Heavy-Duty Diesel Repair Done Right.
Engine swaps, transmissions, brakes, diagnostics, and 24/7 towing. Gateway Diesel Repair keeps your rig — and your business — moving.
Full-Service Diesel Shop
From routine maintenance to full engine rebuilds, we handle every job in-house with the tools and experience heavy-duty trucks demand.
Engine & Transmission Swaps
Full diesel engine rebuilds and transmission replacement for heavy-duty rigs and pickups.
Brakes & Suspension
Pads, rotors, drums, airbags, shocks, and full suspension work for trucks of every size.
Computerized Diagnostics
Cummins, Duramax, Powerstroke — we read the codes and fix the root cause.
Electrical System Repair
Alternators, starters, wiring, sensors, and full electrical diagnostics.
Towing & Recovery
Flatbed towing service across Tulsa. Broken down? We come to you.
A/C Service
Cab A/C repair, heater core, blower motor, evac & recharge, and cabin filter replacement.
DEF Service
DEF system service, SCR & emissions repairs, injector cleaning, and compliance testing.
Diagnostic Check.
Our computerized diagnostic checks cover every major diesel platform — Cummins, Duramax, and Powerstroke. We scan engine, transmission, emissions, and electrical systems to pinpoint issues before they become breakdowns.
- Full Engine Scan
- Transmission Analysis
- Emissions & DEF Testing
- Electrical & Sensor Check
- Live Data Monitoring
- Code Clear & Reset
Tulsa's Go-To Diesel Team.
Gateway Diesel Repair & General Vehicle Mechanic is a family-run shop on East 21st in Tulsa. We service everything from Powerstrokes and Cummins to Duramax pickups and medium-duty commercial trucks — plus general repair on gas vehicles.
Broken down on the road? Our flatbed tow trucks run day and night. One call, one shop, done right.
- Engine & Transmission Swap
- Brakes & Suspension
- A/C Service
- DEF Service
- Computerized Diagnostics
- Electrical System Repair
- Tune-Ups & Tires
Real Trucks. Real Work.
Ready When You Are.
Call for immediate service and towing, or send us a message and we'll get right back to you.
Request Service
We reply within business hours. For emergencies, please call.