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01
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detail
Hydraulic Gear Oil Pump 1756253 175-6253 Hydrau...
2025-12-12
Variable displacement axial piston pumps (dual).
Load sensing pressure-flow compensated (LSPC) system.
Swashplate angle control for output adjustment.
Hydraulic or electro-hydraulic servo control.
Closed-center load sensing (CLSS) circuit.
Power sharing between pumps.
Pressure cut-off (PCO) function.
Horsepower matching with the engine.
Cross-sensing between pump sections.
Displacement feedback mechanism.
High-pressure rotating groups.
Stationary valve plates.
Integral charge pump for make-up flow.
Case drain and flushing circuit.
Main system relief valves.
Anti-cavitation check valves.
Pressure compensator valves.
Flow compensator valves.
Load signal network (LS lines).
Pilot pressure supply circuit.
Pump controller (electronic or hydraulic).
Proportional solenoid valves (if equipped).
Pressure transducers for control feedback.
Mounting and drive system to the engine.
Breather and case drain ports.
Filtration system for charge and case drain oil.
Temperature management via case drain flow.
Efficiency optimization logic.
Fail-safe pressure and flow limiting.
Integrated diagnostic capability.
02
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detail
230-6279 235-8202 330D E330D 336D C9 D6T Excava...
2025-12-12
Chloroprene rubber (Neoprene)
Polyester cord (fiberglass-reinforced)
Aramid fiber (Kevlar®-type)
High-tenacity nylon fabric
Pre-stretched polyester cords
Carbon black compound
Heat-resistant rubber compound
Oil-resistant synthetic rubber
Antiozonant additives
Antioxidant additives
Sulfur or peroxide curing system
Soft rubber tooth facing
Hard rubber backing
Conductive rubber compound
Hypalon® (CSM) coating
03
view
detail
Hydraulic Gear Oil Pump 1756253 175-6253 Hydrau...
2025-12-12
Variable displacement axial piston pumps (dual).
Load sensing pressure-flow compensated (LSPC) system.
Swashplate angle control for output adjustment.
Hydraulic or electro-hydraulic servo control.
Closed-center load sensing (CLSS) circuit.
Power sharing between pumps.
Pressure cut-off (PCO) function.
Horsepower matching with the engine.
Cross-sensing between pump sections.
Displacement feedback mechanism.
High-pressure rotating groups.
Stationary valve plates.
Integral charge pump for make-up flow.
Case drain and flushing circuit.
Main system relief valves.
Anti-cavitation check valves.
Pressure compensator valves.
Flow compensator valves.
Load signal network (LS lines).
Pilot pressure supply circuit.
Pump controller (electronic or hydraulic).
Proportional solenoid valves (if equipped).
Pressure transducers for control feedback.
Mounting and drive system to the engine.
Breather and case drain ports.
Filtration system for charge and case drain oil.
Temperature management via case drain flow.
Efficiency optimization logic.
Fail-safe pressure and flow limiting.
Integrated diagnostic capability.
04
view
detail
V90N130 Excavator Main Hydraulic Pump 567-9722 ...
2025-12-12
Variable displacement axial piston pumps (dual).
Load sensing pressure-flow compensated (LSPC) system.
Swashplate angle control for output adjustment.
Hydraulic or electro-hydraulic servo control.
Closed-center load sensing (CLSS) circuit.
Power sharing between pumps.
Pressure cut-off (PCO) function.
Horsepower matching with the engine.
Cross-sensing between pump sections.
Displacement feedback mechanism.
High-pressure rotating groups.
Stationary valve plates.
Integral charge pump for make-up flow.
Case drain and flushing circuit.
Main system relief valves.
Anti-cavitation check valves.
Pressure compensator valves.
Flow compensator valves.
Load signal network (LS lines).
Pilot pressure supply circuit.
Pump controller (electronic or hydraulic).
Proportional solenoid valves (if equipped).
Pressure transducers for control feedback.
Mounting and drive system to the engine.
Breather and case drain ports.
Filtration system for charge and case drain oil.
Temperature management via case drain flow.
Efficiency optimization logic.
Fail-safe pressure and flow limiting.
