Diesel & fleet mechanic jobs across America

Diesel, heavy-truck and fleet vehicle mechanics. Heavy-truck and fleet work only. Outwork employer posts always show first. Partner listings below are labeled; apply on the partner site.

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Outwork Diesel & fleet jobs

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More Diesel & fleet jobs from partners

These listings come from trusted U.S. job networks. They are labeled, never Featured, and never ranked above Outwork employer posts. Apply on the partner site.

Partner inventory currently includes: USAJOBS.

Partner listing · via USAJOBS

Heavy Mobile Equipment Mechanic Leader

Defense Logistics Agency · New Cumberland Defense Logistics Center, PA

$34.05–$39.69 PH

Apply on USAJOBS ↗Report a problem
Partner listing · via USAJOBS

Heavy Mobile Equipment Repairer Supervisor

Army Tank-Automotive and Armament Command (TACOM) · Fort Leonard Wood, MO

$33.86–$39.5 PH

Apply on USAJOBS ↗Report a problem
Partner listing · via USAJOBS

Surface Maintenance Mechanic (Title 32) (Temporary Promotion Not To Exceed One Year)

Army National Guard Units · Fredericksburg, VA

$36.49–$42.63 PH

Apply on USAJOBS ↗Report a problem
Partner listing · via USAJOBS

SURFACE MAINTENANCE MECHANIC SUPERVISOR (D1291000)

Army National Guard Units · Mayaguez, Puerto Rico

$33.97–$39.59 PH

Apply on USAJOBS ↗Report a problem

Showing 24 of 150 partner listings in this niche.

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Diesel mechanic career guide

Pay snapshot: national median $61,770 a year ($29.70/hr); 10th–90th percentile $44,530–$88,740. Occupation: Bus and Truck Mechanics and Diesel Engine Specialists (SOC 49-3031), BLS OEWS May 2025. See the full diesel mechanic pay guide with state table.

What diesel mechanics do

Diesel and heavy-truck mechanics inspect, diagnose and repair the engines, drivetrains, brakes, electrical systems and hydraulics on trucks, buses, construction and military equipment. A typical day mixes scheduled preventive maintenance (PM) with diagnostic work: reading fault codes with OEM software, tracing wiring problems, rebuilding components and road-testing the unit before it goes back into service.

Many listings here come from fleet and government shops: Heavy Mobile Equipment Repairers and Mechanics, Surface Maintenance Mechanics who keep wheeled and tracked vehicles mission-ready, and fleet vehicle mechanics. These jobs usually come with steady hours, benefits and a clear pay-grade ladder.

How to get hired

Many shops hire entry-level techs from a diesel technology certificate or associate program, and some hire helpers and lube techs who want to learn on the job. Military vehicle-maintenance experience is valued, especially for federal and National Guard jobs.

ASE Medium/Heavy Truck (T-series) certifications are the common way to prove skill and move up pay steps. A CDL helps a lot because you can road-test what you fix. Bring your own tools if you have them, and keep a list of the engine makes and diagnostic software you have used.

What we include and what we do not

Outwork lists diesel, heavy-truck and fleet mechanic work only. We do not list automotive repair, collision or body shops, car dealerships, tire and lube shops, or towing. If a listing slips through that is not heavy-truck or fleet work, tell us on the feedback page and we will remove it.

FAQ

Do I need a CDL to be a diesel mechanic?

Not always, but many fleets prefer it or require it so you can road-test trucks and move equipment. Check each listing.

What certifications help most?

ASE Medium/Heavy Truck (T-series) certifications, plus OEM engine and diagnostic-software training. Federal jobs list their own qualification requirements in each announcement.

How much do diesel mechanics make?

BLS OEWS May 2025 puts the national median for Bus and Truck Mechanics and Diesel Engine Specialists (SOC 49-3031) at $61,770 a year ($29.70/hr). The middle half earned $50,540–$75,470.

Pay source: U.S. Bureau of Labor Statistics, OEWS May 2025 national estimates, SOC 49-3031. Listings: Outwork employer posts plus labeled partner feeds (for example USAJOBS). Get diesel mechanic job alerts.