Heavy Truck Diagnostic Software – All Makes & Engines

Diagnostic software for heavy-duty trucks — the full lineup in one place. If you run a mixed fleet or an independent shop, start here and pick by the engine in front of you.

Coverage by brand

Engine / brand Software Adapter
Cummins (ISX15/X15, B6.7) INSITE Nexiq / INLINE
Detroit (DD13/15/16) DiagnosticLink Nexiq / DPA5
Volvo / Mack Tech Tool (PTT) Vocom / Vocom II
PACCAR MX Davie4 / ESA Nexiq
International / MaxxForce ServiceMaxx Nexiq
Hino DX3 Nexiq
Cross-make (Class 3–8) JPRO Nexiq

Not sure what you need?

Most brands overlap on one adapter (a Nexiq USB-Link), so the real question is which software matches your engine — and whether you need to reprogram modules or just read and clear codes.

If you want one tool that touches almost everything, look at JPRO; if you service one make, the dealer-level tool for that engine gives you the deepest access.

Tell us the trucks in your fleet and we'll build the right combination and install it remotely the same day.