Diesel repair · Maryland
Mobile diesel first. Shop diesel at Randallstown only.
Need a tech on the shoulder? Start with our mobile diesel mechanic page — dealer-level diagnostics, DPF, derate clears, and roadside repair from all four locations. Bay work stays at 9325 Liberty Rd in Randallstown. Not auto repair.
What we fix on the shoulder
Dealer-level diagnostics
Dealer-level diagnostics on the shoulder. We read what the shop reads — then we fix it in place.
DPF regens & derate clears
Forced roadside DPF regenerations and derate resets so the truck can legally pull again.
Brakes, wheel ends, air
Brake work, wheel-end service, and air-system repairs that keep you out of a tow you do not need.
Jumps
Commercial jump service for tractors, reefers, and equipment. On site.
Air brakes, alternators, electrical
Air-brake repairs, alternators, and electrical work on the shoulder — charging, lights, starters, and the systems that keep the truck legal.
When roadside repair is the wrong call
Broken frames, unsafe air, seized driveline, fire, or a unit that cannot be made legal on the shoulder — we do not leave you waiting for a second company. The same dispatcher sends our heavy wreckers, Landoll, or RGN — or we bring it to the Randallstown shop. That is the triple-threat. That is why fleets put us on the board.
Mobile diesel vs. Randallstown shop
Broken down now? Start with the dedicated mobile diesel mechanic page for roadside help. Need bay work, aftertreatment that cannot finish roadside, or a scheduled diesel PM? That is the Randallstown shop only at 9325 Liberty Rd.
Derated or throwing a DPF fault? See DPF derate repair. Broken down on the road? See truck road service.
Diesel repair FAQ
Should I start with mobile or the shop?
Start with our mobile diesel mechanic when the unit is on the road or at a yard. Shop diesel is Randallstown only.
Is this auto repair?
No. We work commercial diesel trucks — not passenger-car auto repair.
Where is the shop?
9325 Liberty Rd, Randallstown, MD 21133. Call (240) 780-8691.