155-5109 1555109 hydraulic pump for Caterpillar 416C 426C 428C 436C backhoe loader
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Product Name: Main Hydraulic Piston Pump Assembly
OEM Part Number: 155-5109, 1555109
Applicable Machines: Caterpillar CAT 416C, 426C, 428C, 436C Backhoe Loader
Product Type: Variable displacement axial piston hydraulic pump
Condition: Aftermarket New construction machinery spare part
2.Core Advantages
Aftermarket new piston pump manufactured strictly to OEM specifications, fully hydraulic bench tested before shipment
High precision cylinder block, piston and valve plate assembly, low internal leakage, stable power supply for digging, loading and stabilizer operation of backhoe loader
Load sensing control system, automatic flow adjustment according to working load, better energy saving performance
High-performance sealing components, outstanding heat resistance and anti-aging property, reliable for long time continuous operation
Original mounting flange, shaft and oil port layout, direct bolt-on replacement without modification, reduce machine downtime
12-month warranty under correct installation and normal operating conditions
3.Technical Data
Pump Type: Variable displacement axial piston pump
Displacement: 74 ml/r
Rated Working Pressure: 28 MPa
Peak Pressure: 35 MPa
Control Mode: Load sensing control
Rotation Direction: Clockwise
Drive Shaft: Splined shaft
Mounting: CAT standard flange
Applicable Machine: CAT C series backhoe loader
4.FAQ
Q1: Which machine models fit 155-5109 hydraulic pump?
A1: Fits Caterpillar 416C, 426C, 428C, 436C backhoe loader.
Q2: Is this pump a direct replacement for original CAT pump?
A2: Yes, all dimensions and hydraulic parameters match OEM standard for direct installation.
Q3: What is the warranty term?
A3: 12-month warranty for manufacturing defects with proper installation.