Place of Origin:
China
Brand Name:
Komatsu
Model Number:
PC290NLC-8
This hydraulic main pump assembly is quoted on part number 708-3D-00020 (also written 7083D00020) for the Komatsu PC120-8 and PC130-8 excavator class. The published pump assembly breakdown lists 708-3D-00020 against the PC130-8 and PC138US-8 at approximately 170 kg, while sellers also apply the same number to the PC120-8. The HPD56 and LPD56 rotary group is documented for the PC120-8, and the earlier PC120-6 and PC120-7 machines use the 708-1L group on the HPV95 frame. Confirm the machine model, serial number and pump plate number before ordering, because three pump frames share this size class.
| Product Name | Hydraulic Main Pump Assembly |
|---|---|
| Primary Part Number | 708-3D-00020; 7083D00020 |
| Subassembly and Parts | 708-3D-01020 pump subassembly; 708-3D-04130; 708-3D-12130 shaft; 708-2L-32260 bearing |
| Pump Frame | HPD56 and LPD56 rotary group documented for PC120-8; HPV95 frame serves the 708-1L group on PC110-7, PC120-7, PC130-7 and PC130-8 |
| Weight | About 170 kg for the pump assembly on this number |
| Documented Machines | 708-3D-00020 is published against PC130-8, PC130-8MO and PC138US-8; sellers also apply it to PC120-8 |
| Earlier Series Numbers | PC120-6 and PC120-7: 708-1L-00651; 708-1L-00413; 708-1L-00071; 708-1L-00032. PC130-7: 708-1L-00651; 708-1L-01650; 708-2L-04240; 708-1L-21531. PC100-5 and PC120-5: 708-23-04014 |
| Larger Machine Numbers Not for This Class | PC200-6, PC200-7 and PC200-8: 708-2L-00300; 708-2L-00400; 708-2L-31430; 708-2L-31411; 708-2L-06470. PC1250-8: 708-2L-00680; 708-2L-00681; 708-2L-00682; 708-2L-00690; 708-2L-00691; 708-2L-00612; 708-1L-00800 |
| Condition | New aftermarket, new original and rebuilt units are all traded |
| Packaging | Drained, ports plugged, regulator braced, timber crate |
| Number Forms | 708-3D-00020; 7083D00020 |
|---|---|
| Assembly and Subassembly | 708-3D-00020 pump assembly; 708-3D-01020 pump subassembly; 708-3D-04130; 708-3D-12130 shaft; 708-2L-32260 bearing; 708-2L-31114 |
| Compatible Machines | PC120-8; PC130-8; PC130-8MO; PC138US-8; PC128UU-6; PC138-8; and quoted for PC120-6; PC120-7; PC130-7 |
| Pump Frames in This Class | HPD56; LPD56; HPV95 |
A published pump assembly breakdown lists 708-3D-00020 as the pump assembly for PC130-8 and PC138US-8 at about 170 kg, with 708-3D-01020 as its subassembly. Sellers apply the same number to PC120-8. Confirm whether the machine in hand is a PC120-8 or a PC130-8 before ordering.
HPD56 and LPD56 are documented against PC120-8, PC128UU-6, PC130-8 and PC138-8. HPV95 is documented against PC110-7, PC120-7, PC130-7 and PC130-8. The 708-3D group is documented against PC130-8 and PC138US-8. Rotary groups and regulators differ between the frames.
PC120-5 and PC100-5 sit on 708-23-04014, the PC120-6 and PC120-7 on the 708-1L group, and the PC120-8 on the HPD56 and LPD56 frame or the 708-3D group. A single listing offering all of them under one number is describing a family, not one pump.
708-2L-00300, 708-2L-00400, 708-2L-31430 and 708-2L-31411 belong to PC200-6, PC200-7 and PC200-8, and 708-2L-00680 to 708-2L-00691 belong to PC1250-8. Neither group fits a PC120-8 or PC130-8.
The same 708-3D-00020 number is advertised from about USD 720 to about USD 3,650, and listings that group PC120 to PC200 in one title run from about USD 400 to about USD 4,000. Compare per unit and state the condition tier in writing.
Rotary group and cylinder block; valve plate left and right; drive shaft; piston shoe and set plate; regulator and servo piston; seal and gasket kit; pilot gear pump; charge pump; control valve; swing motor; travel motor; centre joint; hydraulic oil cooler; pressure sensor.
A hydraulic main pump assembly for the Komatsu PC120-8 and PC130-8 class, quoted on 708-3D-00020.
A published assembly breakdown lists 708-3D-00020 against the PC130-8 and PC138US-8.
No, the PC120-6 and PC120-7 use the 708-1L group.
No, that is a much larger pump.
About 170 kg on this number.
The machine model and serial, and the pump plate number from the old unit.
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