Zinc plated steel dust cap with removable rubber center plugs can be used on most recreational trailer wheel hubs. (1 Pair),External grease fitting allows for maximum flushing of the old grease while repacking the system with new grease. Rubber expansion access cap allows grease to expand and contract, also simplifies repacking. Double lip spring loaded grease seal and a completely sealed grease reservoir. Kit includes: Bearings, Seal, Superlube Dust Cap, Cotter Key with Lug Bolts. Completely assembled and pre-greased.
