Products

A total of 115 pages

RITO Excavator Main Pump 9257308 ZX350K-3HG HPV145 Tandem Pump Assembly 9257126 9257309 ZX350-3G Hydraulic Piston Pump

Loss of tracking power and weak arm crowd operations are clear indicators of a failing primary pump unit on busy regional infrastructure sites. When internal valve plates score from fine sand particles, your heavy excavator loses the breakout force needed for tough earthmoving, turning profitable jobs into costly field downtime. Do not let a worn power unit stall your ZX350K-3HG or ZX350-3G fleet.

Hot Tags : 9257308 Hydraulic Pump HPV145 Main Pump ZX350K-3HG Hydraulic Pump 9257126 9257309 9260886 Main Hydraulic Pump
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RITO Main Hydraulic Pump Assy 9257308 ZX350LC-3 HPV145 Variable Displacement Pump 9257126 9260886 ZX330 Axial Piston Pump

Lost travel tracking straightness and unexpected oil temperature spikes mean your twin hydraulic loops are failing under load. When internal cylinder blocks develop micro-clearances, high-pressure oil flows bypass the control circuits, stalling your machine in soft ground and missing critical project deadlines. Do not risk your primary ZX350LC-3 or ZX330 heavy construction operations.

Hot Tags : ZX350LC-3 Hydraulic Pump Hitachi Main Pump Hydraulic Piston Pump
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RITO Hydraulic Pump Assembly 9136625 EX550-3 A7VO250 Tandem Pump Assembly 9136529 0001284 EX600-3 Main Hydraulic Pump

Hydraulic system interruptions can severely affect production efficiency on large excavators. Featuring 9136625, this hydraulic pump assembly is engineered to provide dependable power transmission for EX550-3 machines, supporting demanding excavation tasks with steady hydraulic performance and responsive system control.

Hot Tags : 9136529 A7VO250 Main Pump EX550-3 Hydraulic Pump Hitachi Excavator Pump 0001284 Axial Piston Pump
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RITO Tandem Pump Assembly 4380300 EX5500-5 4455484 Mining Machine Part 4455485 4473811 9139102 Variable Displacement Pump

Equipment working in open-pit mines and large-scale earthmoving projects requires uninterrupted hydraulic power. The 4380300 tandem pump assembly is designed to deliver efficient hydraulic flow distribution, helping EX5500-5 machines maintain stable performance during continuous excavation, loading, and material handling operations.

Hot Tags : EX550LCH Hydraulic Pump Hitachi Piston Pump Hydraulic Gear Pump
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RITO Main Hydraulic Pump 4289281 EX550LCH A7VO250 Multiple Pump Assembly 9136529 EX600LCH Excavator Hydraulic Pump Assy

Hydraulic inefficiency on large excavators can lead to slower cycle times and rising maintenance expenses. Built around the proven 4289281 configuration, this multiple pump assembly delivers the hydraulic force required for EX550LCH equipment, ensuring dependable performance in quarrying, mining, and heavy earthmoving operations.
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RITO Axial Piston Pump 9257308 ZX350LCK-3 HPV145 Multiple Pump Assembly 9257126 9257309 ZX350-3 Main Hydraulic Pump

Unresponsive cylinder links and sudden operating pressure drops on reinforced demolition crawlers point directly to a degrading main axial pump. When internal cylinder barrels lose their precision sealing clearances, high-pressure fluid leaks back to the supply tank, causing severe attachment fade and slowing your project progress to a crawl. Stop letting a fatigued pump destroy the productivity of your specialized fleet.

Hot Tags : ZX350LCK-3 Hydraulic Pump Axial Piston Pump
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RITO Hydraulic Piston Pump 4289281 EX550H A7VO250 Construction Machinery Part 9136529 EX600H Excavator Axial Piston Pump

Unexpected hydraulic flow instability can quickly reduce machine productivity and increase operating costs on large excavation projects. 4289281 is engineered for demanding construction and mining operations, delivering consistent hydraulic power for EX550H and EX600H equipment while helping fleets maintain reliable digging performance and smoother machine control.

Hot Tags : EX550H Hydraulic Pump
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RITO Variable Displacement Pump 9257308 ZX350K-3 HPV145 Tandem Pump Assembly 9257309 9260886 ZX350LC-3 Piston Pump Assy

Jerky high-reach attachment actions and sudden tracking drops during high-stakes structural demolition indicate that your machine's tandem loop balances are failing. When internal piston shoes score the swashplate surface under extreme load resistance, flow output spikes or drops without warning, turning a specialized tool into a field liability. Do not let a tired main pump compromise safety on your ZX350K-3 or ZX350LC-3 projects.

Hot Tags : ZX350K-3 Hydraulic Pump
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RITO Hydraulic Piston Pump 9257308 ZX350LCH-3 HPV145 Multiple Pump Assembly 9257126 9257309 ZX330LC-3 Axial Piston Pump

Severe velocity degradation within the arm crowding circuit and erratic tracking alignment during heavy rock dumping signal dangerous internal fluid bypass. When abrasive minerals score the high-pressure sealing faces of your primary powerplant, system responsiveness hits a wall, creating massive fuel waste and costly production bottlenecks. Protect your heavy-duty ZX350LCH-3 or ZX330LC-3 crawler assets from unexpected jobsite paralysis.

Hot Tags : ZX350LCH-3 Hydraulic Pump
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RITO Excavator Main Pump Assembly 4289281 EX550LC A7VO250 Hydraulic Ram Pump 9136529 EX550-5 Main Hydraulic Pump Assembly

Hydraulic instability in EX450-class excavators often starts with inconsistent flow output, followed by weak digging force, slower cycle action, and reduced efficiency during long-hour operation. The 4289281 main hydraulic pump assembly is engineered to restore stable pressure regulation and controlled flow delivery, helping machines maintain consistent power performance in demanding mining and earthmoving environments.

Hot Tags : EX550LC Hydraulic Pump
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RITO Variable Displacement Pump 4289281 EX550 A7VO250 Tandem Pump Assembly 9136529 ZX600 ZX650 Excavator Main Pump Assy

Hydraulic performance loss on large mining excavators usually starts with inconsistent flow output, then develops into weak breakout force and unstable multi-function operation under load. The 4289281 variable displacement pump assembly is designed to restore controlled hydraulic behavior, keeping pressure output steady and supporting reliable power delivery in harsh working environments.

Hot Tags : EX550 Hydraulic Pump
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RITO Mini Excavator Hydraulic Pump 9171430 EX50U PSVD2-21 Spare Parts Assy 4403501 404189 EX55 Main Hydraulic Pump Assembly

Mini excavators in the EX50–EX55 range often suffer from reduced hydraulic precision over time, leading to jerky movement, weak digging response, and unstable pressure delivery in fine-control operations. The 9171430 hydraulic piston pump assembly is designed to restore smooth and accurate hydraulic flow, ensuring stable performance in compact machinery working under frequent start-stop cycles.

Hot Tags : 4403501 PSVD2-21 Main Pump EX50U Hydraulic Pump Hitachi Mini Pump 404189 Hydraulic Piston Pump
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