Doing Diesel Repair Right Since 2001

We Deliver Expert Diesel Components and Repair Services That Keep Your Equipment Running Efficiently

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25+ Years of Experience

Restore Power. Maximize Efficiency. Keep Your Fleet Moving.

Since 2001, Diesel Plus has been the U.S. leader in precision diesel fuel injection systems and heavy-duty engine solutions. From specialized DPF cleaning to marine and industrial repairs, we provide the technical mastery that generic shops can't match.

The Diesel Story

Core Power Centers

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    Specialized Wheel Alignment

    We provide high-visibility solutions for mid- and heavy-duty vehicles. Save your tires and maximize MPG with precision rack alignment.
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    Onsite DPF Services

    Don't let a clogged filter sideline your business. Our in-house Diesel Particulate Filter cleaning restores power and emissions compliance.

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    Marine & Industrial Equipment

    Authorized Volvo Penta and Yanmar support for generators, farm tractors, and marine vessels.

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    Pickup Truck Specialists

    Elite diagnostics and repair for Sprinter vans and all major diesel pickup brands.
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    RV

    Diesel Plus LLC provides specialized RV services for power management systems, control modules, and onboard electronics. Our technicians perform software updates, module configuration, system calibration, and diagnostics to help ensure your RV's electrical and operational systems function efficiently, safely, and according to manufacturer specifications.

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    Vehicle Programming

    Our vehicle programming services support modern automotive and commercial vehicle systems that rely on electronic control modules. Using advanced programming tools, Diesel Plus LLC can update software, program replacement modules, perform calibrations, and resolve communication issues to restore proper vehicle performance, reliability, and functionality.

Our Repair Capabilities

The Diesel Hub

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Join us for our weekly broadcast on diesel performance and industry news.

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Volvo Certified Uptime Dealer

At Diesel Plus LLC, we provide professional Volvo certified repair services designed to keep your truck operating at peak performance. Our experienced technicians use advanced diagnostic equipment and industry-approved repair procedures to accurately identify and resolve mechanical, electrical, engine, transmission, and aftertreatment system issues. We are committed to delivering reliable repairs that help maximize vehicle uptime, improve efficiency, and extend the life of your Volvo truck. Whether you need routine maintenance, complex diagnostics, or major component repairs, Diesel Plus LLC offers dependable service focused on safety, performance, and long-term reliability.

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RV Service & Repair

Keep your RV road-ready with professional service and repair solutions from Diesel Plus LLC. Our experienced technicians provide diagnostics, maintenance, and repair services designed to keep your recreational vehicle operating safely and efficiently, whether you're preparing for your next adventure or addressing unexpected issues. From engine diagnostics and electrical troubleshooting to routine maintenance and system repairs, we're committed to helping you get back on the road with confidence.

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Our Diesel Experts Deliver

At our Ringgold facility, we handle heavy-duty diesel parts and full repairs for your components. See what we can do for your fleet today.