Back up ring 105-4105 ,Ring back 1054105 fits caterpillar
2023-02-24
1504105 RING-BACKUP Caterpillar parts
120H, 135H, 3126, 3126B, 3126E, 322C, 322C FM, 325C, 325C FM, 561N, 570B, 580B, 938G II, 950G II, 953C, 962G II, 963C, C7, D5N, D6N, IT38G II, IT62G II, M325C MH, SPP10