Semi, Fleet & Equipment Repair
Dedicated mobile maintenance and repair programs for commercial trucking fleets — from owner-operators to large multi-unit operations. We come to your yard, terminal, or job site and keep every unit running, compliant, and on schedule.
Built for Fleet Operators
Running a fleet means every hour of downtime is a missed load. Road Wrench is structured to serve fleet operators — not just individual trucks.
We Come to Your Yard
No pulling units off route to a shop. We service your fleet at your terminal, yard, or anywhere in Arizona.
Minimize Fleet Downtime
Faster turnaround than a shop visit. We work around your dispatch schedule to keep every unit moving.
DOT Compliance Built In
Every service is performed by certified technicians who know DOT regulations — keeping your fleet legal and out of violation.
Dedicated Fleet Accounts
Priority dispatch, volume pricing, and a single point of contact for fleets running multiple units across Arizona.
Service for Every Fleet Size
- Scheduled PM visits
- Priority emergency dispatch
- Single-unit service agreements
- Custom per-unit PM schedules
- Dedicated account contact
- Volume service pricing
- Priority dispatch across all units
- Fleet health reporting
- Full fleet maintenance programs
- On-site yard service days
- DOT compliance management
- Multi-unit diagnostic scanning
- Custom service agreements
- Dedicated dispatch line
Complete Fleet Service Coverage
Scheduled Fleet PM Programs
Custom preventive maintenance schedules built around your fleet size, routes, and operating hours — keeping every unit compliant and on the road.
- Per-unit PM schedules (mileage or time-based)
- Oil, filter, and fluid change programs
- DOT inspection preparation for every unit
- Tire rotation, inspection, and replacement
- Belts, hoses, and cooling system service
- Pre-trip and post-trip inspection support
Semi Truck Fleet Repair
Full mechanical repair for Class 6–8 semi trucks and tractor-trailers — performed at your yard, terminal, or anywhere in Arizona.
- Engine repair: Cummins, Detroit, PACCAR, CAT
- Transmission and drivetrain service
- Brake system repair and DOT compliance
- Electrical, ECM, and sensor diagnosis
- DEF/DPF/EGR system service
- Cooling, fuel, and air system repairs
Trailer Fleet Service
Keep your entire trailer fleet road-legal and operational with on-site inspections and repairs — no shop required.
- Trailer brake and ABS inspection and repair
- Air line, glad hand, and valve service
- Landing gear, kingpin, and fifth wheel
- Lighting, wiring, and electrical systems
- Annual trailer DOT inspections
- Reefer unit electrical support
DOT Compliance Management
Stay ahead of inspections and violations. We keep your fleet DOT-compliant across every unit, every cycle.
- Annual DOT inspection preparation
- Brake performance and adjustment
- Lighting and reflector compliance
- Steering and suspension inspection
- Out-of-service violation repairs
- DVIR support and documentation
Fleet Diagnostics & Reporting
Advanced diagnostic tools deployed across your fleet to catch issues before they become breakdowns or violations.
- Multi-unit diagnostic scanning
- Fault code analysis and fleet reporting
- Emissions system diagnosis
- Predictive maintenance recommendations
- Fleet health summaries per unit
- Remote diagnostic support
Heavy Equipment Service
Mobile repair and PM for construction, agricultural, and industrial equipment — serviced at your job site or yard.
- Diesel engine diagnostics and repair
- Hydraulic system inspection and service
- Electrical and sensor fault diagnosis
- Undercarriage and drive system repairs
- Scheduled PM programs for equipment
- On-site service at job sites and yards
Ready to Set Up a Fleet Program?
Tell us your fleet size, unit types, and service area. We'll build a custom maintenance program with scheduled visits, priority dispatch, and volume pricing.
Keep Your Fleet Moving.
Call now to schedule on-site fleet service or discuss a custom maintenance program for your operation.