Medium-Duty Diesel Repair
Power Stroke and Cummins fuel systems, air brakes, emissions, and advanced diagnostics for medium-duty commercial trucks — keeping your working vehicles working.
Medium-duty commercial trucks are our lane
Modern Diesel provides professional medium-duty truck repair across Austin, Bastrop, Kyle, and San Marcos. We specialize in Power Stroke and Cummins fuel systems, advanced diagnostics, brakes and air-brake systems, and emissions repair for medium- and heavy-duty trucks — including semis.
What we service
- Pickups and work vans
- Medium-duty box trucks and commercial vehicles
- Tractor-trailers and semis
- Mixed diesel fleets of every kind
No matter what your business hauls or serves, you can count on dependable repairs, quality workmanship, and efficient turnarounds that keep your fleet running strong — or hand the whole schedule to our fleet maintenance program.
Warranty coverage is set with your service advisor at the time of service.
Makes and engines we service
Medium-duty work around Austin is mostly Cummins and Power Stroke power in Freightliner M2 and International MV and DuraStar chassis — box trucks, service bodies, and delivery units that have to be back on route tomorrow.
Why Modern Diesel
A Christian, veteran-owned shop serving the Greater Austin Area (Travis, Bastrop, Williamson, Hays) since 2015. Experienced technicians, current diagnostics, and honest service. Call to get your truck scheduled.
Ready when you are.
Drop by the shop at 2900 N FM 973, Austin, TX 78725 or call and we’ll get you scheduled.