Mobile Diesel & Trailer Mechanic II Mon - Fri Third Shift
Listed on 2026-08-09
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Trades / Skilled Labor
Diesel Mechanic, Heavy Equipment Mechanic
Mobile Diesel & Trailer Technician
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. Cox Fleet also services customers utilizing its 20+ nationwide service centers; each offering select services, such as accident repair, paint, refurbishment, and heavy mechanical repair. Supported by a 24/7 in-house call-center, Cox Fleet provides maintenance scheduled and unscheduled services to fleets anywhere, anytime.
COX FLEET is currently hiring a Mobile Diesel & Trailer Technician will be responsible for performing licensed DOT inspections, Preventative Maintenance inspections, light and follow-up repairs, light mechanical/hydraulic/electrical and electronic diagnostics, and other duties as assigned. The Mobile Diesel & Trailer Technician can perform more advanced diagnostics and repairs under the supervision of a Sr Mobile Diesel Technician or higher. The Diesel & Trailer Technician continues to learn additional advanced mechanical skills and diagnostic techniques.
A successful Diesel & Trailer Technician complies with all company policies and achieves high level performance metrics.
- 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 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. - 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
- 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. - 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.
- 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.
- Accurately complete DOT forms and all other forms of documentation in a timely fashion.
- Work with a high degree of independence and manage own daily schedule.
- Maintain a high level of productivity and be able to work within or close to most Standard Repair Times.
- Obtain parts from approved local and national vendors as necessary for the repairs to be performed.
- Communicate with management and support team via email or phone to obtain approvals on repair estimates, retrieve purchase order numbers and/or discuss RO findings notes.
- Perform all work in compliance with organizational safety, health and environmental policies, and federal regulations, to include OSHA, EPA, and DOT.
- Maintain company issued service truck, conduct safety checks and daily pre/post trip inspections.
- High School Diploma/GED and 3 years' experience in a related field. The right candidate could also have a different combination, such as any level degree/certification beyond a HS diploma/GED in a related discipline; or 5 years' experience in a related field.
- Possess and supply a set of hand tools necessary to perform required job duties.
- Obtain Automotive Service Excellence (ASE)…
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