For: 2000 -3500 lb trailer wheel hub and both types of axles EZ Lube and standard
Compatible: most brake idler trailer axles for most 4 lug & 5 lug axles with 1.98" diameter cap and various trailers, including boat trailer grease caps, campers, and RVs
Inclube: 2pcs 1.98 inchs trailer axle covers and 2pcs extra rubber plugs, the extra 2 rubber plugs can be used as spare parts in emergency,easy to install and maintain
Dimension: OD: 1.98 inch/ 50.4 mm
Better Quality: dust-proof cap is made of high-quality steel and rubber, with a galvanized surface that is durable, ensures rust and long-lasting protection, and facilitates the use of grease
Perfect protection: 1.98" Trailer Axle Dust Cap trailer hub dust caps effectively prevent dirt, water and other contaminants from entering the bearings, preserve grease, prevent axle corrosion, and extend the life of the trailer axle and bearings