Find your engine.
See exactly what OTR can do on it.
Every model, every year range and every bi-directional command we support — named. Find yours below and see exactly what OTR does on it.
Six makes. Twenty-two engines.
Each page names the exact commands for your engine, the faults our members log most often on it, and the dealer bill each one replaces — 22 million logged fault codes, narrowed down to the engine you actually run.
OTR Remote Diagnostics covers the newest trucks on the road.
Through 2026 on most makes, monitored 24/7 over cellular, with faults reaching your dashboard within seconds of triggering — and you send the command from wherever you are. Nobody has to be at the truck. OTR Diagnostics covers the widest model list for owner-operators who are.
| Make | OTR Remote Diagnostics 2+ trucks · always on · act from anywhere BEST FOR FLEETS | OTR Diagnostics 1 truck · plug in at the truck |
|---|---|---|
| Cummins | X15 2017–2026X12 2018–2026ISX15 2011–2017ISX12 2011–2018 | X15X12ISXISC 8.3ISL 9ISB 6.72008 – 2024 |
| Detroit Diesel | DD13 2011–2026DD15 2011–2026DD16 2011–2019 | DD5DD8DD13DD15DD162008 – 2024 |
| Paccar MX | MX-13 2013–2026MX-11 2017–2026 | MX-11MX-132011 – 2024 |
| Volvo | D11 2014–2026D13 2014–2026D13TC 2018–2026D16 2014–2019 | D11D13D13TCD162014 – 2024 |
| Mack | MP7 2014–2026MP8 2014–2026 | MP7MP8MP8HEMP102014 – 2024 |
| International | Coming soonOTR Remote for the A26 is coming soon. The plug-in product covers it today. | A262017 – 2024 |
Whatever you run, you get the dealer's view of it.
Command sets differ by engine. Everything else on this list doesn't.
Real SPN and FMI fault detail
The exact fault with the exact sub-code, not the generic "check engine" a $60 dongle returns. Plus what it means, in plain English.
Bi-directional commands
Force a DPF regen, reset fault codes, reset aftertreatment. How many you get depends on the engine — the count on each card above is the honest version.
OTR Assist AI diesel tech
Answers drawn from 22 million logged fault codes and 1,000,000+ commands sent by members on engines like yours — what caused it, what fixed it, what it cost.
Live engine data, 30+ parameters
Soot and ash load, DEF level, boost, EGR position, exhaust and SCR temps, oil pressure, mileage and hours. The gauges the OEM left off your dash.
Full diagnostic history
Every fault and every command saved to the cloud. Useful for maintenance intervals, warranty disputes and resale proof.
Michigan-based support
A help center, full manuals and a phone line that reaches the people who build it.
Switching is the safe move, not the gamble.
Real support from Detroit
A help center, full manuals and a phone line that reaches the people who build the product.
Made and assembled in-house
Designed, built and assembled in Detroit. Not a reseller drop-shipping a generic box with a sticker on it.
10,500+ already on it
With 600+ Google reviews at 4.78★, you are not the test case. You are joining an operation thousands of drivers and fleets already trust.
A membership you control
Manage or change your plan when you need to — backed by a 60-day 100% money-back guarantee and a limited lifetime warranty on the hardware.
Then there's one question left.
Same Detroit support either way. The difference is whether a fault has to wait for someone to walk out to the truck — or reaches you the second it happens.