About Harmon Truck Service

Harmon Truck Service is a locally owned and operated truck repair and maintenance business in Sullivan, Missouri. We provide exceptional customer service and highly trained, quality technicians. Our goal: to provide each customer with outstanding value. We strive to consistently do the job right the first time. In addition, we complete jobs on time at the quoted price, fulfill orders correctly, and maintain clear communications with customers throughout each transaction.

A History of Service

Our Sullivan location has provided exceptional commercial vehicle service to Sullivan, the I-44 corridor, and surrounding areas for more than 40 years.

2015-present, Harmon Truck Service: In 2015, Jason and Susanne Harmon purchased the business from Clarke Power Services. We aim to stay consistent with the traditionally high standards of repair and service this location has provided throughout the years.

2006-2015, Clarke Power Services: Clarke purchased the business from Willette Truck Service in 2006. Clarke provided their customers with a single source repair operation offering one stop repair for anything on the truck. Their goal: constantly training Technicians to remain on top of the current technology and a commitment to get the job done right the first time.

1978-2006, Willette Truck Service: Willette Truck Service started their truck repair and maintenance business with one goal in mind: complete customer satisfaction. Willette Truck Service provided everything from road side repair to major engine/transmission rebuilds. They offered their customers great service with a dedicated, highly skilled team of technicians.