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…
| Technical item | Product identification / reference data |
|---|---|
| Brand offered | Olive Branch Hydraulics aftermarket replacement |
| Material / part number | 11C0317 |
| Pump type | Tandem / duplex external hydraulic gear pump |
| Full catalogue model | P360-G100367ZAB6/P124-G25NIG |
| Spaced model spelling | P360-G100 367ZAB 6/P124-G25NIG |
| Short search names | P360-G100367; P360-G100; P360/P124 tandem pump |
| Primary equipment reference | LiuGong CLG888 wheel loader |
| Additional supplier application | LiuGong CLG877; machine serial and original pump confirmation required |
| Circuit reference | Supplier lists 11C0317 as a steering pump for CLG888; confirm section assignment |
| Historical material number | 11C0079, listed for earlier CLG888 configurations; not a blanket interchangeable number |
| Historical pump model | P5100-F100NP3676/P124-G25G; verify conversion requirements |
| Front / rear series | 360-series front section and 124-series rear section according to the model code |
| Nominal size references | G100 / G25 model designations; exact section displacement requires assembly confirmation |
| Catalogue net weight | 40.99 kg in supplier records; other listings round to 40 or 41 kg |
| Housing reference | Cast-iron sleeve-bushing families; supplied construction to be confirmed |
| Drive shaft | Splined shaft in reference images; check count, diameter, profile and engagement length |
| Mounting flange | Two-bolt flange visible; confirm pilot diameter and bolt centres |
| Rotation | Check the rotation arrow and original assembly, viewed from shaft end |
| Ports | Confirm inlet/outlet dimensions, connection type, port orientation and both section circuits |
| 360 family displacement | Official brochure: 1.80–9.00 in³/rev across sizes; family range only |
| 360 family maximum speed | Up to 2400 rpm; not a certified limit for this exact tandem assembly |
| 360 family pressure | Up to 3500 psi; larger sizes are listed at 3250 or 3000 psi |
| 124 family displacement | Official brochure: 0.62–2.48 in³/rev across sizes; family range only |
| 124 family maximum speed | Up to 3000 rpm for the series; complete tandem assembly limit must be confirmed |
| 124 family pressure | Size-dependent table: 3500, 3250, 2900 or 2500 psi |
| Exact assembly pressure / flow / speed | Obtain confirmed drawing and test data for the ordered assembly; do not combine independent series maxima |
| Dimensions and fluid requirements | Confirm overall length, mounting clearance, oil viscosity, temperature, seal and filtration requirements |
| Image identification | One Olive Branch image plus three external supplier reference images; overlay watermarks removed; edited image lettering is illustrative |
Olive Branch Hydraulics offers an aftermarket replacement enquiry for the 11C0317 hydraulic gear pump used in LiuGong wheel-loader applications. Its catalogue model is P360-G100367ZAB6/P124-G25NIG, a tandem assembly with 360 and 124 series sections. Customers searching for a LiuGong CLG888 gear pump, 11C0317 steering pump or P360/P124 double gear pump can use the references below to identify the assembly before ordering.
| Number / name | Reference type | Selection note |
|---|---|---|
| 11C0317 | Current product material / equipment part number | Main quotation and identification reference |
| P360-G100367ZAB6/P124-G25NIG | Full pump model in supplier catalogue | Retain all section and suffix characters |
| P360-G100 367ZAB 6/P124-G25NIG | Spaced spelling of the same catalogue model | Spaces are formatting differences |
| P360-G100367 / P360-G100 | Supplier title / shortened search name | Incomplete specification; use full model when ordering |
| 11C0079 | Historical CLG888 steering-pump material number | Earlier configuration reference; confirm conversion and dimensions |
| P5100-F100NP3676/P124-G25G | Historical pump model associated with 11C0079 | Different series/model; not an automatic direct substitute |
The original pump nameplate is the preferred identification record. Match 11C0317 with the complete two-section model, shaft, flange, rotation and port arrangement. Nearby numbers such as 11C0318 and 11C0353 identify other pump references and are not included as equivalent material numbers.
Guangxi Linqian catalogue listings identify the 11C0317 assembly for the LiuGong CLG888 wheel loader. A separate loader-parts supplier catalogue also lists CLG877. Treat CLG877 as an application to confirm using the machine serial number, original part number and pump dimensions.
LEO supplier records describe 11C0317 as the CLG888 steering pump and note that 11C0079, with model P5100-F100NP3676/P124-G25G, was used before February 2007. This is a historical supplier record rather than a universal interchangeability statement. Earlier machines may require additional checks before changing to the later assembly.
The identification code contains G100 and G25 size references. Exact displacement for each supplied section must be confirmed against the assembly drawing or test sheet. Supplier records list approximately 40.99 kg net weight, with other listings rounding to 40 or 41 kg. Confirm the actual supplied weight and packing dimensions for shipment.
The official Permco 360-series brochure describes sleeve-bushing construction, cast-iron components and pressure-balanced wear plates. Its sizes cover 1.80–9.00 cubic inches per revolution and speeds up to 2400 rpm. The size table varies maximum pressure between 3500, 3250 and 3000 psi. These are family data and do not establish a tested rating for this exact 11C0317 assembly.
The official 124-series brochure covers 0.62–2.48 cubic inches per revolution and speeds up to 3000 rpm. Pressure limits vary with gear size. The rear-section series maximum must not be used as the complete tandem assembly speed limit. Confirm continuous pressure, peak pressure, permitted speed, inlet conditions and both section flows for the ordered configuration.
The reference photographs show a splined drive shaft and a two-bolt mounting flange. Check spline count, spline profile, shaft diameter, projection and engagement length, as well as flange pilot diameter and bolt centres. Confirm the rotation arrow viewed from the shaft end and provide clear photographs of every inlet and outlet.
For a tandem pump, identify the front and rear section connections and the intended machine circuits. Matching colour, weight or overall appearance alone is insufficient. Confirm overall length, mounting clearance and hose or flange accessibility before installation.
The gallery contains one Olive Branch product image plus three supplier reference images, including a shaft/nameplate close-up and different assembly views. Third-party overlay watermarks have been removed. Edited image lettering is illustrative; use the written catalogue references for model identification. The gallery illustrates identification features; agree the actual supplied configuration using the original sample and confirmed drawing.
Guangxi Linqian catalogue: 11C0317, P360-G100367ZAB6/P124-G25NIG, CLG888 and supplier weight reference.
Loader Spare Parts catalogue: 11C0317 application listing for CLG888/CLG877.
LEO supplier catalogue: CLG888 steering-pump and historical 11C0079 model note.
Permco 360 and 124 technical brochures: series construction and operating-range reference.
Send the machine model, serial number, old-pump nameplate, shaft/flange/port photographs, required quantity and destination. Specify 11C0317 and the complete P360-G100367ZAB6/P124-G25NIG model. For an older 11C0079 assembly, include the original model and measurements so the proposed replacement can be checked before supply.
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