Home / Products / Hydraulic Pump / Piston Pump / R902409565 AEA4VSO125DFR1/30R-PZB13K99 Axial Piston Variable Pump A4VSO A4VSO71/125/750/180/250/500/355

R902555191 APA4VSO250LR2DY/30R-VZB25U35-SO757 Axial Piston Variable Pump A4VSO A4VSO71 A4VSO125 A4VSO750 A4VSO180 A4VSO250 A4VSO500 A4VSO355

R902409565 AEA4VSO125DFR1/30R-PZB13K99 Axial Piston Variable Pump A4VSO A4VSO71/125/750/180/250/500/355

Warranty: 12 Months just like OEM Pump
Mark: SENHENGYUAN Hydraulics
Short Lead Time, Prompt Delivery

Wechat:+86 188-7629-1732

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E: wise@fjzhenyuan.com

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Product Description

A4VSO Series Axial Piston Variable Pump
The A4VSO series axial piston variable pump is a high-performance, heavy-duty hydraulic core component designed for the most demanding industrial and mobile hydraulic systems. Spanning a comprehensive range of models including A4VSO71, A4VSO125, A4VSO180, A4VSO250, A4VSO355, A4VSO500, and A4VSO750, this series delivers exceptional pressure output, precise flow control, and long-term operational reliability. The specialized model AEA4VSO125DFR1/30R-PZB13K99 (part number R902409565) is optimized for high-pressure, continuous-operation scenarios, making it a top choice for heavy machinery and critical industrial equipment.
Core Features
Advanced Variable Displacement TechnologyThe A4VSO series adopts a state-of-the-art variable displacement design, enabling real-time adjustment of output flow to match dynamic system demands. This adaptability maximizes energy efficiency by eliminating unnecessary power consumption, whether for low-flow precision control tasks or high-flow heavy-load operations. It also ensures consistent system pressure, reducing wear on downstream components and extending the overall service life of the hydraulic system.
Robust Construction for Extreme Working ConditionsBuilt with high-strength alloy cylinder blocks, precision-machined piston assemblies, and wear-resistant valve plates, the pump excels in withstanding ultra-high system pressures, mechanical shock, and harsh environmental factors. It resists abrasion, corrosion, and temperature fluctuations, delivering stable performance in applications such as mining, large-scale construction, and heavy industrial manufacturing, while minimizing maintenance frequency and costs.
Smooth Operation & Low Noise EmissionThe optimized axial piston structure and hydraulic balance design minimize internal friction and pressure pulsations during operation, resulting in ultra-smooth performance and low noise levels. This feature is particularly beneficial for indoor industrial equipment and precision machinery where noise and vibration control are critical requirements, improving workplace safety and comfort.
Modular Design for Easy Integration & MaintenanceWith a compact, modular structure, the A4VSO series pumps are easy to integrate into various hydraulic system layouts, even in space-constrained installations. The standardized interface and disassembly-friendly design simplify routine maintenance, part replacement, and system upgrades, significantly reducing equipment downtime and operational disruptions.
Model-Specific Advantages
Small-to-Mid Displacement Models (A4VSO71/A4VSO125/A4VSO180): Compact and lightweight, these models are ideal for medium-pressure, medium-flow applications such as construction machinery, agricultural equipment, and light industrial systems. The AEA4VSO125DFR1/30R-PZB13K99 (R902409565) variant features a specialized control mechanism that enhances load response speed and pressure stability for precision tasks.
Large-Displacement Models (A4VSO250/A4VSO355/A4VSO500/A4VSO750): These high-power variants provide ultra-high flow and pressure output, tailored for extreme heavy-load applications including mining crushers, large-scale injection molding machines, offshore drilling platforms, and heavy-duty metal forming presses.
Typical Applications
The A4VSO series axial piston variable pump is widely utilized across multiple industries:
Construction machinery (excavators, bulldozers, crawler cranes, concrete pumps)
Mining equipment (mining trucks, crushers, drilling rigs, conveyor systems)
Industrial machinery (heavy-duty presses, injection molding machines, steel rolling mills)
Marine and offshore equipment (ship deck machinery, offshore drilling platforms)
Agricultural machinery (large harvesters, heavy-duty tractors, irrigation systems)
Whether for precision control tasks or extreme heavy-load operations, the A4VSO series stands as a reliable, high-efficiency hydraulic solution for modern industrial systems.