Integrated diagnostic capability.
05
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detail
Engine Head Gasket 591-7736 5917736 Best Qualit...
2025-12-11
Chloroprene rubber (Neoprene)
Polyester cord (fiberglass-reinforced)
Aramid fiber (Kevlar®-type)
High-tenacity nylon fabric
Pre-stretched polyester cords
Carbon black compound
Heat-resistant rubber compound
Oil-resistant synthetic rubber
Antiozonant additives
Antioxidant additives
Sulfur or peroxide curing system
Soft rubber tooth facing
Hard rubber backing
Conductive rubber compound
Hypalon® (CSM) coating
06
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detail
Genuine Cylinder Head Water Seal Gasket Part 42...
2025-12-11
Chloroprene rubber (Neoprene)
Polyester cord (fiberglass-reinforced)
Aramid fiber (Kevlar®-type)
High-tenacity nylon fabric
Pre-stretched polyester cords
Carbon black compound
Heat-resistant rubber compound
Oil-resistant synthetic rubber
Antiozonant additives
Antioxidant additives
Sulfur or peroxide curing system
Soft rubber tooth facing
Hard rubber backing
Conductive rubber compound
Hypalon® (CSM) coating
07
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detail
Excavator Spare Parts 1908970 Fuel Priming Pump...
2025-12-11
Filter head mounting platform
Fuel inlet/outlet port connection
Filter element housing and sealing
Water separator housing (if equipped)
Fuel flow distribution chamber
Sediment collection reservoir
Water drain valve mounting
Water sensor installation point
Priming pump connection (if equipped)
Fuel heater mounting base (if equipped)
Thermostat housing for heated filters
Pressure relief valve mounting
Fuel temperature sensor port
Fuel pressure test port
Return line connection point
Fuel system venting point
Mechanical support for filter
Vibration dampening structure
Thermal expansion accommodation
Corrosion-resistant fuel contact surface
O-ring/sealing groove provision
Mounting bracket integration
Fuel line routing guide
System priming facilitation
Filter condition indication support
Fuel aeration prevention
Emergency fuel bypass provision
Service access point creation
Multiple filter configuration enablement
Complete fuel filtration assembly integration
08
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detail
E854G 854K D11n D11r D11t Bulldozer Hydraulic P...
2025-12-11
Variable displacement axial piston pumps (dual).
Load sensing pressure-flow compensated (LSPC) system.
Swashplate angle control for output adjustment.
Hydraulic or electro-hydraulic servo control.
Closed-center load sensing (CLSS) circuit.
Power sharing between pumps.
Pressure cut-off (PCO) function.
Horsepower matching with the engine.
Cross-sensing between pump sections.
Displacement feedback mechanism.
High-pressure rotating groups.
Stationary valve plates.
Integral charge pump for make-up flow.
Case drain and flushing circuit.
Main system relief valves.
Anti-cavitation check valves.
Pressure compensator valves.
Flow compensator valves.
Load signal network (LS lines).
Pilot pressure supply circuit.
Pump controller (electronic or hydraulic).
Proportional solenoid valves (if equipped).
Pressure transducers for control feedback.
Mounting and drive system to the engine.
Breather and case drain ports.
Filtration system for charge and case drain oil.
Temperature management via case drain flow.
Efficiency optimization logic.
Fail-safe pressure and flow limiting.
Integrated diagnostic capability.
09
view
detail
Hydraulic Gear Oil Pump 1756253 175-6253 Hydrau...
2025-12-11
Variable displacement axial piston pumps (dual).
Load sensing pressure-flow compensated (LSPC) system.
Swashplate angle control for output adjustment.
Hydraulic or electro-hydraulic servo control.
Closed-center load sensing (CLSS) circuit.
Power sharing between pumps.
Pressure cut-off (PCO) function.
Horsepower matching with the engine.
Cross-sensing between pump sections.
Displacement feedback mechanism.
High-pressure rotating groups.
Stationary valve plates.
Integral charge pump for make-up flow.
Case drain and flushing circuit.
Main system relief valves.
Anti-cavitation check valves.
Pressure compensator valves.
