Vehicle compatibility
Take matters into your own hands
No more spending days at repair shops for issues you could fix yourself on the spot. Check your truck to see exactly what OTR Diagnostics can do on it.
- Make better choices for your truck
- Find and fix engine problems fast
- Avoid unnecessary repairs
Will OTR Diagnostics work with your truck?
Select your truck and engine to see compatibility, supported diagnostics and available commands.
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.
Dealer-level commands
No more guesswork.
Say goodbye to inflated dealer fees and wasted hours. OTR puts dealer-level commands in your hands, so you can decide when a visit is actually necessary.
Real results
Real customers. Real trucks.
This product paid for itself on the first use. Easy to use and understand, and prevents small problems from turning into bigger problems.
Robert Purser
Google review
This program has saved me thousands on roadside calls. Not to mention, the one on one support to fix an issue is unparalleled to other companies.
Travis Fly
Google review
I’ve been using this product for years. It has saved me from being towed and allowed me to properly diagnose issues without the dealership. It keeps track of fault codes and records all engine specs. But the best thing is it allows me to force regen to keep the engine running correctly.
Keith Spalding
Google review
Then there's one question left.
Same Michigan-based 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.