Table of values (theoretical values, without efficiency and tolerances; values rounded)
  Nominal size A4VSO71 A4VSO125 A4VSO180 A4VSO250 
 Nominal pressure p N bar 350 350 350 350 
 Maximum pressure pmax bar 450 450 450 450 
 Displacement Vg max cm³ 71 125 180 250 
 Speed Max. speed n max rpm 2200 1800 1800 1500 
 Flow at n max q V max l/min 156 225 324 375 
 Power Δ p = 350 bar P max kW 91 131 189 219 
 Torque Δ p = 350 bar Tmax Nm 395 696 1002 1391 
 Weight (approx.) m kg 53 88 102 184 
 
 
 Nominal size A4VSO355 A4VSO500 A4VSO750 A4VSO1000 
 Nominal pressure p N bar 350 350 350 350 
 Maximum pressure pmax bar 450 450 450 450 
 Displacement Vg max cm³ 355 500 750 1000 
 Speed Max. speed n max rpm 1500 1320 
 1000 
 Flow at n max q V max l/min 533 660 
 1000 
 Power Δ p = 350 bar P max kW 311 385 525 583 
 Torque Δ p = 350 bar Tmax Nm 1976 2783 4174 5565 
 Weight (approx.) m kg 207 320 460 605 
  
More models：

R902473712	HA4VSO355DFR1/30R+EA4VSO125DFR1/30R
R902475057	EA4VSO125DFR1/30R+EA4VSO71DFR1/10R
R902515808	ALA4VSO125DFR1/30R-PZB25U34
R902515806	ALA4VSO125DFR1/30R-PZB25U01
R902543191	ALA4VSO125DFR1/30R-AZB25U34
R902543190	ALA4VSO125DFR1/30R-AZB25U31
R902543188	ALA4VSO125DFR1/30R-AZB25N00
R902497954	AEA4VSO125DFR1/30R-VZB25U99
R902497953	AEA4VSO125DFR1/30R-VPB25U68
R902497442	AEA4VSO125DFR1/30R-VPB25U33
R902512526	AEA4VSO125DFR1/30R-PZB25U99
R902473607	AEA4VSO125DFR1/30R-PZB13X10
R902413980	AEA4VSO125DFR1/30R-PZB13N00
R902409565	AEA4VSO125DFR1/30R-PZB13K99
R902436497	AEA4VSO125DFR1/30R-PZB13K34
R902418408	AEA4VSO125DFR1/30R-PZB13K01-SO30
R902424287	AEA4VSO125DFR1/30R-PZB13G40-SO484
R902420477	AEA4VSO125DFR1/30R-PZB13G40
R902475128	AEA4VSO125DFR1/30R-PPB25U33
R902412270	AEA4VSO125DFR1/30R-PPB13N00
R902444069	AEA4VSO125DFR1/30R-PPB13K68
R902413979	AEA4VSO125DFR1/30R-PPB13K34
R902405052	AEA4VSO125DFR1/30R-PPB13K33
R902422142	AEA4VSO125DFR1/30L-PPB13K99
R910942477	AEA4VSO125DFR1/22R-PZB13K27
R910938738	AEA4VSO125DFR1/22R-PZB13G40-SO484
R910946878	AEA4VSO125DFR1/22R-PPB13K33-SO86
R910961151	AEA4VSO125DFR1/22R-PPB13G70-SO484
R910961520	AEA4VSO125DFR1/22L-PPB13K99-SO86
R910932186	AEA4VSO125DFR1/10X-PZB13N00-SO89
R910935562	AEA4VSO125DFR1/10X-PZB13K27
R910932189	AEA4VSO125DFR1/10X-PPB13N00-SO89
R910929890	AEA4VSO125DFR1/10X-PPB13N00-SO86
R910936826	AEA4VSO125DFR1/10X-PPB13K99-SO89
R910935419	AEA4VSO125DFR1/10X-PPB13K99
R910932187	AEA4VSO125DFR1/10X-PPB13K34-SO89
R910932190	AEA4VSO125DFR1/10X-PPB13K33-SO89
R902405810	AAA4VSO125DFR1/30R-PKD63N00
R902421705	AA4VSO125DFR1/30R-VZB13N00
R902563144	AA4VSO125DFR1/30R-VPB25UB4C
R902531386	AA4VSO125DFR1/30R-VPB25UB4
R902493679	AA4VSO125DFR1/30R-VPB25U99
R902537470	AA4VSO125DFR1/30R-VPB13N00
R902421707	AA4VSO125DFR1/30R-VPB13K34
R902490585	AA4VSO125DFR1/30R-PZB25U99-SO86
R902535895	AA4VSO125DFR1/30R-PZB25U99
R902532233	AA4VSO125DFR1/30R-PZB25U68-SO86
R902490584	AA4VSO125DFR1/30R-PZB25U34-SO86
R902515809	AA4VSO125DFR1/30R-PZB25U34
R902515807	AA4VSO125DFR1/30R-PZB25U01
R902536078	AA4VSO125DFR1/30R-PZB25N00
R902459567	AA4VSO125DFR1/30R-PZB13N00-SO86
R902414712	AA4VSO125DFR1/30R-PZB13N00
R902447640	AA4VSO125DFR1/30R-PZB13L60-SO86
R902443394	AA4VSO125DFR1/30R-PZB13K34-SO86
R902416239	AA4VSO125DFR1/30R-PZB13K34
R902443395	AA4VSO125DFR1/30R-PZB13K33-SO86
R902433125	AA4VSO125DFR1/30R-PZB13K33
R902435248	AA4VSO125DFR1/30R-PZB13K04
R902555215	AA4VSO125DFR1/30R-PPB25UB3
R902542435	AA4VSO125DFR1/30R-PPB25U34
R902413888	AA4VSO125DFR1/30R-PPB13N00
R902411632	AA4VSO125DFR1/30R-PPB13KB4
R902477312	AA4VSO125DFR1/30R-PPB13KB2-SO318
R902414711	AA4VSO125DFR1/30R-PPB13K34
R902450521	AA4VSO125DFR1/30R-PPB13K04
R902492729	AA4VSO125DFR1/30R-FZB25U99
R902516177	AA4VSO125DFR1/30R-FZB25U34
R902512426	AA4VSO125DFR1/30R-FZB25U04
R902563702	AA4VSO125DFR1/30R-FPB25U33
R902545063	AA4VSO125DFR1/30R-FPB25U01
R902469731	AA4VSO125DFR1/30R-FPB13N00
R902550651	AA4VSO125DFR1/30R-EPB13N00-S2079
R902477847	AA4VSO125DFR1/30L-VZB13N00
R902494722	AA4VSO125DFR1/30L-VPB25U68
R910947089	AA4VSO125DFR1/22R-PZB13K33
R910932257	AA4VSO125DFR1/10X-PZB13N00
R910932258	AA4VSO125DFR1/10X-PZB13K34
R910932743	AA4VSO125DFR1/10X-PZB13K33
R910908556	AA4VSO125DFR1/10X-PZB13K27-SO86
R910901973	AA4VSO125DFR1/10X-PPB13N00
R902563704	A4VSO125DFR1/30R+A4VSO71DFR1/10R
R902516320	A4VSO125DFR1/30R+A4VSO125DFR1+A4VSO125DF
R902411517	A4VSO125DFR1/30R+A4VSO125DFR1/30R
R902490583	A4VSO125DFR1/30R+A4VSO125DFR1/30R
R902516179	A4VSO125DFR1/30R+A4VSO125DFR1/30R
R902535897	A4VSO125DFR1/30R+A4VSO125DFR1/30R
R902542433	A4VSO125DFR1/30R+A4VSO125DFR1/30R
R902563213	A4VSO125DFR1/30R+A10VSO45DR/31RC
R902482272	A4VSO125DFR1/30R+A10VSO45DFR1/31R
R902555217	A4VSO125DFR1/30R+A10VSO28DFR1/31R
R902462891	A4VSO125DFR1/30L+A4VSO125DFR1/30L

