// 01
Class 8 Trucks
Highway tractors, vocational trucks, day cabs, and sleeper units.
- Engine diagnostics and drivability
- Air, brake, and suspension repair
- Electrical, charging, and starting systems
- Cooling, fuel, and exhaust systems
// MTG Shops — Repair Scope
One Shop for the
Whole Fleet
No-start tractors, dragging trailer brakes, air leaks, aftertreatment faults, wheel ends, electrical gremlins — we handle all of it under one roof and one invoice, instead of sending you to three vendors.
All makes and models, medium duty through heavy duty, in the shop or at your location.
MTG Shops service bays — heavy-duty truck & trailer repair
// 02
Trailers
Dry vans, reefers, flatbeds, tankers, and specialized equipment.
- ABS, brakes, hubs, and wheel ends
- Lights, wiring, and connector repair
- Air systems, landing gear, and suspension
- Tire service and roadside flat repair
// 03
Mobile & Emergency
Roadside, yard, jobsite, and after-hours service across our coverage areas.
- Breakdown diagnostics and repair
- Air leaks, no-starts, and electrical faults
- Brake, tire, and wheel-end emergencies
- Parts sourcing and rapid replacement
// Scheduled & program service
Planned maintenance, on your schedule
Onsite Scheduled Service
We bring the shop to your yard, terminal, or jobsite on a set schedule instead of waiting for a breakdown. Units are staged and serviced where they park — PM services, brake and wheel-end checks, tire rotations, lighting and air-system repairs, fluid and filter changes, and DOT-focused inspections. Scheduling recurring onsite visits keeps trucks in the rotation, cuts tow and downtime costs, and gets small faults corrected before they strand a driver.
- ▸Recurring weekly, bi-weekly, or monthly visits
- ▸Multiple units serviced in a single dispatch
- ▸Repairs completed onsite whenever parts allow
- ▸Findings documented for your maintenance records
Fleet Maintenance Programs
For carriers running multiple tractors and trailers, we build a maintenance program around your equipment mix, mileage intervals, and lanes. Service intervals, inspection checklists, and repair priorities are set up front, so your team knows what is coming due and what needs attention now. Programs can cover tractors, trailers, and medium-duty units across all of our Colorado, Wyoming, and Texas coverage areas.
- ▸Custom PM intervals by unit and mileage
- ▸Inspection and repair history per unit
- ▸Consolidated dispatch across locations
- ▸Priority response for enrolled fleets
Inquire about this program
Dedicated Technician Program
Need coverage on nights or weekends when your trucks are actually parked? You pick the window — Saturday mornings, Sunday overnights, weeknights after the last load drops — and we build a dedicated technician assignment around it. The same tech learns your equipment, your standards, and your paperwork, so the work gets faster and more consistent every visit.
- ▸Night, weekend, and off-hours windows
- ▸Consistent technician assigned to your fleet
- ▸Service truck stocked for your equipment mix
- ▸Scope and schedule built to your requirements
Inquire about this program
Ready to set up onsite scheduled service, a fleet maintenance program, or a dedicated technician window? Call dispatch at (303) 476-3622 or email dispatch@mobiletginc.com with your unit count, locations, and preferred service days — we'll build the program around your operation.
// Common repairs
Truck & trailer repairs we handle
Mobile or in-shop, our technicians cover the systems below on tractors, trailers, and medium-duty commercial equipment. If a repair is not listed, call dispatch — chances are we handle it.
