Guangzhou Qichao Machinery Parts Co., Ltd.
                                                                                                           
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375441402 Main Pump Proportional Cartridge Solenoid Valve OE 375-4414-02 For 320GC 330GC

Price Negotiable
Price: Please send mail or Whatsapp
MOQ: 1 Piece
Delivery Time: Negotiable
Brand: ZVEZDA
Product Description
375441402 Main Pump Proportional Cartridge Solenoid Valve OE 375-4414-02 For 320GC 330GC

It acts as core flow adjustment component of hydraulic main pump, converts electrical control signals into stable hydraulic output, reasonably match digging power and fuel consumption to reduce power loss under light-load excavation state.

Product Details
Specification Detailed Information
Full Product Name 320GC 330GC Excavator Main Pump Regulator Flange Proportional Solenoid Valve Assembly
OEM OE Number 375-4414-02 / 375441402
Compatible Machine 320GC, 330GC Medium & Large Excavator
Condition 100% Brand New Aftermarket OEM Equivalent Spare Parts
Origin Guangdong, China
Core Material Alloy Flange Valve Body + Anti-drift Pure Copper Electromagnetic Coil
Working Voltage DC24V Standard Construction Machinery Voltage
Wiring Design Oil-resistant Multi-core Harness + Brown 2-Pin Fully Sealed Waterproof Plug
Installation Position Excavator Hydraulic Main Pump Regulator Manifold Block
Shipment Lead Time Dispatched within 1–7 working days after payment confirmation
Outer Packaging Neutral Export Carton + Shockproof EPE Foam Inner Liner



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Q&A
No. Question Standard Answer
Q1 Which excavator models fit proportional solenoid valve 375-4414-02? This main pump proportional flange solenoid is specially designed for 320GC and 330GC medium-large excavator hydraulic pump regulator block.
Q2 What interchangeable short OE number corresponds to 375-4414-02? The cross reference short code is 375441402, two part numbers stand for the same complete proportional solenoid assembly.
Q3 What core function does this proportional valve realize? It realizes stepless adjustment of hydraulic pump displacement through electric signal, improve digging efficiency and cut fuel consumption effectively.
Q4 Do I need to fully disassemble the hydraulic pump during replacement? No full pump disassembly required, external flange bolt mounting supports quick single-piece replacement.
Q5 What typical hydraulic failures will be caused by damaged original solenoid? Insufficient digging breakout force, slow boom and bucket movement, unstable pump output and increased fuel consumption.
Q6 What design prevents control signal disorder on construction sites? Oil-resistant reinforced multi-core harness and fully sealed plug resist vibration and dust interference effectively.
Q7 What advantages does double fluorine rubber sealing bring? Double sealing structure greatly reduces internal oil leakage under long-term continuous high pump pressure operation.
Q8 What strict quality tests will each solenoid pass before delivery? Hydraulic proportional flow test, coil resistance inspection, 200-hour high temperature aging test and waterproof tightness test.
Q9 Can I buy one sample to test matching performance on excavator before bulk order? Yes, single-piece sample order is supported to check fitting and hydraulic working performance on site.

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Company Guangzhou Qichao Machinery Parts Co., Ltd.
Location 825-827, Zhuji International Machinery City, No.36 Zhuji Road, Tianhe District, Guangzhou, China
Contact Person Sales

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