Wise

A4VSO250 pump replacement for industrial systems A4VSO variable pump repair kit A4VSO series pump spare parts AEA4VSO125DFR1 compatible hydraulic pump A4VSO125 replacement axial piston pump Industrial-grade A4VSO500 variable displacement pump AEA4VSO125DFR1/30R-PZB13K99 high-performance hydraulic pump A4VSO355 variable pump for construction equipment Energy-efficient A4VSO71 axial piston pump Precision control AEA4VSO125DFR1 hydraulic pump

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Nominal size				A4VSO71	A4VSO125	A4VSO180	A4VSO250
Nominal pressure		p N	bar	350	350	350	350
Maximum pressure		pmax	bar	450	450	450	450
Displacement		Vg max	cm³	71	125	180	250
Speed	Max. speed	n max	rpm	2200	1800	1800	1500
Flow	at n max	q V max	l/min	156	225	324	375
Power	Δ p = 350 bar	P max	kW	91	131	189	219
Torque	Δ p = 350 bar	Tmax	Nm	395	696	1002	1391
Weight (approx.)		m	kg	53	88	102	184

Nominal size				A4VSO355	A4VSO500	A4VSO750	A4VSO1000
Nominal pressure		p N	bar	350	350	350	350
Maximum pressure		pmax	bar	450	450	450	450
Displacement		Vg max	cm³	355	500	750	1000
Speed	Max. speed	n max	rpm	1500	1320		1000
Flow	at n max	q V max	l/min	533	660		1000
Power	Δ p = 350 bar	P max	kW	311	385	525	583
Torque	Δ p = 350 bar	Tmax	Nm	1976	2783	4174	5565
Weight (approx.)		m	kg	207	320	460	605

R902409565 AEA4VSO125DFR1/30R-PZB13K99 Axial Piston Variable Pump A4VSO A4VSO71/125/750/180/250/500/355

A4VSO Series Axial Piston Variable Pump

Core Features

Model-Specific Advantages

Typical Applications