Mobile Diesel Truck & Fleet Service
Marshall Mechanics provides professional mobile diesel repair, diagnostics, preventative maintenance, and roadside service throughout Utah. We bring experienced diesel technicians directly to your truck to minimize downtime and keep your business moving.
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Diesel Services We Offer
Mobile Diagnostics
On-site computer diagnostics to quickly identify diesel engine and system issues.
Engine Repair
Complete diesel engine repair, from minor fixes to major overhauls.
Brake Repair
Inspection and repair of air brake systems to keep your trucks safe and compliant.
Wheel Seals & Bearings
Replacement of worn wheel seals and bearings to prevent breakdowns.
Preventative Maintenance
Scheduled maintenance programs to reduce downtime and extend equipment life.
Oil & Filter Services
Professional oil and filter changes for heavy-duty diesel trucks and fleets.
Cooling System Repair
Radiator, hoses, and cooling system repairs to prevent overheating.
Fuel System Repair
Diagnosis and repair of fuel pumps, injectors, and fuel delivery issues.
Air System Repair
Service and repair of air lines, valves, and air system components.
Electrical Diagnostics
Troubleshooting and repair of wiring, sensors, and electrical faults.
Hydraulic Hose Replacement
On-site replacement of damaged or leaking hydraulic hoses.
Trailer Repairs
Mobile repair services for commercial trailers and equipment.
Suspension Repairs
Repair of suspension components to improve ride quality and safety.
Battery & Charging Systems
Testing and replacement of batteries, alternators, and charging systems.
Emergency Roadside Assistance
24/7 mobile diesel service to get you back on the road.
Vehicles We Service
Semi Trucks
Box Trucks
Dump Trucks
Medium-Duty Trucks
Fleet Vehicles
Trailers
Service Trucks
Commercial Diesel Equipment
Why Choose Marshall Mechanics
Mobile Field Service
Honest Pricing
Fast Response Times
Family-Owned & Operated
Experienced Diesel Technicians
Professional Workmanship
Downtime costs money. Our mission is to provide dependable, high-quality diesel repair that gets your equipment back to work quickly while delivering honest communication, quality workmanship, and dependable service every step of the way.
Recent Diesel Projects
Frequently Asked Questions
Do you provide mobile service?
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Yes. We specialize in mobile diesel repair and can dispatch a technician directly to your truck, yard, or job site.
What brands do you work on?
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We service most major diesel truck and equipment brands including Freightliner, Kenworth, Peterbilt, International, Volvo, Mack, and more.
How quickly can you respond?
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Response times vary by location and workload, but we always work to get to you as quickly as possible, especially for down trucks.
Do you work on fleets?
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Yes. We partner with fleet managers to provide ongoing maintenance, inspections, and repair services for small and large fleets.
Do you perform preventative maintenance?
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Yes. We offer scheduled preventative maintenance to help reduce unexpected breakdowns and extend the life of your equipment.
Do you offer emergency roadside service?
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Yes. Emergency roadside service is available for breakdowns, no-starts, and other urgent diesel issues.
When Equipment Stops.
We Roll.
Whether you need emergency repairs, scheduled maintenance, or fleet support, Marshall Mechanics is ready to help.