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The #1 trusted Mobile Diesel Technicians in Dallas Fort Worth & Surrounding Cities. We bring the diesel repair shop to you with our industry certified technicians. Providing service 24/7, we are available to repair Diesel, Semi-Trucks, and Trailers. We service all makes and models of commercial trucks, and trailers for individual's as well as owner- operators.

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Call Us 24/7 For Your Mobile Diesel Repair Service

transmission repair diesel trucks
Starter and alternator repair diesel DFW
mobile fleet repair DFW
Best mobile diesel mechanic in Dallas Fort Worth

Why Choose Us

OnSite Mobile Service, LLC employs factory trained and certified technicians with over 20 years of experience. We understand the importance of keeping your fleet functioning, and guarantee impeccable, 24-hour service.

Our Mobile Services

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  • ​Electrical Systems

  • Starters

  • Charging Systems

  • Air And Hydraulic Brakes

  • Diesel And Gas Engine Repairs

  • Out Of Fuel Service

  • Tires

  • & More

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  • ​Complete Computer Diagnostics & Programming 

  • Oil Change-Truck & Refrigeration Units

  • A/C Maintenance & Repair -for all trucks

  • Check Engine Lights, Clearance Lamps,Side Reflectors

  • APU Repairs on Tractor Trailers

  • MaxForce Troubleshooting

  • Cat Engine Troubleshooting

  • Cummins Engine Troubleshooting

  • ThermoKing & Carrier Reefer Repair

  • Complete Safety Analysis

  • Drivability Problems

  • DPF & DOC Regeneration 

  • Tune - ups

  • Batteries

  • Water Pumps

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