Powerhouse Diesel is a full-service diesel repair and performance shop in Knoxville, TN. Whether you're chasing more power, fixing a problem, or building something from the ground up, our team works on Powerstroke, Cummins, and Duramax trucks every day — and we treat your truck like it's one of our own.
What We Do
- Diagnostics & check-engine troubleshooting
- Routine maintenance, fluid & filter service
- Performance upgrades & custom tuning
- Fuel system, turbo & cooling work
- Transmission service & upgrades
- Full in-house engine builds
If it's diesel, we can help. See some of our work on our Built In-House Engines page, or meet the team turning the wrenches.
Why Powerhouse Diesel
Eight years serving East Tennessee diesel owners, a shop full of trucks we've built and stand behind, and a 30,000+ part catalog so what you need is usually in-house. We also offer financing, so the build you want doesn't have to wait.
Visit Us
Address: 7664 Maynardville Pike, Knoxville, TN 37938
Phone: (865) 640-2097
Email: sales@powerhouse-diesel.com
Hours: Monday–Friday, 8:30 AM – 5:00 PM (closed 12:00–1:00 PM for lunch)
Saturday & Sunday: Closed
