Guangzhou Qichao Machinery Parts Co., Ltd.
| Compatible Equipment | 320GC,323GC,326GC,329GC,330GC |
| Application | Excavator Main Hydraulic Pump Displacement & Flow Control |
| MOQ Support | 1 Piece Sample Order Acceptable For On-site Machine Compatibility Test |
| Supply Ability | 1000PCS/MONTH |
| Payment Terms | T/T |
| Packaging Details | Neutral Packing/Branded Packaging |
| OE Part Number | 375-4414-02 |
| Warranty | 6 Months |
| Place of Origin | China |
| Model Number | 320GC 330GC |
| Brand Name | ZVEZDA |
View Detail Information
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Product Specification
| Compatible Equipment | 320GC,323GC,326GC,329GC,330GC | Application | Excavator Main Hydraulic Pump Displacement & Flow Control |
| MOQ Support | 1 Piece Sample Order Acceptable For On-site Machine Compatibility Test | Supply Ability | 1000PCS/MONTH |
| Payment Terms | T/T | Packaging Details | Neutral Packing/Branded Packaging |
| OE Part Number | 375-4414-02 | Warranty | 6 Months |
| Place of Origin | China | Model Number | 320GC 330GC |
| Brand Name | ZVEZDA | ||
| High Light | proportional excavator solenoid valve ，proportional hydraulic solenoid valve ，cartridge excavator solenoid valve | ||
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.
| 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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| 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. |
Company Details
Business Type:
Manufacturer
Total Annual:
5000000-10000000
Employee Number:
50~100
Ecer Certification：
Verified Supplier
Guangzhou Qichao Machinery Co., Ltd. Premier Factory Specializing in R&D & Production of Excavator Electrical Spare Parts Based in Zhuji International Machinery City,Tianhe District,Guanazhou. Our full product lineup covers solenoid valves, sensors, throttle motors, controllers flameout swi... Guangzhou Qichao Machinery Co., Ltd. Premier Factory Specializing in R&D & Production of Excavator Electrical Spare Parts Based in Zhuji International Machinery City,Tianhe District,Guanazhou. Our full product lineup covers solenoid valves, sensors, throttle motors, controllers flameout swi...
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