Award Winning
Service & Parts
Our dedication to customer service doesn't end after the sale.
Drivers searching for dependable diesel repair in Warrenton, MO will feel right at home the moment they walk in. Shelton Automotive Group & Diesel Repair was built on honesty, skill, and a deep passion for diesel trucks, and you’ll notice that commitment from the very first conversation. Whether you’re here for routine maintenance, diagnostics, or custom upgrades, our team is ready to deliver reliable service and real expertise every step of the way. We take the time to understand your truck’s needs, explain our recommendations clearly, and make sure every repair is done with the care and precision your diesel deserves.
Our shop handles a full range of diesel services and repairs, giving drivers one dependable place for everything their truck needs. From routine maintenance and advanced diagnostics to engine work, suspension upgrades, lift kits, and aftermarket performance tuning, our team is equipped to tackle it all with precision. We work on Cummins, Power Stroke, and Duramax engines every day, making sure each truck leaves running stronger, smoother, and ready for whatever the road brings.
Every repair we perform comes backed by a solid 3-year/36,000-mile warranty, giving you confidence long after you leave the shop. We stand behind our workmanship and the parts we use, so you can drive knowing your diesel is protected. It’s our way of showing that we don’t just aim to fix your truck—we aim to earn your trust with dependable results that last.
As the leading diesel repair shop in Warrenton, we’ve earned our reputation by combining skilled workmanship with genuine customer care. Diesel owners trust us because we deliver the kind of specialized service that’s hard to find anywhere else—from detailed diagnostics to performance upgrades tailored to real-world use. Our team works on diesel trucks every single day, giving us the hands-on experience and technical knowledge that set us apart in the region. When drivers want accuracy, honesty, and results they can feel on the road, they know Shelton Automotive Group & Diesel Repair is the place that gets it done right.
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