At RG Diesel, LLC, we are exclusively passionate about providing top-quality repair and maintenance services for heavy-duty diesel trucks. Since opening our doors in 2019, we have committed ourselves to delivering honest, reliable, and expert service to the East Tennessee region. We don’t try to be everything to everyone—we are 100% dedicated to diesel.

Our team of certified technicians brings years of experience and unmatched expertise specifically to the Ford Powerstroke, Dodge Cummins, and Chevrolet Duramax platforms. We have the specialized skills, tools, and technology to handle every aspect of your diesel needs. From routine Maintenance Inspections and specialized brake service to complex engine diagnostics, fuel system repairs, and high-performance upgrades, we’re here to keep your diesel truck running at its absolute best.

What sets us apart is our dedication to specialization, transparency, and customer satisfaction. We provide upfront pricing, clear communication, and high-quality diesel repairs backed by a warranty. We know how crucial your time and your work truck are, which is why we strive to complete most services quickly and efficiently, ensuring you’re back on the road with minimal downtime.

At RG Diesel, LLC, we believe in building lasting relationships with our customers. Whether you need expert help with your personal truck or a critical fleet asset, you can count on us for dependable, expert service every time.

Call us today at 423-823-9987 to schedule your appointment or stop by our shop at 3460 W Andrew Johnson Hwy, Greeneville, TN 37743. Let us show you why RG Diesel LLC is the right choice for all your diesel repair and maintenance needs!