Load Boss LB9394 Air Spring Replaces Hendrickson S103522 & Fruehauf UCE-9393-2 & Firestone W01-358-9394. Replaces: Fruehauf UCD-9393-2, If bolt is removed, this air bag can replace UCE-9393-1 and Hendrickson Trailer S103522. Cross References: E1R12142, 1R12142, 1R12261, 1R12279, 1R12281, 566243093, 9130, 9241, 8321, 8358, 8383, UCE-9393-2, 1R12-279, 64281, 9 10-19 P 383, 910-19P383, 91019P383, W01-358-9394, W013589394, 352-9130