PRODUCTS CENTER

Home

Products

543-5391 Hydraulic Pump Solenoid Valve KDRDE5K-50/30D30-143/CT for CAT 320GC 336GC Excavator

543-5391 Kawasaki proportional solenoid valve (KDRDE5K-50/30D30-143/CT) fits CAT GC series excavators. The 24V linear control stabilizes hydraulic pump flow, fixing weak operation, engine lugging and fluctuating hydraulic pressure with direct OEM installation.

Product Full Name

Hydraulic Pump Proportional Solenoid Valve for CAT GC Excavator

OEM Part Number: 543-5391

Kawasaki Model: KDRDE5K-50/30D30-143/CT, Made in Japan

Applicable Models

CAT 320GC,323GC,325GC,330GC,336GC,345GC,349GC with C7.1/C9.3 engine; Compatible with CAT 320D,323D,336D2GC equipped with Kawasaki main pump.

Technical Specifications

Power supply: DC 24V
Connector: 2-pin waterproof exclusive CAT plug with anti-reverse buckle
Structure: Multi-orifice spool valve with adjustable top screw, single-ear fixed bracket
Control logic: Linear current control, adjust pump displacement to match engine load

Function & Faults

It controls main pump flow to balance digging power and fuel consumption. Failed valve causes slow movement, engine lugging, unstable hydraulic pressure and high fuel usage.

Installation Tips

Relieve hydraulic pressure before disassembly. Keep valve clean to avoid spool stuck. Replace sealing rings if damaged. Fasten connector tightly, adjust pressure slightly with top screw after installation.

中文参数项	对应详情	English Parameter
原厂零件号	543-5391	OEM Part No.	543-5391
阀体型号	KDRDE5K-50/30D30-143/CT	Valve Model	KDRDE5K-50/30D30-143/CT
适配机型	卡特 320GC/323GC/330GC/336GC/349GC、320D/323D	Fit Models	CAT 320GC/323GC/330GC/336GC/349GC, CAT320D/323D
适配发动机	C7.1、C9.3	Engine	C7.1,C9.3
工作电压	DC 24V	Working Voltage	DC 24V

插头规格	卡特专用两孔防水插头	Connector	CAT exclusive 2-pin waterproof plug
固定方式	单耳支架螺丝固定	Mounting	Single-ear bracket mounting
附加功能	顶部可手动微调压力	Extra Function	Top screw for manual pressure adjustment
安装位置	液压主泵阀体	Install Position	Hydraulic main pump valve body