Mobile Air Brake Repair on the I-94 Corridor

Dragging brakes, a bleeding air leak, or a failed chamber on the shoulder? We bring air brake repair to your truck across the Alexandria, MN corridor — no tow, 24/7.

Call (320) 429-7948Request Service

Mobile Air Brake Repair that comes to your truck

Air brake problems are some of the most common — and most dangerous — reasons a commercial truck ends up on the shoulder. A failed brake chamber, a cracked air line, a slack adjuster out of stroke, or a slow leak that bleeds off your pressure overnight can all put you out of service in minutes. We bring a fully-equipped mobile shop to your truck and fix the air system where it sits.

We handle air brake work on semis and large trailers across the I-94 corridor within about 100 miles of Alexandria — diagnosing the leak or fault, replacing the failed component, and verifying the system holds pressure before you roll. Most air brake repairs are done roadside with no tow into a shop.

Mobile Air Brake Repair — MTTR Mobile, Alexandria MN I-94 corridor

What's included

  • Air leak diagnosis and repair (lines, fittings, valves, glad hands)
  • Brake chamber replacement (service and spring/parking chambers)
  • Slack adjuster replacement and brake adjustment to spec
  • S-cam, bushing, and foundation brake component service
  • Air dryer, governor, and compressor troubleshooting
  • DOT brake compliance checks and out-of-service corrections

Common problems we fix

Air leak / low air pressure
Failed brake chamber
Slack adjuster out of stroke
Won't build / hold air
DOT out-of-service brake
Dragging / grabbing brakes
MTTR Mobile technician performing mobile air brake repair

Why roadside air brake repair beats a tow

Air brake faults rarely need a shop — they need the right part and a tech who can find the leak. Towing a truck with a brake problem means a tow bill, a lost day, and a driver burning hours in a waiting room, when the fix is often a chamber or a fitting we carry on the truck.

Because air brakes are safety-critical and a DOT out-of-service item, getting them corrected on site by a DOT-certified tech gets you legal and rolling fast — and keeps a small leak from turning into a no-go inspection.

FAQ

Air Brake Repair questions

Yes — brake chamber replacement is one of the most common roadside repairs we do. We carry service and spring chambers and can swap a failed one and adjust the brake to spec where your truck is sitting.
Usually, yes. A truck that won't build or hold air is typically a leak, a governor, a compressor, or a dryer issue. We diagnose the cause on site and repair what we can carry parts for, then verify the system holds pressure before you go.
Air brake defects are common out-of-service items. We're DOT certified and correct brake faults on site so you can get legal and back on the road — and we can document the repair.
Yes — trailer air brakes, chambers, slack adjusters, and lines are all part of what we handle, on both the tractor and the trailer.
Around Alexandria, Osakis, and Sauk Centre it's usually 20–30 minutes; farther out on the corridor, call (320) 429-7948 and we'll give you a straight ETA. We run 24/7.

Related services

Diesel & Engine Repair
Trailer Repair
DOT Inspections
View all services

Where we serve

Fergus FallsAlexandriaOsakisSauk CentreMelroseAlbanyAvon
Available 24/7

Need air brake repair? Call now.

Tell us where you are and what it's doing — we'll give you a straight ETA and a mobile diesel tech.

Call (320) 429-7948