Established in 2021 Smokin J Diesel Service LLC is proudly serving Utah with high quality in shop & mobile repair services. From oil changes to major component replacements, our well-trained staff will keep your equipment on the move! We represent a 3rd generation of trucking expertise. Our technicians are dealer trained and factory certified technicians. We specialize in on-highway engines including but not limited to the following: Cummins, Caterpillar, and Detroit. Give us a call today!