Spindle cap / hub dust cover fits on top of the cotter pin on the front axle of your EZGO golf cart. The part is vital to keeping dust and debris from the bearings. This hub can be used on various EZGO Gas and Electric Golf Carts. Alternate and OEM Reference Numbers: SUS04643, 12091-G2, AXL-0104, 12091G1, 12091-G1, 12091G2, 12091-G2, 2-220, 12091-G1IC, 555972JB, 411324, N4643