7X7700 Locking Fuel Cap For CAT Dozer D6R D5C E320C Caterpillar Excavator aftermarket replacement parts, Replaces part # 7X7700 7X-7700 164-4858 1644858 349-7059 3497059 123-6305 1236305 Caterpillar CAT 312D 320B 320C 320D 321C 322BL 322C ASPHALT PAVER AP-1000B; AP-655C; AP-800D; AP-900B; BG-2255C; BG-230D; BG-240C; BG-260C; BACKHOE LOADER 515;525/B;525C; 535B; 535C; 545/C,931B, 933C, 935, 939C, 943, 953/B/C,D3C,D4C,D5C Loaders: 931B, 933C, 935, 939C, 943, 953, 953B, 953C, 963, 963B Dozers: D3C, D4C, D5C, D6D, D7G, D8K, D9, D10 Wheel Loaders: 910, 920, 930, 950, 966. Excavator: E320B,320C,320D Articulated Dump Truck:725,730,735,740,D250E II,D300E II,D350E II,D400E II,730,740 WHEEL LOADER 910G, 938F, 938G, 950G, 966G, 972G