Diesel Truck & Semi Repair in Lancaster & Columbus, Ohio by 365 Fleet Service

Keep Your Fleet Running Strong with Expert Diesel Mechanics

When your livelihood depends on reliable trucks, downtime isn’t an option. 365 Fleet Service provides professional diesel truck and semi repair across Lancaster, Columbus, Newark, and all of Central and Southwest Ohio. Our certified mechanics service all makes and models of heavy-duty and medium-duty diesel vehicles—from single work trucks to full commercial fleets. We perform repairs onsite, roadside, or in our Lancaster facility to keep your business moving with minimal interruption.

• Semi-trucks and tractor-trailers

• Box trucks and delivery vans

• Service trucks and utility vehicles

• Farm tractors and agricultural equipment

Whether it’s a blown turbo, electrical issue, brake problem, or routine maintenance, our team ensures fast diagnostics, dependable repairs, and clear communication every step of the way.

Comprehensive Diesel Truck & Semi Repair Services:

• Engine diagnostics and repair (Cummins, Caterpillar, Detroit, Power Stroke, Duramax & more)
• Transmission repair and replacement
• DPF cleaning and regeneration
• Brake, suspension & steering repairs
• Fuel system & injector service
• Turbocharger & EGR system repair
• Electrical and charging system diagnostics
• Cooling system and radiator service
• Air system and compressor repairs
• Mobile and roadside service available 24/7
• DOT inspections and preventive maintenance
• Fleet management and scheduled service tracking

Why Fleets Choose 365 Fleet Service:

• Experienced diesel technicians with decades of know-how
• Mobile service trucks equipped for field repairs
• Quick turnaround to minimize downtime
• Full-service fleet maintenance and rebuilds
• Trusted by trucking companies, farms, and contractors across six counties

Serving Central & Southwest Ohio:

We serve Fairfield, Franklin, Pickaway, Hocking, Perry, and Licking Counties, including Lancaster, Columbus, Newark, Circleville, Logan, New Lexington, Pataskala, and Grove City. Mobile mechanics cover I-70, I-71, I-270, I-670, US-22, US-33, and US-23 for roadside repairs.

Call 365 Fleet Service at 740-764-1451 for expert diesel truck and semi repair anywhere in Central or Southwest Ohio.