| Item | Part No. | Part Name | Qty | Serial No. |
| 12Y-30-00011 | IDLER ASSEMBLY | B13500- | ||
| 1 | 01010-81645 | BOLT | B13500- | |
| 2 | 01643-31645 | WASHER | B13500- | |
| 3 | 01011-81600 | BOLT | B13500- | |
| 4 | 01643-31645 | WASHER | B13500- | |
| 5 | 01016-51680 | BOLT | B13500- | |
| 6 | 01643-31645 | WASHER | B13500- | |
| 7 | 01582-11613 | NUT | B13500- | |
| 8 | 01643-31645 | WASHER | B13500- | |
| 9 | 07000-13048 | O-RING | B13500- | |
| 10 | 07052-31217 | PLUG | B13500- | |
| 11 | 124-30-51181 | SHAFT | B13500- | |
| 12Y-30-00100 | FLOATING SEAL ASSEMBLY | B13500- | ||
| 12 | 12Y-30-11510 | SEAL | B13500- | |
| 13 | 154-32-61170 | O-RING | B13500- | |
| 14 | 12Y-30-11111 | IDLER | B13500- | |
| 15 | 12Y-30-11130 | BUSHING | B13500- | |
| 16 | 12Y-30-11312 | SUPPORT R.H. | B13500- | |
| 17 | 12Y-30-11322 | SUPPORT L.H. | B13500- | |
| 18 | 12Y-30-11331 | GUIDE | B13500- | |
| 19 | 12Y-30-11350 | PLATE (WELDED) | B13500- | |
| 20 | 12Y-30-11380 | WEAR PLATE | B13500- | |
| 21 | 12Y-30-11370 | SHIM | B13500- | |
| 22 | 12Y-30-11410 | PLATE | B13500- | |
| 23 | 12Y-30-11420 | SHIM | B13500- | |
| 24 | 12Y-30-11441 | GUIDE | B13500- | |
| 25 | 12Y-30-11360 | PLATE (WELDED) | B13500- | |
| 26 | 130-30-13170 | BOLT | B13500- | |
| 27 | 155-30-13230 | SPRING | B13500- | |
| 28 | 195-30-17960 | PLATE | B13500- |