Aurora,CO’sTrustedDieselEmissions&TruckRepairExperts

Founded in 2010, JJ Diesel Dogsis a family-owned and operated diesel repair shop in Aurora, CO, dedicated to delivering expert service with a commitment to honesty and community. Our goal is not just to fix trucks but to build long-term relationships with our customers by providing transparent and high-quality repairs. We know that trust is key in the automotive industry, which is why we take the time to educate our customers about their vehicle's needs—so they always feel confident in the work we perform.

Our shop specializes in domestic diesel truck maintenance and repairs, working on brands like Ford, Ram, Chevrolet, GMC, Sprinters (Mercedes, Dodge, Freightliner), Workhorse (food trucks), and Isuzu box trucks. Whether it's routine maintenance, diesel emissions testing, suspension and steering work, or complex engine and transmission replacements using JASPER Engines, we have the expertise to get the job done right. We also offer electrical diagnostics and repairs, along with FASS fuel system installations to optimize fuel efficiency and performance.

At JJ Diesel Dogs, we take pride in standing behind our work. That's why we offer a 1-year / 12,000-mile warranty on all repairs, with extended coverage of 3 years / 100,000 miles on engines and transmissions. To make our services more accessible, we provide flexible financing options through Koalifi, allowing customers to get the repairs they need without financial strain. As a Certified Auto Repair shop, we meet high industry standards for service quality, ensuring our customers receive reliable and professional repairs.

We are more than just a repair shop—we are part of the Aurora, CO community. Our team is dedicated to providing exceptional customer service, ensuring every client feels comfortable and informed about their vehicle's repairs. Whether you're a fleet owner, a business relying on a work truck, or a diesel truck enthusiast, we're here to keep your vehicle running at its best. Visit us today and experience the JJ Diesel Dogs difference!