We’ll be closed 11/28. Office will be open 11/29 normal hours. Have a safe and Happy Thanksgiving!
BLACK FRIDAY DEAL | SAVE $550
Features
Getting started
Hardware
Getting connected
Owner-operators
Fleets
OTR Diagnostics gives you access to fault code information, real-time live data, and perform bi-directional commands like initiating forced DPF regen.
Click here to learn more
Cummins fault code 3255 (SPN 3246 FMI 0 or 16): A critical DPF sensor issue explained
Read more
How to initiate forced DPF regen with OTR Diagnostics: A detailed guide
Top features of OTR Diagnostics that make it a game changer
The advantages of real time data and DIY diagnostics for your trucks health
The Pros and Cons of DIY Semi-Truck Repairs
Why OTR Diagnostics is a Long-Term Investment for Your Semi-Truck(s)
Beginner’s Guide to Understanding Your Semi-Trucks DPF System
How OTR Diagnostics saves you money on your semi-truck repairs
How Do Regular Diagnostics Extend the Life of Your Semi-Truck?
5 Common Misconceptions About DIY Repair on your Semi-Truck
How to Get the Most Out of Your OTR Diagnostics Tool: Advanced Tips
OTR Diagnostics vs. Other Semi Diagnostic Tools: A Comparison
4.9 Stars | 500+ Google Reviews
Experience a new level of support with our focus on treating you how we would like to be treated.
Limited Lifetime Warranty
We value your investment in our product and want you to feel confident in its performance.
Discover how OTR Diagnostics simplifies your truck's maintenance and prevents expensive future problems.