Parts on group :
| Pos. | Part No | Qty | Parts name | Comments |
|---|---|---|---|---|
| 010. | 12546-21110 | [1] | PISTON | STD <=550088 |
| 010. | 12556-21110 | [1] | PISTON | STD >=550089 |
| 010. | 12556-21113 | [1] | PISTON | STD >=550106 |
| 010. | 12546-21920 | [1] | PISTON | +0.25MM <=550105 |
| 010. | 12556-21923 | [1] | PISTON | +0.25MM >=550106 |
| 010. | 12546-21910 | [1] | PISTON | +0.50MM <=550105 |
| 010. | 12556-21913 | [1] | PISTON | +0.50MM >=550106 |
| 020. | 12545-21050 | [1] | ASSY PISTON RING | STD <=550088 |
| 020. | 12556-21050 | [1] | ASSY RING PISTON | STD >=550089 |
| 020. | 12556-21052 | [1] | ASSY RING PISTON | STD >=550106 |
| 020. | 12545-21100 | [1] | ASSY PISTON RING | +0.25MM <=550105 |
| 020. | 12556-21102 | [1] | ASSY RING PISTON | +0.25MM >=550106 |
| 020. | 12545-21090 | [1] | ASSY PISTON RING | +0.50MM <=550105 |
| 020. | 12556-21092 | [1] | ASSY RING PISTON | +0.50MM >=550106 |
| 030. | 12627-21310 | [1] | PIN PISTON | |
| 040. | 13961-21330 | [2] | CIR CLIP | |
| 050. | 12627-22010 | [1] | ASSY CONNECTING ROD | STD |
| 050. | 12627-22050 | [1] | ASSY CONNECTING ROD | -0.25MM |
| 050. | 12627-22060 | [1] | ASSY CONNECTING ROD | -0.50MM |
| 060. | 12627-22140 | [2] | BOLT ROD | |
| 070. | 12549-23010 | [1] | ASSY CRANKSHAFT | <=550145 |
| 070. | 12549-23015 | [1] | ASSY CRANKSHAFT | >=550146 |
| 080. | 05811-00416 | [1] | KEY WOODRUFF | |
| 090. | 12965-24110 | [1] | GEAR CRANKSHAFT | |
| 100. | 12621-16300 | [1] | BEARING BALL | |
| 105. | 08103-06306 | [1] | BEARING BALL | |
| 110. | E3131-23550 | [1] | SEAL,OIL | |
| 120. | 13961-16640 | [1] | SEAL OIL | |
| 130. | 13641-23680 | [1] | SHIM | 0.20MM |
| 130. | 13641-16550 | [1] | SHIM 25 | 0.25MM |
| 130. | 13641-23620 | [1] | SHIM 30 | 0.30MM |
| 130. | 13641-16560 | [1] | SHIM | 0.35MM |
| 130. | 13641-23630 | [1] | SHIM | 0.40MM |
| 130. | 12621-16600 | [1] | SHIM | 0.45MM |
| 130. | 13641-23650 | [1] | SHIM 50 | 0.50MM |
| 130. | 12621-23680 | [1] | SHIM | 0.55MM |
| 130. | 12621-23690 | [1] | SHIM | 0.60MM |
| 140. | 05911-00732 | [1] | KEY IMPELLER | |
| 150. | 13961-84210 | [1] | BOLT | |
| 160. | 01123-50820 | [1] | BOLT,SEMS |