127 Byassee Dr, Hazelwood, MO 63042 Day 314-757-1554  ·  After hours 314-537-0344

Hazelwood, MO · Serving the St. Louis Metro

Diesel Truck & Trailer Repair In the shop or on the shoulder.

Parts, sales & service for all makes and models — at our Hazelwood shop or wherever your truck gave out.

Mid States box truck on a 24-hour road call, hood up on a semi 24-hr road call — St. Louis Metro
All Makes & Models
CumminsCATDetroitFreightlinerInternationalMackVolvoPeterbiltKenworthWestern Star

Parts ~ Sales ~ Service

One shop for everything that rolls.

Diesel Engine Repair

Diagnostics · Aftertreatment · Electrical

Overhauls, cooling systems and emissions work on every major engine platform.

Drivetrain & Differentials

Clutch · Transmission · Rear Ends

Clutches, transmissions, rear ends and driveshafts — rebuilt and replaced with quality parts.

Tires, Brakes & PM Service

DOT Inspections · PM Programs

Tire replacement, full brake jobs and the preventive maintenance that keeps you legal and loaded.

Engine overhaul in the Mid States shop

Trailer & Reefer Repair

Doors · Air · Liftgates · Reefers

Doors, floors, lights, air systems, landing gear and liftgates — dry vans, flatbeds and reefers.

Fleet Accounts

Priority Service · PM Programs

Scheduled maintenance and priority turnaround that keep whole fleets earning.

Ask about fleet pricing →

Parts & Sales

Counter · Sourcing

The parts counter that gets you moving — and straight talk on buying, selling and outfitting equipment.

Broke down right now?

We answer at 2 a.m.

24-hour emergency road service — mobile units across the St. Louis metro with parts on board.

Day — Shop & Road ServiceCall this number now 314-757-1554 After Hours — EmergencyCall this number now 314-537-0344

Need a tow instead? United Towing & Recovery — 636-730-8925

United Towing wrecker towing a red semi inside an underground limestone warehouse
Underground warehouse recovery — St. Louis
Rotator crane recovering an overturned reefer trailer
Rotator recovery — overturned reefer
Sister company — United Towing & Recovery

When it can't be fixed where it sits.

Our towing arm brings it in: heavy wreckers and rotator recovery for the big jobs.

  • Heavy & medium duty towing, 24/7
  • Accident recovery & load shifts
  • Winch-outs & off-road recovery
  • Local & long-distance transport
Towing: 636-730-8925
Mid States 24-hour emergency box truck on a dawn road call
Dawn road call — 24-hr unit
Wrecker lifting a blue Kenworth
Heavy lift — Kenworth
Night roadside service call
Night road call — St. Louis
Ring gear of a rear differential
Ring & pinion — rear differential
Tire and PM service on a motorcoach
Motorcoach — tires & PM
Towing a delivery fleet trailer
Roadside tow — delivery fleet
On-site service call at a retail store
On-site service — retail fleet
The Mid States crew lined up with their service fleet under the shop banner

The banner on our shop wall

“If we don't take care of our customers, someone else will.”

— Hanging over the shop floor, Hazelwood MO

That's how we run the place. A full crew of techs, a fleet of mobile units, and a parts counter that answers the phone — serving owner-operators and fleets across the St. Louis metro.

Call now · Day 314-757-1554 Call now · After hrs 314-537-0344