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4120008858 1124142411 SDLG L975F L975H 119/10 Tandem Hydraulic Gear Pump

Item	Technical information / selection requirement
Main assembly material number	4120008858
Associated assembly reference	1124142411, listed together with 4120008858 by a parts supplier
Supplied catalogue reference	4120020731, paired in the supplied workbook; verify supersession or configuration before order
Pump designation	119/10 tandem hydraulic gear pump; 119-10 / 119 + 10 search notation
Supplier series designation	JHP hydraulic gear pump in a supplier listing; confirm full nameplate suffix
Construction	Two-section external gear pump with common mechanical drive
Main section displacement reference	119 cm³/rev, supplier-listed
Auxiliary section displacement reference	10 cm³/rev, supplier-listed
Primary equipment reference	SDLG / Lingong L975F wheel loader, supplier product and parts-list reference
L975H application	Listed in the supplied catalogue; confirm the machine serial number and original pump configuration
Other catalogue category	LG968 / L968F / LG978 category association only; not universal fitment
Hydraulic circuit	Loader hydraulic / working pump supply; identify main and auxiliary circuit connections
Speed reference	2200 r/min appears in a JHP supplier listing; confirm the actual rated and maximum speeds
Pressure rating	Confirm continuous, peak and auxiliary-section pressure from the agreed configuration datasheet
Theoretical flow at 1500 r/min	178.5 L/min main section + 15 L/min auxiliary section, calculated from 119/10; excludes losses
Theoretical flow at 2200 r/min	261.8 L/min main section + 22 L/min auxiliary section, calculation only; not an operating-speed recommendation
Delivered flow / efficiency	Measure at specified pressure, speed, fluid viscosity and oil temperature
Rotation	Confirm clockwise or counterclockwise viewed from the shaft end; photograph alone is insufficient
Drive shaft	Splined shaft visible in reference photographs; verify tooth count, profile, diameter and engagement length
Mounting flange	Four mounting holes and circular locating pilot in the reference photograph; verify measured drawing
Oil ports	Flange-style connections visible; compare opening size, bolt spacing, orientation and inlet/outlet assignment
Housing / finish	Blue-painted metal body in the supplied and supplier reference images; confirm material and supplied finish
Seals / hydraulic fluid	Specify required seal material and machine-approved fluid before supply
Dimensions / mass	Obtain configuration drawing and measured net weight; no verified exact dimensions available
Service seal-kit reference	4120008858010, separate repair kit, not a complete pump material number
Supply identity	Olive Branch Hydraulics aftermarket replacement; equipment names and OEM numbers are identification references

Product Information

The 4120008858 hydraulic gear pump is an aftermarket two-section tandem pump for the SDLG L975F wheel loader. The supplier-listed displacement reference is 119 cm³/rev + 10 cm³/rev on one splined drive. A supplier product listing associates it with the 1124142411 tandem pump reference.

As an SDLG L975F hydraulic pump replacement, each unit is selected by original pump number, hydraulic requirements and installation dimensions. L975H supply depends on confirming the original pump and the machine revision. Olive Branch Hydraulic Parts Co., Ltd. in Xinji, Hebei, inspects every unit before shipment and quotes on an EXW basis.

Key Features of the 119/10 Tandem Gear Pump

Two sections, one input shaft

A 119 cm³/rev working section and a 10 cm³/rev auxiliary section are driven from a single splined shaft.

Matched by full assembly number

Selection starts from 4120008858 and your old-pump label. The 119/10 designation, paint colour and general shape are not used to select the pump.

Interfaces checked before quoting

We compare spline tooth count and profile, pilot diameter, 4-hole spacing, shaft projection and every port flange against your original pump.

Section-by-section test option

For a performance test, we agree speed, pressure and fluid conditions with you first, then record the output of each section separately.

Repair parts kept separate

Seal kit 4120008858010 and 30 other service numbers are listed apart from the complete pump, which reduces mis-ordered components.

4120008858 Hydraulic Gear Pump Technical Specifications

Theoretical flow = displacement × speed ÷ 1000. These figures exclude leakage and are not guaranteed delivered flow.

