Tri-County stocks a large inventory of heavy-duty, all makes and models truck parts, from small pieces to major components, including rebuilt parts and exchange units. If a part isn’t stocked at a Tri-County location, we leverage our network and all major OEM and component manufacturers’ regional distribution centers to deliver hard-to-find parts to you quickly.

Online Parts Request

Parts Specials

Current promotions and discounts

Access to the Right Part – Right Away can make all the difference in keeping your trucks in operation and your business running smoothly.  Tri-County’s Parts Department is staffed by trained, seasoned parts professionals who stand ready to supply you with the right part in a fast, friendly and efficient manner for All Makes & Models of diesel trucks at very competitive prices.  Equipped with a multi-million dollar inventory at our branch locations, Tri-County parts professionals can quickly supply OEM-quality replacement parts for all medium duty, heavy duty and severe service trucks and school buses when and where you need them.