Who We Are
At Modern Diesel Repair and Service, LLC, we specialize in keeping diesel engines running at peak performance. Serving the entire state of Oregon, our experienced team provides expert diagnostics, repairs, and maintenance for trucks, fleets, heavy-duty equipment, and agricultural vehicles.
Driven by quality, precision, and modern technology, we deliver solutions that you can rely on. From routine maintenance to complex engine repairs, we ensure every service is completed with care, transparency, and attention to detail.
Whether you’re a single driver or manage a commercial fleet, our goal is simple: keep your diesel vehicles safe, efficient, and dependable, while providing a customer experience built on trust and professionalism.
Experience modern diesel repair done right—because your vehicle deserves nothing less.
Our Promise
We’re committed to honest service, reliable repairs, and providing parts that keep your diesel vehicle running strong.
Our Services
Expert diesel repairs and quality parts to keep you moving.
Diesel Engine Diagnostics & Repair
Computer diagnostics and troubleshooting
Engine performance testing
Engine repair and replacement
Turbocharger repair/replacement
Fuel system repairs (injectors, pumps, lines)
Glow plug testing and replacement
Preventive Maintenance
Oil changes and filter replacements
Fuel filter changes
Air filter replacement
Coolant system service
Scheduled maintenance for fleets
Battery testing and replacement
Alternator and starter repair
Wiring and electrical troubleshooting
ECU/PCM testing and programming
Electrical & Electronic Systems
Brands We Service
Trucks:
Freightliner, Peterbilt, Kenworth, International, Isuzu, Hino, Ford, Dodge
Engines:
Cummins, Caterpillar, Detroit Diesel, Navistar
Transmissions:
Eaton, Allison, Detroit
Brakes:
Meritor, Haldex, Bendix
Refrigeration Units:
Thermo King, Carrier
Tires:
Falken, Toyo, Firestone, Westlake, and more
Other Brands:
Delo, Shell, Schaeffer’s, Fleetguard
Trailer, Reefer & Road Service Solutions
We provide reliable maintenance, repair, and roadside services for commercial trucks and trailers. Our experienced technicians service a wide range of equipment to keep your fleet safe, compliant, and on the road.