Active Member
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[China]
Address: Building E NO.10 ,ZhuCun International Machinery City,ZhongShan Road,TianHe District,GuangZhou.
Contact name:Sum Huang
Guangzhou Sonka Engineering Machinery Co., Ltd. |
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the weight of this hydraulic main pump HPK055 piston is 0.14KG/PC.
and it's sold in set.
9 pieces a set.
it needs 2 sets for one hydraulic pump HPK055.
but people need one set oftenly, for the rear side or front side.
maybe they are not all broken for the 18 pieces,
they can choose 9 pieces good one and only need to order another 9 pieces new.
and when it used to Hitachi excavator model ZX120-6,
the part numbder for the piston is 8071391.
by the way, sometimes, there might be different types pump parts for same pump model.
In such case, maybe you will be required to help to provide the piston size to double clarify.
the total length and the diamater.
HPK055 Main Pump includes below parts:
| Model | DESCRIPTION | QUANTITY |
| HPK 055 (ZX120-6 Hydraulic Main Pump) | CYLINDER BLOCK & VALVE PLATE FRONT | 1 |
| CYLINDER BLOCK & VALVE PLATE REAR | 1 | |
| DISC SPRING SET | 4 | |
| SET PLATE & BALL GUIDE | 1 | |
| PISTON SHOE SET | 9 | |
| SHOE PLATE | 1 | |
| SWASH PLATE FRONT & CRADLE | 1 | |
| SWASH PLATE REAR & CRADLE | 1 | |
| SERVO PISTON | 1 | |
| SPRING COMPRES | 1 |
Part No | Parts name |
1026892 | CASING;FRONT |
2038178 | SHAFT;DRIVE |
4355286 | RACE;INNER |
4229543 | RING;RETAINING |
4280841 | BRG.;ROL. |
991342 | RING;RETAINING |
4343074 | O-RING |
4198956 | PIN |
2042069 | PLATE |
M340613 | BOLT;SOCKET |
1025666 | PLATE;SWASH |
4382272 | PLATE |
4407464 | PLATE |
9134109 | PLUG |
4506408 | O-RING |
2042059 | ROTOR |
4289874 | SPRING;DISC |
3065991 | BUSHING |
3065989 | RETAINER |
8071391 | PISTON |
4410166 | O-RING |
1025540 | CASING;REAR |
2038174 | SHAFT;DRIVE |
1025667 | PLATE;SWASH |
4355279 | BRG.;ROL. |
927488 | RING;RETAINING |
3076 | CASING;PUMP |
4355272 | BRG.;NEEDLE |
4355277 | BRG.;NEEDLE |
4461927 | BRG.;NEEDLE |
4271350 | PIN;KNOCK |
4422627 | PIN;KNOCK |
2044792 | PLATE;VALVE |
2044793 | PLATE;VALVE |
4428917 | PISTON;SERVO |
4397537 | SPRING;COMPRES. |
4409640 | PIN;KNOCK |
4432356 | PIN |
4436322 | RING;BACK-UP |
4180349 | O-RING |
4200227 | PIN |
3081504 | LINK |
4397509 | PIN |
4465289 | PIN |
4404102 | PIN |
4144013 | PIN;SPRING |
4116299 | PIN;SPRING |
M341240 | BOLT;SOCKET |
495841 | WASHER;SPRING |
M341240 | BOLT;SOCKET |
4393030 | BOLT |
4427347 | PLUG |
9134111 | PLUG |
4509180 | O-RING |
9134110 | PLUG |
957366 | O-RING |
495841 | WASHER;SPRING |
A590912 | WASHER;SPRING |
4436271 | SENSOR;PRES. |
4365826 | O-RING |
4265372 | SENSOR;REVOL. |
4306888 | O-RING |
A590106 | WASHER;PLANE |
M340616 | BOLT;SOCKET |
4252767 | BRACKET |
M340613 | BOLT;SOCKET |
4169516 | WASHER;SPRING |
4515041 | PIN;SPRING |
4348665 | O-RING |
4180349 | O-RING |
4343074 | O-RING |
4320490 | SEAL;OIL |
930451 | RING;RETAINING |
4463047 | KIT;SEAL |
Our PRIMARY COMPETITIVE ADVANTAGES:
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Contact: Mr. Sum Huang
WeChat:+8613060908795
Whatsapp:+8613060908795
