| Item | Part No. | Part Name | Qty | Serial No. |
| 20D-68-41760 | AIR MASTER ASS'Y | | 2301- |
| 20G-68-11270 | AIR MASTER ASS'Y | | 1601-2300 |
| | THE JIDOSHAKIKI PART NUMBER IS THAT JK IS REMOVED FROM KOMATSU PART NUMBER LISTED BELOW. | | |
| 1 | JK234-10159 | END PLATE ASS'Y | | 2301- |
| 1 | JK234-10155 | END PLATE ASS'Y | | 1601-2300 |
| 2 | JK234-21104 | RETAINER | | 1601- |
| 3 | JK234-21205 | WASHER | | 1601- |
| 4 | JK234-21401 | WASHER | | 1601- |
| 5 | JK1192-0001 | PLUG | | 1601- |
| 6 | JK1271-0022 | PROTECTOR | | 1601- |
| 7 | JK1412-0156 | SPRING | | 1601- |
| 8 | JK1345-0017 | BRACKET | | 1601- |
| 9 | JK231-24805 | CAP | | 1601- |
| 10 | JK1110-0435 | NUT | | 1601- |
| 11 | JK234-25211 | CYLINDER | | 1601- |
| 12 | JK234-26702 | PLATE | | 1601- |
| 13 | JK1130-0646 | WASHER | | 1601- |
| 14 | JK1110-0006 | NUT | | 1601- |
| 15 | JK234-28510 | ROD | | 1601- |
| 16 | JK234-29106 | RETAINER | | 1601- |
| 17 | JK234-12094 | SHELL ASS'Y | | 1601- |
| 18 | JK234-37000 | PLATE | | 1601- |
| 19 | JK0031-1060 | BOLT | | 1601- |
| 20 | JK0021-1055 | BOLT | | 1601- |
| 21 | JK1414-0016 | SPRING | | 1601- |
| 22 | JK0141-1008 | NUT | | 1601- |
| 23 | JK0303-1025 | WASHER | | 1601- |
| 24 | JK1205-0037 | CONNECTOR | | 1601- |
| 25 | JK1206-0073 | BOLT | | 1601- |
| 26 | JK234-12100 | COVER | | 1601- |
| 27 | JK1264-0042 | COLLAR | | 1601- |
| 28 | JK234-13507 | ROD | | 1601- |
| 29 | JK1420-0030 | SPRING | | 1601- |
| 30 | JK1113-0183 | NUT | | 1601- |
| 31 | JK1132-0166 | WASHER | | 1601- |
| 32 | JK234-29801 | COVER | | 1601- |
| 33 | JK234-18910 | SWITCH | | 1601- |
| 34 | JK1392-0182 | PLATE,CAUTION | | 1601- |
| 20D-68-12110 | REPAIR KIT | | 1601- |
| 35 | \6\ | SEAL,OIL (K4) | | 1601- |
| 36 | \6\ | SEAL,OIL (K4) | | 1601- |
| 37 | \6\ | PACKING (K4) | | 1601- |
| 38 | \6\ | RING,SNAP (K4) | | 1601- |
| 39 | \6\ | O-RING (K4) | | 1601- |
| 40 | \6\ | VALVE ASS'Y,(NOT SHOWN) (K4) | | 1601- |
| 41 | \6\ | RING,(NOT SHOWN) (K4) | | 1601- |
| 42 | \6\ | GASKET (K4) | | 1601- |
| 43 | \6\ | PISTON ASS'Y (K4) | | 1601- |
| 44 | \6\ | FELT,WICK (NOT SHOWN) (K4) | | 1601- |
| 45 | \6\ | PACKING (K4) | | 1601- |
| 46 | \6\ | GASKET (K4) | | 1601- |
| 47 | \6\ | O-RING (K4) | | 1601- |
| 48 | \6\ | GASKET (K4) | | 1601- |
| 49 | \6\ | GASKET (K4) | | 1601- |
| 50 | \6\ | SHIM (K4) | | 1601- |
