| Item | Part No. | Part Name | Qty | Serial No. |
| 1 | 23A-70-15110 | .CASE | 4001- | |
| 2 | 23A-70-15150 | .BUSHING | 4001- | |
| 3 | 07012-00062 | .SEAL,OIL (KIT) | 4001- | |
| 4 | 07040-11812 | .PLUG | 4001- | |
| 5 | 07002-11823 | .O-RING (KIT) | 4001- | |
| 6 | 23A-70-15120 | .COVER | 4001- | |
| 7 | 23A-70-15160 | .BUSHING | 4001- | |
| 8 | 07040-13016 | .PLUG | 4001- | |
| 9 | 07002-13034 | .O-RING (KIT) | 4001- | |
| 10 | 07000-15220 | .O-RING | 4001- | |
| 11 | 01010-51030 | .BOLT | 4001- | |
| 12 | 01643-31032 | .WASHER | 4001- | |
| 13 | 23A-70-15210 | .HOUSING | 4001- | |
| 14 | 07000-12130 | .O-RING (KIT) | 4001- | |
| 15 | 238-70-16210 | ..SHIM¤ 0.1MM | 4001-@ | |
| 238-70-16220 | ..SHIM¤ 0.2MM | 4001-@ | ||
| 238-70-16240 | ..SHIM¤ 1.0MM | 4001-@ | ||
| 16 | 01140-81235 | .STUD | 4003-@ | |
| 17 | 01582-11210 | .NUT | 4001-@ | |
| 18 | 01643-31232 | .WASHER | 4001-@ | |
| 19 | 23B-70-16250 | .O-RING (KIT) | 4003-@ | |
| 20 | 01252-41035 | .BOLT | 4001-@ | |
| 21 | 01643-31032 | .WASHER | 4001-@ | |
| 22 | 23A-70-15180 | .PLATE | 4001-@ | |
| 23 | 04020-01024 | .PIN,DOWEL | 4001-@ | |
| 24 | 232-71-13150 | .PIN | 4001-@ | |
| 25 | 01010-52455 | .BOLT | 4001-@ | |
| 26 | 01643-32460 | .WASHER | 4001-@ | |
| B | »GSERVICEKIT | SERVICE KIT | 4001-@ | |
| KIT | 23B-70-05021 | SERVICE KIT,CIRCLE REVERSE GEAR | 4003-@ | |
| 23B-70-05020 | SERVICE KIT,CIRCLE REVERSE GEAR | 4001-4002 |