Trailer Parts Superstore sells zinc plated trailer grease/dust caps designed to meet a variety of applications. Caps feature a "press-in" design for quick installation. Thick steel construction for lasting durability. Grease caps with removable rubber center plugs can be used with hubs or spindles that have a built in grease zerk fitting. Clear PVC Oil Caps come with a rubber O-ring and removable center fill plug.
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SuperLube 1.980" I.D. Hub/Drum Dust Cap #81168 Stock# 5256079 Zinc plated steel dust cap with removable rubber center plugs can be used on most recreational trailer wheel hubs. (1 Pair)
Turbo Lube Hub Replacement Cap w/Center Plug Stock# 5256012 Replacement cap with o-ring and center rubber plug to fit the Tie Down Engineering 'Turbo Lube' oil filled trailer wheel hub.