Tri-County Diesel Service provides complete truck repair and maintenance services for all major big truck brands, including Ford, Kenworth, International, Peterbilt, Freightliner, Mack, GMC, Western Star, Volvo, Detroit, Cummins, and Cat. Our goal is to take care of all of our customers’ needs, from emergency repairs to maintaining a long-term preventive maintenance schedule. Here’s a list of our services, but if you don’t see what you need give us a call because we do it all!