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18 Wheeler Repair Service in Dallas–Fort Worth & Houston
When your 18-wheeler breaks down, every minute of downtime hits your schedule and income. Our certified technicians come to your breakdown — roadside, truck stop, weigh station, job site or yard — to fix the tractor, trailer, tires and wheels on the spot. No towing needed in most cases.
- 24/7 dispatch
- Certified diesel techs
- Upfront quotes
- Mobile wheel repair
18 wheeler semi truck service and repair
Your big rig repaired where it stopped — no tow needed
At Mobile Diesel Truck Repair, we deliver fast, professional and fully mobile 18 wheeler repair service across the Dallas–Fort Worth Metroplex and Houston. Our certified technicians arrive fully equipped to diagnose and repair your tractor-trailer on the spot — whether it’s a blown tire, a damaged wheel, an air brake issue, an electrical fault or derate mode.
Because an 18-wheeler is two machines working together, we service the whole rig in one visit: engine, transmission, air brakes, electrical, aftertreatment, trailer connections, tires and wheels. Our goal is simple — minimize your downtime and get you back on the road fast.
Trailers we repair
What's your 18-wheeler doing?
Tap the symptom closest to yours. We’ll show the usual causes and how we fix it on-site.
- Blown steer, drive or trailer tire
- Puncture or bad valve stem
- Damaged bead or rim seat
How we handle it
Tire replaced or repaired on-site, wheel and rim inspected, lugs torqued to spec.
Common causes
- Bent or cracked rim.
- Damaged lug nuts or studs.
- Bearing or wheel seal failure.
How we fix it
Our mobile wheel repair service replaces studs, nuts, seals or rims and re-torques everything.
- Cracked air line
- Leaking gladhands
- Failed brake chamber
How we fix it
Leak traced, parts replaced, system tested to build and hold pressure.
- Damaged 7-way plug
- Gladhand or air line separation
- Fifth wheel or kingpin problem
How we fix it
Plugs, pigtails, air lines and coupling repaired.
- Clogged DPF
- NOx, EGR or DEF sensor
- DEF pump or heater
How we fix it
OEM-level code read, forced regen, failed part replaced.
- Weak batteries
- Failed starter
- Fuel delivery problem
How we fix it
Battery test, jump start, starter replacement, fuel priming.
- Burst hose
- Water pump or thermostat
- Fan clutch
How we fix it
Hoses, belts, thermostats and pumps replaced, system pressure-tested.
- Wiring short
- Failing alternator
- Relay or sensor
How we fix it
Circuit traced, wiring repaired, lighting restored.
Complete 18-wheeler repair services
Every major system on your tractor-trailer, repaired on-site
Our mobile units carry diagnostic laptops, heavy-duty tools and common parts, so most of these repairs are finished in a single visit.
Engine repair & diagnostics
Common problems we fix on all major engines.
- Loss of power
- Excessive smoke
- Turbocharger issues
- Fuel system problems
- Oil leaks
- Overheating
- Fault codes
- Failed sensors
Transmission & driveline
Shifting trouble, clutch wear and vibration repaired on location.
- Clutch replacement
- Driveline & U-joints
- Gear shifting
- Transmission diagnostics
- Fluid service
- Flywheel repair
Electrical system repair
A top cause of roadside breakdowns.
- Alternators
- Starters
- Batteries
- Wiring
- Trailer plugs
- Lighting
- Dash warnings
- Sensors & relays
Air brake system repair
Your brakes must be flawless.
- Air leaks
- Brake chambers
- Slack adjusters
- Hoses & lines
- ABS issues
- Emergency brake problems
DEF, DPF & aftertreatment
Out of derate and back to full power.
- DPF regeneration
- DEF pump & heater
- NOx sensors
- EGR valve
- Derate mode
- SCR failures
Trailer & coupling repair
Tractor and trailer safely connected.
- Plugs & pigtails
- Gladhands & air lines
- Fifth wheel
- Kingpin checks
- Trailer brakes & ABS
- Landing gear
Professional wheel repair for 18-wheelers — at your truck
Searching for “mobile wheel repair near me” with a damaged wheel on the shoulder? Our wheel repair services come to you. We repair and replace tires, rims and wheel-end parts on tractors and trailers across DFW and Houston, 24/7.
A cracked rim, sheared stud or failed wheel seal is more than a tire problem — it’s a safety and DOT issue. Every wheel repair service call includes an inspection of the rim, studs, nuts, hub and seal, so you leave with a wheel end that’s safe to run, not just a new tire.
Tire & blowout service
on-site repair, blowouts, new tires, trailer tires
Rim inspection & replacement
bent, cracked or corroded rims; we'll say honestly if repair or replace
Studs, lug nuts & torque
replaced and torqued to spec
Hubs, bearings & wheel seals
serviced before they cause a fire or lost wheel
Need immediate roadside help?
Pull over safely, hazards on, triangles out — then call. We’ll get your location and send the nearest mechanic.
Mobile vs. shop comparison
Skip the tow Skip the shop line.
For most 18-wheeler breakdowns, sending a mechanic to the truck is faster and cheaper than sending the truck to a mechanic. If a repair needs a shop lift, we’ll tell you upfront and arrange heavy-duty towing.
Mobile Diesel Truck Repair
Tow to a shop
Getting started
- Mechanic drives to your truck
- Book a tow, then wait for it
Towing cost
- Usually none
- Heavy-duty tow fees added
Downtime
- Most repairs done in one visit
- Waiting for a bay, often days
Where
- Roadside, truck stop, yard or dock
- Only at the shop
Hours
- 24/7, nights and weekends
- Business hours
Pricing
- Quoted upfront before work starts
- Often quoted after teardown
How it works
From breakdown to back on the road
Requesting mobile trailer repair service takes one call.
