How Does A Tandem Gear Pump Work?
Tandem gear pumps deliver independent flow from one shaft. Learn how dual stage gear pumps power complex hydra…
| Parameter | Specification |
|---|---|
| Part number | 4120003117 |
| Pump type | Tandem external gear pump |
| Listed application | SDLG LG956V wheel loader |
| Shaft and mounting | Splined input shaft, flange mount |
| Supply type | Aftermarket, not genuine SDLG |
| Prototype order | 1–2 units, agreed per order |
| Shipping and inspection | EXW Xinji, Hebei; all units inspected |
The 4120003117 hydraulic gear pump is a tandem external gear pump listed for the SDLG LG956V wheel loader hydraulic system. Olive Branch Hydraulics supplies it as an aftermarket replacement from Xinji, Hebei, and match it to your machine serial number and installed pump before dispatch.
It is not a genuine SDLG product. Often searched as a Lingong double gear pump, the pictured unit has a blue finish, a splined input shaft, a mounting flange and side oil connections.
Ratings are confirmed against your original pump, nameplate or drawing.
| Part number | 4120003117 |
|---|---|
| Pump type | Tandem (double) external gear pump |
| Listed application | SDLG LG956V wheel loader hydraulic system |
| Finish | Blue paint, as pictured |
| Input shaft | Splined; profile, tooth count and diameter matched to your pump |
| Mounting | Flange; pilot diameter and hole centres matched to your pump |
| Oil connections | Side inlet and outlet ports; connection type confirmed before supply |
| Rotation | Confirmed as viewed from the shaft end |
| Displacement per section | Confirmed from original pump, nameplate or drawing |
| Pressure, speed and flow | Confirmed against your hydraulic requirements before quotation |
| Installation length | Measured against your original pump |
| Supply type | Aftermarket, not genuine SDLG |
The front and rear gear sections share one splined input and feed two circuits from a single mounting point.
We quote from 4120003117 plus your serial number, which lowers the risk of buying a pump for a different machine build.
We compare the spline, flange, ports, rotation and length with your sample or drawing before we ship.
We inspect every unit before shipment, including 1–2-unit prototype orders.
Distributors can discuss private-label marking and custom packaging on OEM orders.
Machine serial number, original part number, and photos of the installed pump and its nameplate.
We check the spline profile and count, flange pilot and hole centres, ports, rotation and installation length.
You can order 1–2 units to test the fit before a larger order.
We inspect every unit before shipment.
Your forwarder collects the goods in Xinji, Hebei.
Replaces the listed tandem pump once the serial number has been checked.
Dealers who serve LG956V fleets and need part-number-specific replacements.
Workshops that rebuild loader hydraulic systems during overhauls.
Tandem gear pumps made to your sample or drawing under OEM/ODM terms.
| Incoterms | EXW · Xinji, Hebei, China |
|---|---|
| Prototype quantity | 1–2 units · Agreed per order |
| Inspection | All units · Before shipment |
| Customisation | OEM / ODM · Built to your sample or drawing |
Send your machine serial number, nameplate photos and planned quantity. We will quote the prototype price and volume tiers together.
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