Curt’s Truck & Diesel Service, Truck View Service arrow right ABOUT CURT’S TRUCK & DIESEL SERVICE INC. Welcome to Curt’s Truck & Diesel Service, Inc. We are a full-service dealership providing you with sales, parts and service! We are conveniently located just off of I-35 in Owatonna, Minnesota. We have been serving Southern Minnesota and beyond since 1981! We look forward to serving you!