Lippert Components 693795 10PK DUST CAP 2.5IN BORE.

Shield bearings, grease, and other inner hub components from dust and contaminants. Replacement dust caps for standard axle hubs are identified by axle weight capacity, making it easy to find the right fit. Designed for 5, 200-6,000 lbs. Capacity Axles. 2.5" Bore. DC 250. Bearings and bearing grease should be visually inspected every 12,000 miles or every 12 months, whichever comes first.