Our expert mobile technicians are equipped with top-of-the-line tools and diagnostics right in their trucks. They arrive to your location, or wherever your fleet happens to be, to perform scheduled maintenance and repairs on your trucks and trailers in an efficient and safe manner. You can trust that your fleet will be fine-tuned to keep running for the long haul.

We perform scheduled PM services tailored to fleet schedules and OEM specifications. Services include oil and fluid changes, filter replacements, tire rotation and inspection, brake checks, battery testing, multi-point inspections, and DOT compliance checks. Preventive maintenance reduces unplanned downtime and extends vehicle life.

Our technicians service all classes of vehicles including Class 6–8 trucks with full mechanical repair capabilities. This includes diagnostics and repair of engines (gas and diesel), manual and automatic transmissions, air and hydraulic brake systems, steering, suspension, cooling, and driveline components.

With access to 65,000+ emergency service providers, Cox Fleet delivers dependable 24/7 roadside assistance across Texas. From breakdowns along major freight corridors to after‑hours issues in metro and rural markets alike, we coordinate service quickly and provide transparent invoice auditing—getting your trucks back on the road with minimal disruption.

Cox Fleet provides certified ANSI inspections for aerial lifts and heavy equipment, helping fleets meet required safety and performance standards. Our trained technicians conduct thorough inspections, document findings, and identify any needed repairs—so your equipment stays compliant, safe to operate, and ready for work without unnecessary downtime.