180-9588 Plunger Pump For Caterpillar 424D and 416D backhoe loader

180-9588 Plunger Pump For Caterpillar 424D and 416D backhoe loader Featured Image
  • 180-9588 Plunger Pump For Caterpillar 424D and 416D backhoe loader

Short Description:

350-7075 hydraulic piston fan motor is aftermarket replacement for Caterpillar 966,972,980K and 980M wheel loaders. It serves as the core drive unit of machine cooling system, powered by matched fan pump to drive radiator fan assembly.

Product Detail

Product Tags

description

180-9588 axial variable piston pump serves as the core hydraulic power source of CAT 424D backhoe loader. Driven by 3054 series diesel engine, it converts mechanical power into adjustable high-pressure hydraulic energy to feed both backhoe working circuit and front loader circuit, together with steering system. The built-in compound control valve dynamically adjusts pump displacement according to working load. When digging or heavy loading, it delivers larger flow; while traveling or light-duty operation, it reduces output to save power and lower heat generation. The internal core components including plungers, cylinder block, valve plate and slippers are forged from high-strength alloy steel, processed with precision grinding and nitriding hardening treatment. The friction pair maintains stable volumetric efficiency under frequent cyclic load changes, which is typical for backhoe loaders switching between digging, lifting and travelling. The cast iron pump housing undergoes stress relief annealing to eliminate casting residual stress, resisting impact and continuous vibration in dusty construction sites.

product parameters

Part No：180-9588
Product Type：Variable Displacement Axial Piston Pump
Applicable Equipment：CAT 424D, CAT416D Backhoe Loader, 3054/3054B/3054C Engine
Control Mode：Pressure-Flow Compound Control
Displacement：74 cc/rev
Nominal Working Pressure：28 MPa (280 bar)
Max Instantaneous Peak Pressure：32 MPa (320 bar)
Rated Rotation Speed：2200 rpm
Max Allowable Rotation Speed：2600 rpm
Working Medium：ISO VG46 Anti-wear Hydraulic Oil
Working Temperature Range：-25℃ ~ +110℃
Main Material：High-density cast iron housing, high-strength alloy steel core components, FKM fluorine rubber seal
Surface Treatment：Precision grinding, nitriding hardening, stress relief annealing, anti-rust coating
Shaft Specification：Original standard splined shaft

advantage

- 1:1 OEM full interchange, bolt-on fitment without modification
Manufactured strictly to CAT backhoe loader hydraulic drawings. Mounting holes, oil ports and spline shaft fully match original 180-9588. Direct replacement cuts field downtime and service labor cost.
- Nitrided alloy steel friction pair, stable performance under frequent load switching
Plunger, cylinder block and valve plate adopt deep nitrided alloy steel. It retains reliable volumetric efficiency during repeated digging and loading cycles, reduces internal leakage and extends service life.
- Pressure-flow compound control design, adaptive for combined working modes
High-precision compound control automatically adjusts displacement for mixed tasks. It delivers sufficient power for digging and reduces power loss during travel, lowering fuel consumption and hydraulic heat buildup.
- Compact reinforced cast iron housing, good shock resistance for construction sites
Compact thick cast iron housing with stress relief treatment. It copes with frequent impact and heavy dust on road and municipal job sites, preventing pump housing deformation and cracking.
- Complete bench inspection before delivery, stable performance and low failure rate
Each pump undergoes pressure retention, flow curve and variable response testing. Strict QC ensures performance meets OEM requirements for backhoe loader combined hydraulic system.

FAQ 

Q1: Which machine does 180-9588 plunger pump fit?
A1: This main hydraulic pump fits CAT424D and CAT416D backhoe loaders with 3054 series engine. It cannot be used for wheel loaders or other backhoe series. Confirm machine serial number before purchase.

Q2: Can this pump supply oil for both backhoe and front loader simultaneously?
A2: Yes. It is the main power source for the whole hydraulic system, feeding both rear digging backhoe and front loader bucket plus steering circuit at the same time.

Q3: What typical symptoms occur once this main pump wears out?
A3: Common signs: digging strength drops sharply under load, front bucket moves slowly, steering becomes heavy, pump emits abnormal noise during operation, hydraulic temperature rises quickly during continuous combined work.

Q4: What must be checked before installing this new pump?
A4: Inspect relief valves, hydraulic cylinders and filter assemblies. Flush tank and pipelines thoroughly to remove metal debris. Check whether the hydraulic oil is contaminated and replace oil before assembly.

Q5: Why does the backhoe still lack digging force after pump replacement?
A5: The fault may not be from pump. Check pressure setting of main relief valve, stuck control valve, clogged filter or air trapped inside hydraulic circuit. Air bleeding is required after installation.

warehouse

We have built four spare parts warehouses in Xuzhou, Jining, Kunshan and Changsha to provide customers from all over the world with a variety of high-quality spare parts. We can basically ship self-provided spare parts within three days after confirming the order. If the spare parts need to be adjusted or processed, they will be shipped within 7-30 days.

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