Electrical System Repair
We excel in diagnosing and repairing electrical system malfunctions to keep your fleet running efficiently.
OEM-Grade Components
Starters, alternators & sensors stocked for same-day installs.
Harness & Ground Restoration
Corrosion removed, new terminals crimped + heat-shrunk for long-life connections.
Load-Tested Guarantee
Every circuit verified under working amperage before the truck rolls out.
Reliable Power From Bumper to Taillight
Electrical problems can strand a truck as quickly as a blown tire. From corroded battery cables to failed alternators and mystery shorts, our Electrical System Repair program finds the fault and fixes it with OEM-spec parts and industry-best practices—getting your rig back on the road fast and keeping warning lights off for the long haul.
What’s Included in Our Electrical System Repair?
All the services needed to restore consistent, safe power flow:
Alternator & starter replacement
Battery cable and terminal rebuild
Fuse-box & relay panel cleaning
Chassis-ground inspection & re-torque
Wiring-harness splice / section repair
Lighting-circuit troubleshooting & fix
Sensor and ABS wiring replacement
Final load test & voltage-drop report
Why Choose Merx for Electrical Repairs?
Dealer-level quality with fleet-friendly speed:
EVT-Certified Technicians — specialists in heavy-duty electrical & electronic systems
Clean, Climate-Controlled Solder Stations — prevents moisture intrusion into new joints
Full Stock of OEM Alternators & Starters — Cat, Cummins, Detroit, Volvo, Paccar lines in inventory
2-Hour Average Turnaround for Common Repairs
Tailored Preventive Plans — optional annual cable & ground maintenance at fleet rates