Engineered for all-out performance, NAPA Fleet Chassis tie rod assemblies are the go-to choice or high-usage commercial vehicles, fleets and working trucks. Designed and built for maximum durability, no matter how tough you are on your vehicle. They feature self-lubricating sintered bearings, ultra-protective boot designs, thicker hex forging, larger diameter ball pins, Optitek™ premium grease, and Defend-X™ corrosion coating. No matter how tough you are on your vehicle, NAPA Fleet Chassis tie rod end assemblies are built to perform.