Flow compensator valves.
Load signal network (LS lines).
Pilot pressure supply circuit.
Pump controller (electronic or hydraulic).
Proportional solenoid valves (if equipped).
Pressure transducers for control feedback.
Mounting and drive system to the engine.
Breather and case drain ports.
Filtration system for charge and case drain oil.
Temperature management via case drain flow.
Efficiency optimization logic.
Fail-safe pressure and flow limiting.
Integrated diagnostic capability.
10
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detail
Excavator PCR-4B-20A Swing Device 515-5828 5155...
2025-12-11
Closed-loop swing (in some systems)
Dedicated pump and motor circuit for precise control.
Open-loop swing
Uses a section of the main hydraulic circuit with a control valve.
Swing acceleration
Requires extra torque to overcome inertia, provided by initial pressure surge.
Swing deceleration
Controlled by metering outgoing oil flow through the control valve.
Leakage paths
Internal clearances allow minimal oil flow for lubrication and cooling.
Flushing flow
Continuous case drain flow carries away heat and wear particles.
Pressure holding function
Maintains pressure on the low side to prevent motor cavitation.
Load sensing capability
In advanced systems, signals pump to provide only needed pressure.
Swing circuit filtration
Protects the precision motor components from contamination.
Fail-safe operation
Parking brake engages automatically if hydraulic pressure is lost.
Manual release (optional)
Provision to mechanically release the parking brake for towing.
Mounting flange
Secures the motor to the swing gearbox or frame.
Alignment critical
Precise alignment with the pinion gear is essential for longevity.
Heat generation
Inefficiencies and braking action create heat managed by the hydraulic system.
Commissioning procedure
Requires proper case drain line setup and brake bleeding.
Diagnostic ports
Test ports for checking main pressure, case pressure, and brake pressure.
Integration with machine ECM
Modern systems use electronic signals for control and monitoring, working with the machine's Electronic Control Module for optimal performance
11
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detail
2168978 Hydraulic Piston Pump 216-8978 for Cate...
2025-12-11
Variable displacement axial piston pumps (dual).
Load sensing pressure-flow compensated (LSPC) system.
Swashplate angle control for output adjustment.
Hydraulic or electro-hydraulic servo control.
Closed-center load sensing (CLSS) circuit.
Power sharing between pumps.
Pressure cut-off (PCO) function.
Horsepower matching with the engine.
Cross-sensing between pump sections.
Displacement feedback mechanism.
High-pressure rotating groups.
Stationary valve plates.
Integral charge pump for make-up flow.
Case drain and flushing circuit.
Main system relief valves.
Anti-cavitation check valves.
Pressure compensator valves.
Flow compensator valves.
Load signal network (LS lines).
Pilot pressure supply circuit.
Pump controller (electronic or hydraulic).
Proportional solenoid valves (if equipped).
Pressure transducers for control feedback.
Mounting and drive system to the engine.
Breather and case drain ports.
Filtration system for charge and case drain oil.
Temperature management via case drain flow.
Efficiency optimization logic.
Fail-safe pressure and flow limiting.
Integrated diagnostic capability.
12
view
detail
K3V280 E385 E390 Hydraulic Main Pump 334-9990 3...
2025-12-11
Variable displacement axial piston pumps (dual).
Load sensing pressure-flow compensated (LSPC) system.
Swashplate angle control for output adjustment.
Hydraulic or electro-hydraulic servo control.
Closed-center load sensing (CLSS) circuit.
Power sharing between pumps.
Pressure cut-off (PCO) function.
Horsepower matching with the engine.
Cross-sensing between pump sections.
Displacement feedback mechanism.
High-pressure rotating groups.
Stationary valve plates.
Integral charge pump for make-up flow.
Case drain and flushing circuit.
Main system relief valves.
Anti-cavitation check valves.
Pressure compensator valves.
Flow compensator valves.
Load signal network (LS lines).
Pilot pressure supply circuit.
Pump controller (electronic or hydraulic).
Proportional solenoid valves (if equipped).
Pressure transducers for control feedback.
Mounting and drive system to the engine.
Breather and case drain ports.
Filtration system for charge and case drain oil.
