International Two-Platform Kit
NavKal + NEDS on a Toughbook with USB-Link 3 — covers A26 through MaxxForce fleets.
View details →NavKal Software-Only
Current-platform license with remote install; covers 2017+ International trucks.
View details →NEDS for MaxxForce
The essential tool for 2007–2016 MaxxForce engine electronics.
View details →Frequently Asked Questions
What is the difference between NavKal, NEDS and DLB?
NavKal is the current diagnostic platform for 2017+ trucks and the A26 engine. NEDS (Navistar Engine Diagnostics Software) covers MaxxForce-era engine electronics. DLB (Diamond Logic Builder) handles body and chassis multiplex systems. Our NEDS vs DLB explainer maps every model year to the right tool.
Is there one tool that covers all International trucks?
Why is MaxxForce diagnostic support so hard to find?
MaxxForce engines were discontinued after 2016 and Navistar deprioritized documentation, while the trucks remain in service by the hundred thousand. Our MaxxForce fault-code pages are written specifically for this abandoned fleet.