| Item | Part No. | Part Name | Qty | Serial No. |
| 20B-43-33111 | MASTER CYLINDER A. | 2001- | ||
| THE JIDOSHAKIKI PART NUMBER IS THAT JK IS REMOVED FROM KOMATSU PART NUMBER LISTED BELOW. | ||||
| 1 | JK204-10407 | PLATE ASS'Y | 2001- | |
| 2 | JK1304-0037 | SEAL (K1) | 2001- | |
| JK203-10304 | FITTING ASS'Y | 2001- | ||
| JK203-10201 | PISTON ASS'Y | 2001- | ||
| 3 | JK203-20100 | PISTON | 2001- | |
| 4 | JK1310-0009 | PACKING (K1) | 2001- | |
| 5 | JK203-20600 | FITTING | 2001- | |
| 6 | JK201-20700 | WASHER | 2001- | |
| 7 | JK1140-0002 | RING | 2001- | |
| 8 | JK1184-0013 | GASKET (K1) | 2001- | |
| 9 | JK203-12300 | DIAPHRAGM (K1) | 2001- | |
| 10 | JK1412-0001 | SPRING | 2001- | |
| 11 | JK202-22802 | VALVE,BODY | 2001- | |
| 12 | JK201-31100 | GASKET (K1) | 2001- | |
| 13 | JK0271-0416 | SCREW | 2001- | |
| 14 | JK9320-4043 | POPPET (K1) | 2001- | |
| 15 | JK1184-0007 | GASKET (K1) | 2001- | |
| 16 | JK1411-0004 | SPRING | 2001- | |
| 17 | JK202-11300 | PIPE | 2001- | |
| 18 | JK1142-0003 | RING | 2001- | |
| 19 | JK1310-0016 | PACKING | 2001- | |
| 20 | JK201-21300 | RETAINER | 2001- | |
| 21 | JK201-21600 | WASHER | 2001- | |
| 22 | JK1142-0002 | RING | 2001- | |
| 23 | JK204-21400 | WASHER | 2001- | |
| 24 | JK203-12100 | PISTON ASS'Y (K1) | 2001- | |
| 25 | JK1151-0003 | PIN | 2001- | |
| 26 | JK1184-0006 | GASKET (K1) | 2001- | |
| 27 | JK1184-0014 | GASKET (K1) | 2001- | |
| 28 | JK1110-0026 | NUT | 2001- | |
| 29 | JK203-25700 | CYLINDER | 2001- | |
| 30 | JK203-25505 | CAP | 2001- | |
| 31 | JK1180-0040 | GASKET (K1) | 2001- | |
| 32 | JK1192-0001 | PLUG | 2001- | |
| 33 | JK1271-0022 | PROTECTOR | 2001- | |
| 34 | JK203-12700 | ROD ASS'Y | 2001- | |
| 35 | JK203-29200 | WASHER | 2001- | |
| 36 | JK204-29301 | PLATE,PISTON | 2001- | |
| 37 | JK1313-0021 | PACKING (K1) | 2001- | |
| 38 | JK1184-0003 | GASKET (K1) | 2001- | |
| 39 | JK204-29601 | PLATE,PISTON | 2001- | |
| 40 | JK201-30000 | NUT | 2001- | |
| 41 | JK1414-0001 | SPRING | 2001- | |
| 42 | JK1174-0116 | O-RING (K1) | 2001- | |
| 43 | JK203-12512 | SHELL ASS'Y | 2001- | |
| 44 | JK203-30700 | BOLT | 2001- | |
| 45 | JK0141-1008 | NUT | 2001- | |
| 46 | JK0303-1025 | WASHER,SPRING | 2001- | |
| 47 | JK203-11403 | ELBOW | 2001- | |
| 48 | JK1221-0001 | HOSE (K1) | 2001- | |
| 49 | JK1224-0003 | CLAMP | 2001- | |
| 50 | JK1207-0027 | CONNECTOR | 2001- |