Temperature management via case drain flow.
Efficiency optimization logic.
Fail-safe pressure and flow limiting.
Integrated diagnostic capability.
13
view
detail
K7V180 K7V180DTP-1E0C Hydraulic Main Pump for E...
2025-12-11
Variable displacement axial piston pumps (dual).
Load sensing pressure-flow compensated (LSPC) system.
Swashplate angle control for output adjustment.
Hydraulic or electro-hydraulic servo control.
Closed-center load sensing (CLSS) circuit.
Power sharing between pumps.
Pressure cut-off (PCO) function.
Horsepower matching with the engine.
Cross-sensing between pump sections.
Displacement feedback mechanism.
High-pressure rotating groups.
Stationary valve plates.
Integral charge pump for make-up flow.
Case drain and flushing circuit.
Main system relief valves.
Anti-cavitation check valves.
Pressure compensator valves.
Flow compensator valves.
Load signal network (LS lines).
Pilot pressure supply circuit.
Pump controller (electronic or hydraulic).
Proportional solenoid valves (if equipped).
Pressure transducers for control feedback.
Mounting and drive system to the engine.
Breather and case drain ports.
Filtration system for charge and case drain oil.
Temperature management via case drain flow.
Efficiency optimization logic.
Fail-safe pressure and flow limiting.
Integrated diagnostic capability.
14
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detail
Construction Machinery Parts Oil Water Separato...
2025-12-11
|
1.Product Name: |
Differential Pressure Sensor |
|
2.Part number: |
4339559 9101532 9102068 |
|
3.Compatible For: |
Hitachi EX200 Series |
|
4.Leading time: |
2-3 days |
|
5.Packing way: |
Neutral packing |
|
6.Price: |
USD40 |
15
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detail
Excavator Parts 329FL Hydraulic Pump 3390514 33...
2025-12-11
Variable displacement axial piston pumps (dual).
Load sensing pressure-flow compensated (LSPC) system.
Swashplate angle control for output adjustment.
Hydraulic or electro-hydraulic servo control.
Closed-center load sensing (CLSS) circuit.
Power sharing between pumps.
Pressure cut-off (PCO) function.
Horsepower matching with the engine.
Cross-sensing between pump sections.
Displacement feedback mechanism.
High-pressure rotating groups.
Stationary valve plates.
Integral charge pump for make-up flow.
Case drain and flushing circuit.
Main system relief valves.
Anti-cavitation check valves.
Pressure compensator valves.
Flow compensator valves.
Load signal network (LS lines).
Pilot pressure supply circuit.
Pump controller (electronic or hydraulic).
Proportional solenoid valves (if equipped).
Pressure transducers for control feedback.
Mounting and drive system to the engine.
Breather and case drain ports.
Filtration system for charge and case drain oil.
Temperature management via case drain flow.
Efficiency optimization logic.
Fail-safe pressure and flow limiting.
Integrated diagnostic capability.
16
view
detail
SBS120 SBS-120 E320D Hydraulic Pump 397-3680 Hy...
2025-12-11
Variable displacement axial piston pumps (dual).
Load sensing pressure-flow compensated (LSPC) system.
Swashplate angle control for output adjustment.
Hydraulic or electro-hydraulic servo control.
Closed-center load sensing (CLSS) circuit.
Power sharing between pumps.
Pressure cut-off (PCO) function.
Horsepower matching with the engine.
Cross-sensing between pump sections.
Displacement feedback mechanism.
High-pressure rotating groups.
Stationary valve plates.
Integral charge pump for make-up flow.
Case drain and flushing circuit.
Main system relief valves.
Anti-cavitation check valves.
Pressure compensator valves.
Flow compensator valves.
Load signal network (LS lines).
Pilot pressure supply circuit.
Pump controller (electronic or hydraulic).
Proportional solenoid valves (if equipped).
Pressure transducers for control feedback.
Mounting and drive system to the engine.
Breather and case drain ports.
Filtration system for charge and case drain oil.
Temperature management via case drain flow.
Efficiency optimization logic.
Fail-safe pressure and flow limiting.
Integrated diagnostic capability.