Sr Mobile Diesel & Trailer Mechanic
Listed on 2026-01-17
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Trades / Skilled Labor
Heavy Equipment Mechanic, Diesel Mechanic
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Cox Fleet - A Cox Automotive Company keeps your fleet moving!
Headquartered in Indianapolis, Cox Fleet by Cox Automotive has grown to become one of the largest fleet maintenance companies in the country.
Cox Fleet is the leading provider of on-site mobile maintenance and repair services nationwide, offering mobile on-site fleet service for light medium, and heavy-duty trucks and trailers. Fleet Services also services customers utilizing its 50+ nationwide service centers; each offering accident repair, painting, refurbishment, and heavy mechanical repair. We are supported by a 24/7 in-house call-center and provide scheduled maintenance services and unscheduled services to fleets anywhere, anytime.
Cox Fleet is currently hiring a Sr. Mobile Diesel & Trailer Mechanic. A Sr. Mobile Diesel & Trailer Mechanic will be responsible for performing licensed DOT inspections, Preventative Maintenance inspections, light and advanced repairs, advanced mechanical/hydraulic/electrical and electronic diagnostics, and other duties as assigned. Heavily relied upon for advanced diagnostics and triage of complicated repairs by Mobile Diesel Technician I/II. Considered the Lead on jobsites by customers and Technicians.
Functions as a consultant on the customer's behalf. A successful Sr. Mobile Diesel & Trailer Mechanic complies with all company policies and achieves high level performance metrics.
DUTIES:
- Perform scheduled preventative maintenance ("PM"), DOT Inspections and follow up repairs on light, medium and heavy-duty vehicles in a mobile/field environment.
- Perform minor adjustment and repairs on various types of trailers equipment and systems including, but not limited to the following: aluminum and chem-lite, trailer brakes, air lines, auxiliary pumps, and engines, liftgates, and brake chambers.
- Perform minor adjustment and repairs on various types of truck equipment including, but not limited to the following:
Electrical/Brake/Cooling Systems, Starters/Alternators, Fan clutches, Engine electronics, Diesel steering systems, Engines (gas and diesel), Transmissions (manual and automatic), Clutches, Differentials, etc.
- Diagnose, adjust, and perform repairs on various types of trailer equipment, and systems including, but not limited to the following: aluminum and chem-lite, trailer brakes, air lines, auxiliary pumps and engines, liftgates, brake chambers, welding, fabrication, replacement of panels, body, and framework.
- Diagnose, adjust, and repair various types of truck equipment including, but not limited to the following:
Electrical/Brake/Cooling Systems, Starters/Alternators, Air conditioning systems, Fan clutches, Engine electronics, Diesel steering systems, Engines (gas and diesel), Transmissions (manual and automatic), Clutches, Differentials, etc.
- Inspect, test, and listen to defective equipment to diagnose malfunctions, using test instruments such as handheld computers and pressure gauges.
- Road test vehicles to diagnose malfunctions and to ensure that they are working properly.
- Identify problems, determine accuracy and relevance of information, using sound judgment to generate and evaluate alternatives.
- Independently manage parts inventory and equipment provided on company-issued service truck and perform periodic reconciliation.
- Maintain and operate company-issued service vehicle, conduct safety checks, and pre-/post-trip inspections of vehicle.
- Work with and listen effectively to clients and customers to assess their needs, providing information or assistance, resolving their problems, or satisfying their expectations.
- Manage concurrent assigned tasks, making effective judgments as to prioritizing work related activities and time allocations.
- Use hand tools, precision instruments, as well as Diesel tools, welding equipment, lift and jacks.
- Document according to company standards and upload pictures of work performed, parts used, and all findings observed on Repair Orders ("RO") using company-issued iOS device and our proprietary TRAIT application.
- Accur…
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