01
Engine Support & Cooling
- Starter repair & replacement
- Alternator repair & replacement
- Radiator replacement
- Water pump replacement
- Turbo replacement
- Charge air cooler repair
- Fan clutch & fan hub replacement
- Coolant hose & thermostat replacement
- Belt, tensioner & pulley replacement
- Oil & coolant leak repair
- Engine sensor diagnostics
- Fuel pump & injector service
- Fuel filter & water separator service
- Air intake & filter service
- No-start diagnostics
02
Driveline & Powertrain
- Transmission repair
- Clutch replacement & adjustment
- Axle repair
- Differential repair
- Driveshaft & U-joint replacement
- Wheel seal & hub service
- Wheel bearing replacement
- PTO service
- Transmission cooler & line repair
- Gear oil service
03
Emissions & Aftertreatment
- DEF / SCR system repair
- DEF pump, injector & tank service
- DPF diagnostics & service
- EGR valve & cooler service
- NOx & exhaust sensor replacement
- Exhaust & clamp repair
- Regen fault troubleshooting
- Check-engine fault-code diagnostics
04
Brakes, Air & Suspension
- Air brake repair
- Brake chamber & slack adjuster replacement
- S-cam, shoe & drum service
- Air compressor & dryer replacement
- Air line & fitting repair
- ABS diagnostics & repair
- Suspension repair
- Air bag & leveling valve replacement
- Shock & spring replacement
- Kingpin & bushing service
- Steering & alignment component repair
- Fifth wheel service
05
Electrical & Lighting
- Lighting repair
- Harness & wiring repair
- Battery & cable replacement
- Charging system diagnostics
- Trailer plug & connector repair
- Dash gauge & switch repair
- Marker, stop & turn light replacement
- Camera & backup sensor wiring
- APU electrical troubleshooting
06
Hydraulics & Accessories
- Hydraulic repair
- Hydraulic hose & fitting replacement
- Hydraulic pump & cylinder service
- Wet kit service
- Lift gate repair
- Dump & hoist system repair
- Power steering repair
- HVAC & A/C repair
- Reefer support & troubleshooting
- Auxiliary heater service
07
Trailer Repair
- Trailer door repair
- Trailer floor repair
- Roll-up & swing door hardware repair
- Trailer brake & wheel-end service
- Trailer air system repair
- Landing gear repair
- Trailer suspension & spring repair
- Trailer light & wiring repair
- Roof, panel & skin repair
- Mud flap, bumper & rail repair
- Reefer trailer bulkhead repair
- Trailer ABS repair
08
Tires, Wheels & Inspection
- Mobile tire repair & replacement
- Steer, drive & trailer tire service
- Tire pressure & tread inspection
- Wheel & rim replacement
- Torque & lug service
- DOT inspection support
- Pre-trip & post-trip inspections
- Preventive maintenance (PM) service
- Fluid & filter changes
- Roadside breakdown diagnostics
Note: we do not perform engine rebuilds.
// Medium-duty fleet vehicles
Box trucks & medium-duty fleet repair
It isn't just Class 8. MTG Shops services medium-duty fleet vehicles — box trucks, straight trucks, vans, and work-body chassis — in our shops or onsite at your yard with our mobile units.
Box trucks & straight trucks
Class 3–7 medium-duty trucks
Cargo & cutaway vans
Flatbed, dump & utility bodies
Stake beds & landscape trucks
Refrigerated / reefer box units
Shuttle buses & passenger vans
Tow trucks & roll-back carriers
Mechanical repair
- Diesel & gas engine diagnostics
- Brakes, hydraulic & air systems
- Suspension, steering & alignment issues
- Cooling, charging & starting systems
Body & box repair
- Roll-up & swing door repair
- Liftgate service and adjustment
- Box panel, floor & threshold repair
- Lighting, wiring & harness repair
Fleet PM & compliance
- Scheduled PM service intervals
- DOT inspections & documentation
- Onsite fleet inspections at your yard
- Repair planning & service history
Specialty systems
- Reefer unit troubleshooting support
- A/C & HVAC service
- Liftgate & hydraulic power units
- Tire service and replacement
Schedule medium-duty fleet service
Mixed fleet of trucks and box trucks? We'll build one maintenance schedule that covers all of it.
// Dedicated repair services
Find the repair
your equipment needs
Mobile Truck Repair
24/7 onsite commercial truck repair for roadside breakdowns, yards, terminals, and jobsites.
Service detailsRoadside Diesel Repair
Mobile diesel mechanics for urgent tractor and commercial vehicle repairs when equipment cannot reach a shop.
Service detailsTrailer Repair
Mobile and shop trailer repair for dry vans, reefers, flatbeds, and commercial equipment.
Service detailsDOT Inspections
Fleet-focused maintenance support to help identify truck and trailer issues before they become roadside failures.
Service detailsTruck Brake Repair
Commercial truck and trailer brake service for roadside faults, fleet yards, and shop repairs.
Service detailsTruck Electrical Repair
Mobile electrical diagnostics for no-starts, lighting failures, charging issues, and trailer connections.
Service detailsDPF & Emissions Diagnostics
Diesel diagnostics for check-engine conditions, drivability concerns, and emissions-related fault codes.
Service detailsCommercial Tire Service
Mobile commercial tire support for roadside flats, replacement needs, and wheel-end emergencies.
Service details// From the MTG blog
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