​We are a family-owned business in NW Missouri. With 30+ years of industry experience, David Thomas and our team provide service you can trust. Experience the difference of a family-run operation!

 

As your partner for diesel engine diagnostic and repair services, our expertise spans from overhauls to fuel systems and engine controls for all major brands, including Cummins, Caterpillar, John Deere, and International. With the latest diagnostic tools for Cummins, Kubota & Honda Industrial engines, Rehlko (Kohler), Eaton-Fuller Ultra Shift and Endurant transmissions and other leading manufacturers, we are dedicated to keeping your diesel engine and drive train in top condition. 

 

Thomas Diesel is an Authorized Kubota, Honda, and Rehlko (Kohler) Engine dealer & offers service and parts for these brands.  We are also a dealer for high-quality aftermarket parts including Interstate-McBee & Maxiforce, as well as Hy-Capacity Tractor Parts & Banks power-enhancing products. 

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In addition, we offer Kiene service equipment for heavy duty diesel and truck repair. Kiene manufactures a wide selection of service equipment. This includes heavy duty engine stands and clutch caddies with a wide variety of attachments. Kiene equipment is manufactured in the United States and offers excellent value in this market. 

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Thomas Diesel is excited to announce that we are now a Bad Boy Tractor & implement dealer! This partnership allows us to provide our customers with high-quality, dependable tractors designed for performance. We look forward to enhancing your experience with the exceptional products and service that Bad Boy is known for. Visit us to explore our new offerings!

 

Contact us today to discover how we can support your diesel truck, industrial or agricultural equipment repair and parts needs, including field service and on-site cylinder block counterbore repair. Don't forget to ask about discounts on counterbore machining when purchasing engine parts from us!