Main assembly number	4120008858 (complete tandem pump)
Associated reference	1124142411 (supplier product listing)
Catalogue cross-reference	4120020731. Interfaces and hydraulics are confirmed before supply
Series reference	JHP series. Match the exact suffix to the original label
Pump type	Two-section tandem hydraulic gear pump
Displacement	119 cm³/rev + 10 cm³/rev
Theoretical flow at 1500 r/min	178.5 L/min + 15 L/min (calculated)
Theoretical flow at 2200 r/min	261.8 L/min + 22 L/min (calculated)
Speed and pressure	2200 r/min cited in supplier listing. Speed range, continuous, peak and auxiliary pressure are confirmed per configuration
Drive shaft	Splined. Tooth count, profile and diameter are confirmed against the original
Mounting and ports	Circular locating pilot, 4 mounting holes, flange-style oil connections
Rotation and seals	Rotation is confirmed viewed from the shaft end. Seal material is selected for your hydraulic fluid

Service-Part Numbers (Not for Ordering a Complete Pump)

These supplier-catalogue references identify individual components for repair. Check the exploded drawing and the production revision before you select seals, shafts, plates or housings.

Service material number	Component reference
4120008858001	Cover
4120008858002	Centering block
4120008858003	Pump body
4120008858004	Drive shaft
4120008858005	Shaft
4120008858006	Shaft
4120006298235	Side plate
4120006298207	Retaining ring
4120008858007	Bearing
4120005082212	Sealing ring
4120006298208	Plain bearing
4120006298209	Bushing
4120006298210	Sealing ring
4120006298211	Sealing ring
4120006298212	Retaining ring
4120004423215	Stud
4120004423216	Nut
4120005082221	Washer
4120008858008	Cover
4120004423219	Pump body
4120004423220	Drive shaft
4120008858009	Shaft
4120005081210	Side plate
4120005081211	Plain bearing
4120005081212	Pin
4120005081213	Sealing ring
4120005081214	Sealing ring
4120005081215	Retaining ring
4120004423222	Screw
4120005081217	Washer
4120008858010	Seal kit

Why Choose Olive Branch Hydraulics for This Pump

Inspection before every shipment

Every unit is inspected before dispatch. Test speed, pressure and fluid conditions can be agreed in advance.

Matching from samples or drawings

Send your original pump or a drawing. We match the shaft, flange and port interfaces to it.

1–2 unit prototype orders

You can fit and run a single unit on your loader before placing a distributor or fleet order.

OEM/ODM and private label

We review your specification, labelling and packaging requirements with each OEM/ODM enquiry.

Shipment photo and drawing on request

Before the unit leaves Xinji, you can check its paint, protective caps and installation dimensions.

EXW quotations

You or your forwarder control the freight route and the destination costs.

FAQ: Ordering the 4120008858 Tandem Pump

Is 119/10 a complete material number?: No. 119/10 describes the displacement combination of 119 and 10 cm³/rev. Order by the full assembly number 4120008858 and include the installation details.
Does 4120008858010 identify the complete pump?: No. It is the seal-kit reference. Tell us if you need a complete pump or repair parts.
Will this SDLG L975H gear pump fit every L975F or L975H loader?: Not automatically. Fitment depends on the installed assembly and the machine revision. LG968, L968F and LG978 appear in the same supplier category but are not confirmed fitments.
Is 4120020731 the same pump as 4120008858?: Not confirmed. A different material number may indicate a revision, so we check the interfaces and the hydraulic configuration before supply.
Can I order a single unit for testing?: Yes. Prototype orders of 1–2 units can be discussed. Each unit is quoted EXW and inspected before shipment.

Request a 4120008858 Tandem Pump Quotation

Send us the machine model, serial number, a photo of the old-pump label, the quantity you need and the destination. Pricing is quoted by quantity on an EXW basis, so include your expected order volume to receive volume pricing.

Request a quotation Ask about a 1–2 unit prototype

Photos of the drive shaft, mounting flange and every port, Complete pump, service-part numbers, or both, OEM/ODM, labelling or packaging requirements

Send Your Inquiry Today

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4120008858 1124142411 SDLG L975F L975H 119/10 Tandem Hydraulic Gear Pump