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Field Diesel Mechanic

Job in Earth City, St. Louis city, Missouri, 63045, USA
Listing for: United-Rentals-a3e42836
Full Time position
Listed on 2026-06-29
Job specializations:
  • Trades / Skilled Labor
    Heavy Equipment Mechanic, Diesel Mechanic, Maintenance Technician / Mechanic, Field/Service Technician
Salary/Wage Range or Industry Benchmark: 50000 - 70000 USD Yearly USD 50000.00 70000.00 YEAR
Job Description & How to Apply Below
Location: Earth City

Great company. Great people. Great opportunities.

If you’d like the chance to make your mark with the world’s largest equipment rental provider, come build your future with United Rentals!

As a Field Diesel Mechanic (Service Tech IV
- Field Service), you’ll use your skills to perform maintenance and repairs of complex equipment with limited or no supervision in a highly skilled, safe, and professional manner. Every day, you can improve and challenge yourself, and if you have the desire and ambition, you’ll have the potential to work towards leadership roles in our Service Department. Like every member of our team, we will rely on you to provide exceptional customer service to our customers.

What you'll do:

Maintenance and repair of complex mechanical, electrical, hydraulic, and diesel systems on a variety of rental and customer equipment and tools while using a high degree of independent judgment

Travel to customer job sites for repair/maintenance of rental or customer owned equipment; must maintain service vehicle in a clean and professional manner

Assist in the training of lower level technicians as needed

Maintain paperwork/electronic documentation of work performed (work orders) in a complete and timely manner on a daily basis

Assist with pick-up and delivery of equipment & parts

Other duties assigned as needed

Requirements:

High School diploma or equivalent

Valid driver's license with acceptable driving record5+ years of experience repairing/maintaining equipment and tools

Advanced mechanical aptitude and working knowledge of tools

Extensive knowledge of construction equipment with an advanced understanding of schematics and diagrams

Must own tools applicable to position

Superior customer service, teamwork and verbal/written communication skills

Ability to frequently lift items up to 45 lbs.

This position is deemed Safety Sensitive for purposes of United Rentals’ policies and procedures.

Field Service Tech IV – Utility Truck Road Service If you’d like the chance to make your mark with the world’s largest equipment rental provider, come build your future with United Rentals!

United Rentals Commercial and Utility Trucks is seeking a skilled and dedicated Road Service Utility Truck Mechanic to join our fleet maintenance team. If you are a seasoned heavy-duty mechanic with expertise in buckets, pulling and stringing, diesel, and hydraulic systems and have a commitment to safety and quality, we want to talk to you. You'll be responsible for ensuring our fleet of utility and service vehicles is maintained to the highest standards, playing a critical role in keeping our operations running smoothly.

What you’ll do:

Perform inspections, diagnostics, and repairs on a wide variety of diesel and gasoline-powered vehicles and heavy equipment, such as dump trucks, bucket trucks, and specialty utility vehicles.

Troubleshoot and repair complex issues within hydraulic, electrical, pneumatic, and braking systems.

Conduct routine preventive maintenance, including oil changes, tire service, and lubrication, to maximize fleet longevity and performance.

Utilize diagnostic software and technical manuals to identify malfunctions and determine the best course of action.

Perform welding and fabrication for equipment repair and modification as needed.

Maintain accurate and timely service records, repair logs, and documentation.

Ensure all work complies with federal, state, and company safety standards and procedures.

Perform annual DOT and Dielectric testing on insulated equipment.

Other duties as assigned

Requirements:

High school diploma or equivalent5+ years of experience as a heavy-duty diesel or truck mechanic, with hands-on experience on buckets, and hydraulic systems

Valid Commercial Driver's License (CDL) with relevant endorsements is required or must be obtained

Experience with a wide range of utility equipment is a plus, including cranes, pulling and stringing equipment and dielectric testing equipment

Strong troubleshooting and problem-solving skills

Excellent communication skills and the ability to work independently or as a team Commitment to maintaining a safe and organized work environment

Will require some overnight travel to…
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