Proformance Diagnostics – Diesel Truck Diagnostic Tools. Premium heavy-duty diagnostic equipment for Cummins, Detroit Diesel, Paccar, Volvo, and Mack engines.
The Advanced Diagnostic Tool For Truck Drivers
More Than Just a Regen Tool
NOx Sensor Tester
Advanced Diagnostics
NOx Sensor Tester + Fast Testing + Save Time
Trusted by Over 500,000 Users Worldwide
Become an Authorized Dealer
Join our network to grow your business. Partner with Proformance Diagnostics and gain access to innovative diagnostic solutions, dealer-only benefits, and ongoing support designed to help you expand your reach and increase revenue.
Advanced Diagnostics & Repair
Professional-grade capabilities, made simple for everyday use
OEM-Level Diagnostics
Access deep, OEM-level data including fault codes, live parameters, and system status across major commercial vehicle platforms.
Mobile App Connectivity
Use an intuitive mobile app to view diagnostics, monitor vehicle health, and manage reports anytime, anywhere—right from your phone or tablet.
Special Functions
Perform essential service and reset functions with guided workflows that simplify advanced operations and reduce reliance on multiple tools.
Find Your Use Case
Owner-Operators
Warning light just came on? Know in seconds whether it's safe to keep driving or time to pull over — without guessing or waiting for a mechanic.
Fleet Maintenance Teams
Cut diagnostic time per truck from hours to minutes. Spot issues before they become breakdowns and keep your entire fleet moving with fewer surprises.
Mobile Diesel Mechanics
Show up with everything you need in your pocket. Run OEM-level diagnostics on-site without lugging a laptop — and close more jobs in less time.
Used Truck Inspections
Don't buy someone else's problem. Pull active fault codes and check every system before you hand over cash — negotiate with data, not gut feel.
Wireless Freedom
No cables, no hassle. Pair via Bluetooth in seconds.
Your Phone, Your Tool
Works on Android & iOS — nothing extra to carry.
Always Up to Date
Software updates included with your subscription.
Real Human Support
U.S.-based diesel techs who actually know trucks.
Featured Articles & Latest News
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Buyer's Guide
OTR Diagnostics vs Proformance Link
New Versions & Features
Proformance link:Update: New Versions & Features
Why Choose Proformance?
500K+ Global Users
30-Day Money-Back Guarantee
1-Year Limited Warranty
5.0 Google Rating
Lifetime Customer Support
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