Southwest Diesel Service Inc. of Saint George, UT is a factory authorized parts & service dealer for Cummins, Caterpillar and Detroit Diesel. Southwest Diesel also specializes in Freightliner, Sterling, Westernstar, Dodge Cummins, Ford Powerstroke, and Chevy Duramax repairs. To ensure customer satisfaction throughout the state of Utah and around the country we maintain a complete up to date parts inventory. Serving the area for more than 30 years, Southwest Diesel has the latest technology for diesel repairs such as tooling, computer systems, and complete diesel tech training. From repairing all Diesel Engines to Transmissions we specialize in all makes, models, and sizes: which include Tractor, Trailers, RV's, and Pickups POWER Plus: Performance modification to all diesel engines and transmissions Southwest Diesel is a authorized distributor for Edge products, BD, KN Air Cleaner, Fast Coolers, T-Spro Gauges, and much, much more. Our services include: Engines Transmissions Clutches Rear Ends Air Conditioning Alternators Starters 24-hour repair & towing We accept all major credit cards. Call today for more information.