1601438041344
| Specification | Detail |
|---|---|
| Part number | 708-2G-11650 |
| Assembly type | Hydraulic main pump |
| Machine application | Komatsu PC350-8M0 |
| Also referenced for | Komatsu PC300-7E0 |
| Compatible brand | Komatsu |
| Machine type | Excavator |
| Brand | LANXIN |
| Place of origin | Guangdong, China |
| Selling unit | Single item |
| Warranty | 6 months |
| Machinery test report | Provided |
| Outgoing-inspection video | Provided |
| OEM customization | Supported |
| Export markets | Southeast Asia, Central Asia, Middle East, South America, Africa, Oceania |
This is a production-class machine and the pump is built for the work that goes with it. As an excavator parts supplier, we see the assembly earning its keep on quarry faces loading shot rock, on mining sites keeping benches and haul roads in shape, and on road, bridge and rail projects shifting bulk material.
Earthmoving contractors running mixed fleets often keep one on the shelf so a breakdown does not stall a programme, while rental companies want a replacement their own fitters can finish between hires. Repair workshops are the other main group, ordering by machine model and number because the machine belongs to someone else and there is no room for a return. In all of those settings the pump is judged on one thing — whether it holds pressure through a full shift and keeps the cycle times the operator expects.
Our technical team supports buyers before and after the order. Send us your OEM part number or machine and engine details and we will confirm the correct match for your repair, overhaul or replacement job. If you are unsure what has failed, share the symptoms and our specialists will help with troubleshooting and narrow down the right assembly. We also provide installation and commissioning guidance, and share product documentation on request. With coverage across Komatsu, Caterpillar, Cummins, Isuzu, Hitachi, Sany, Doosan and Kubota machinery, we can help consolidate your parts requirements into one order.
Yes. They are two ways of writing the same number — one with dashes, one without — and both identify the same Komatsu hydraulic pump assembly. Your old unit may show either form on its housing or label, so quote whichever one you find and we will match it to your machine before dispatch.
Watch for what operators report first: slower cycle times, weak digging, sluggish boom or travel response, and hydraulic oil running hotter than it used to. Noise and lost pressure after an earlier rebuild usually point the same way. If only external seals have failed and the internal group is sound, a repair kit can be enough — send us the symptoms and we will help you judge which route makes sense.
Drain and inspect the hydraulic oil for metal particles, check the suction line for cracks or loose clamps, and look over the coupling and mounting faces for wear. Fitters normally plan a filter change at the same time so debris from the failed unit cannot travel back into the new pump. If anything on the machine looks marginal, tell us and we will advise on what to have ready.
Clean oil matters more than anything else. Keep to the machine's filter schedule, check the suction strainer for blockage, and watch oil temperature during heavy digging, because a pump that runs hot wears faster. It is also worth confirming the pump is not drawing air through a loose suction joint — aeration shows up as noise and rough response long before a pump fails.
Keep it in its original packing in a dry, covered store with the port caps left in place until the day it is fitted. Stand it on the mounting flange rather than on the shaft or ports so the drive end is not damaged. For long-term stock, the usual practice is a dust-free location away from wide temperature swings.
This is the complete main pump assembly — the whole unit is replaced as one piece rather than rebuilt on the bench. A repair kit covers the internal wear parts when the housing and rotating group are still serviceable. If your pump has scored, seized or suffered a major failure, the assembly is normally the faster option, and our team will tell you plainly which route suits your machine.
