| Item | Part No. | Part Name | Qty | Serial No. |
| 21J-60-11211 | BRAKE BOOSTER ASS'Y | 4701- | ||
| THE MIYAKO JIDOHSYA PART NUMBER IS THAT MY IS REMOVED FROM KOMATSU PART NUMBER LISTED BELOW. | ||||
| MY012-8364-00 | MASTER CYLINDER A. | 4701- | ||
| 1 | \6\ | CYLINDER | 4701- | |
| 2 | \6\ | PISTON ASS'Y (KIT) | 4701- | |
| 3 | \6\ | VALVE ASS'Y (KIT) | 4701- | |
| 4 | \6\ | RING,SNAP (KIT) | 4701- | |
| 5 | MY365-0037-00 | VALVE,BREATHER | 4701- | |
| 6 | MY311-0296-00 | CAP,BREATHER | 4701- | |
| 7 | MY349-8016-00 | JOINT | 4701- | |
| 8 | MY387-0048-00 | CLAMP | 4701- | |
| 9 | MY781-8122-00 | FLANGE | 4701- | |
| 10 | 07030-00252 | BREATHER | 4701- | |
| 11 | MY781-7076-00 | AIR FILTER ASS'Y | 4701- | |
| 12 | MY781-8123-00 | FLANGE | 4701- | |
| 13 | MY593-0631-30 | O-RING | 4701- | |
| 14 | MY781-8126-00 | CYLINDER | 4701- | |
| 15 | MY781-8124-00 | ROD | 4701- | |
| 16 | MY781-8125-00 | PISTON | 4701- | |
| 17 | MY129-8027-30 | PACKING | 4701- | |
| 18 | MY691-8024-00 | BEARING | 4701- | |
| 19 | MY591-0819-30 | O-RING | 4701- | |
| 20 | MY781-8162-00 | COLLAR | 4701- | |
| 21 | MY151-8122-00 | SPRING | 4701- | |
| 22 | MY151-8123-00 | SPRING | 4701- | |
| 23 | MY781-8128-00 | BRACKET | 4701- | |
| 24 | MY781-8129-00 | BRACKET | 4701- | |
| 25 | MY522-1008-00 | NUT | 4701- | |
| 26 | MY781-8127-00 | BOLT | 4701- | |
| 27 | MY502-1035-10 | BOLT | 4701- | |
| 28 | MY573-1025-20 | WASHER,SPRING | 4701- | |
| 29 | MY571-1020-00 | WASHER | 4701- | |
| SERVICE KIT | ||||
| KIT | MY212-8128-00 | SERVICE KIT,BRAKE BOOSTER | 4701- |