1
Call dispatch
Share your location, truck and symptoms. A real person answers 24/7.
2
Quote & ETA
Likely fix, upfront price and arrival time.
3
On-site repair
Diagnostics and repair right where the rig is parked.
4
Roll again
Clear invoice, test run, back on the road.
All our services
Explore every mobile diesel service
One team for your truck, trailer, tires and fleet — all delivered to your location across DFW.
18 Wheeler Repair
Whole-rig service — tractor, trailer and tires in one visit.
Emergency Roadside Repair
We come to you anywhere in DFW — no tow truck, no shop line.
Trailer Repair Services
Brakes, lights, landing gear and suspension for every trailer type.
Fleet Maintenance
Preventive maintenance and DOT inspections at your yard.
Diesel Truck Mechanic
Dealer-level diagnostics for semis, box trucks and pickups.
Semi Truck Repair
Engine, air brake, electrical and drivetrain repair for Class 8 trucks.
Mobile Tire Service
Roadside steer, drive and trailer tire repair and replacement.
Not sure what you need?
Call (972) 433-9450 and describe the problem — we'll diagnose it on-site.
18 wheeler repair near you
If you’re in DFW or Houston, we’ll come to you.
Semis on the Stemmons, LBJ and I-45 corridors and at Inland Port warehouses.
Regional carriers and delivery semis along US-75 and the Tollway.
Haulers and regional freight on the eastern edge of the metro.
Both branches of the I-35 split and the Alliance logistics corridor.
Warehouse and dock repairs across Carrollton’s industrial parks.
Great Southwest industrial district and the mid-cities.
Trucks running the I-45 lane and Houston-area routes — call to confirm ETA.
- Nearby cities
We also serve Fort Worth, Arlington, Irving, Garland, Lewisville and Mesquite.
18 Wheeler repair questions
Straight answers about response times, pricing and what we fix on-site.
Do you offer 24/7 mobile 18-wheeler repair service?
Yes — across Houston and DFW, on highways, truck stops, weigh stations, yards and job sites, day or night.
What types of 18-wheelers do you work on?
Freightliner, Peterbilt, Kenworth, International, Volvo, Mack and Western Star, with Cummins, Detroit Diesel, PACCAR, Caterpillar, Volvo, Mack and Navistar engines.
What repairs can you do roadside on an 18-wheeler?
Engine diagnostics, air brakes, no-starts, electrical, batteries, alternators and starters, tire blowouts, wheel and rim damage, DEF/DPF faults, overheating, and trailer plug and lighting issues.
Do you offer mobile wheel repair near me?
In DFW or Houston, yes. Our mobile wheel repair service replaces tires, damaged rims, broken studs and lug nuts, and leaking wheel seals at your truck.
Are there places that repair rims for semi trucks?
Rim shops exist, but getting an 18-wheeler there means a tow or a detour. We inspect bent or cracked rims on-site and replace them when unsafe; if a rim can be repaired, we’ll tell you upfront.
Do you handle DEF, DPF and derate mode problems?
Yes — derate, DEF and DPF warnings, repeated regens and aftertreatment codes.
What areas do you serve?
Dallas, Fort Worth, Irving, Arlington, Carrollton, Grand Prairie, Garland, Denton, Plano, Lewisville, Mesquite, Wylie, plus Houston.
How do I request mobile 18-wheeler repair service?
Call (972) 433-9450 for emergency or same-day service, or use the contact form for planned repairs, DOT inspections or fleet maintenance.
A complete guide to 18 wheeler repair service in Dallas–Fort Worth and Houston
What is a mobile 18 wheeler repair service?
A certified heavy-duty technician in a fully equipped service truck repairs your rig at the breakdown — highways, truck stops, rest areas, weigh stations, job sites, distribution centers and parking lots.
Tractor and trailer repairs on-site
Engine, transmission and aftertreatment
Air brakes and ABS
Electrical and trailer connections
Mobile wheel repair: tires, rims and wheel ends
- Tire repair and blowout service
- Rim inspection and replacement
- Stud and lug nut replacement with proper torque
- Hub, bearing and wheel seal service
Professional wheel repair vs. places that repair rims
For an 18-wheeler, a rim shop usually means a tow or a long detour. A professional wheel repair service that comes to you checks the full wheel end on-site and torques it correctly before you drive away.
Finding a mobile wheel repair service near me
Anywhere in DFW or Houston, call dispatch with your location, the wheel position and what you see — flat, bent rim, wobble or leaking hub.
What to do when your 18-wheeler breaks down
Pull off safely, hazards on · triangles out · note highway, direction and mile marker · note warning lights and which wheel or axle · call (972) 433-9450 and mention hazmat or reefer loads.
Fleet maintenance for 18-wheelers
Customized programs for owner-operators, logistics, regional, long-haul, hotshot and local delivery fleets — DOT inspections, PM, aftertreatment, electrical, brakes, tires and wheels. Learn more about our fleet maintenance options.
18 wheeler repair across DFW and Houston
Service areas: Dallas, Plano, Wylie, Denton, Carrollton, Grand Prairie, Houston, Fort Worth, Irving, Arlington, Garland, Lewisville, and Mesquite.
Related services
Our comprehensive services include semi truck repair, trailer repair services, on-demand mobile tire service, fast emergency roadside repair, and expert care from a diesel truck mechanic.
Keep your truck moving — and your load on schedule.
24/7 mobile 18-wheeler repair, roadside service and fast dispatch across DFW and Houston.