Diagnostic Tools

Short answer: The Caterpillar Communication Adapter 3 (CA3, commonly listed under kit number 478-0235) is the USB interface box that lets Cat ET communicate…

Short answer: Bucket teeth for excavator work are the replaceable cutting points pinned or bolted to the bucket’s cutting edge, and picking the right set…

Short answer: For most diesel mechanics and fleet technicians, the best heavy duty truck scanner with DPF regen in 2026 is the FOXWELL HD500. It reads both…

Short answer: For most diesel mechanics and fleet owners in 2026, the Autel MaxiSys MS908CV II is the best heavy-duty truck scanner in the Autel lineup — it…

To clear fault codes on Cummins INSITE, open the Fault Codes window, right-click, choose Refresh All Faults and click All. Only inactive codes will clear, and a…

INSITE Lite is the edition of Cummins INSITE that covers diagnostics, live data and parameters - everything in Pro except calibration download. Here is what it…

J1939 vs J1708: Understanding the Two Diagnostic Protocols Every diesel technician eventually encounters both J1939 and J1708 protocols when connecting…

CAT ET vs Cummins Insite: Why You Need Both If you run a mixed fleet or independent repair shop, you will eventually face the CAT ET vs Cummins Insite decision.…

What Is Engine Fault Code P0087? P0087 is a generic OBD-II diagnostic trouble code defined as "Fuel Rail/System Pressure — Too Low." On diesel engines, this…

The FOXWELL HD500 Heavy Duty Truck Scanner has quickly become one of the most talked-about diagnostic tools among diesel mechanics in 2026. Promising…