Guangzhou Qichao Machinery Parts Co., Ltd.
| Compatible Equipment | 320C,320D,325C,330C,330D |
| Application | Excavator Main Hydraulic Pump Displacement & Flow Control |
| Production Base | Guangdong Province, China |
| Supply Ability | 1000PCS/MONTH |
| Payment Terms | T/T |
| Order Processing Cycle | Normally 1–7 working days once payment received |
| Packaging Details | Neutral Packing/Branded Packaging |
| OE Part Number: | 225-4558 |
| Warranty | 6 Months |
| Place of Origin | China |
| Model Number | 320C 330D |
| Brand Name | ZVEZDA |
View Detail Information
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Product Specification
| Compatible Equipment | 320C,320D,325C,330C,330D | Application | Excavator Main Hydraulic Pump Displacement & Flow Control |
| Production Base | Guangdong Province, China | Supply Ability | 1000PCS/MONTH |
| Payment Terms | T/T | Order Processing Cycle | Normally 1–7 working days once payment received |
| Packaging Details | Neutral Packing/Branded Packaging | OE Part Number: | 225-4558 |
| Warranty | 6 Months | Place of Origin | China |
| Model Number | 320C 330D | Brand Name | ZVEZDA |
| High Light | hydraulic proportional solenoid valve ，excavator proportional solenoid valve ，excavator proportional hydraulic solenoid valve | ||
This proportional hydraulic solenoid valve OEM number is 225-4558, short cross PN 2254558, internal model KDRDE5K-31/40E30, exclusively matched main pump proportional control circuit of 320C and 330D excavato
| Specification | Detailed Information |
|---|---|
| Full Product Name | 320C 330D Excavator Main Pump Proportional Control Solenoid Valve |
| OEM OE Number | 225-4558 / 2254558 |
| Internal Model | KDRDE5K-31/40E30 |
| Compatible Machine | 320C, 330D Medium & Large Excavator |
| Brand | ZVEZDA |
| Condition | 100% Brand New Aftermarket OEM Equivalent Spare Parts |
| Origin | Guangdong, China |
| Core Material | Alloy Integrated Valve Body + High Precision Magnetic Coil + Hardened Valve Spool |
| Working Voltage | DC24V Standard Construction Machinery Voltage |
| Wiring Design | Anti-fatigue Multi-core Harness + Integrated Sealed Waterproof Plug |
| Installation Position | Excavator Hydraulic Main Pump Regulator Valve Block |
| Shipment Lead Time | Dispatched within 1–7 working days after payment confirmation |
| Outer Packaging | Neutral Export Carton + Shockproof PE Inner Foam |
| Komatsu Parts | JCB Parts | Other Brand Parts |
|---|---|---|
| 20Y-43-41780 | 331/30884 | 4520781 |
| 22U-06-22420 | 331/30885 | 4581230 |
| 22U-06-22380 | 331/30886 | 4601592 |
| 782-5301-301 | 701/80284 | 4632710 |
| 782-5301-302 | 701/80285 | 4678921 |
| 7825-30-1301 | 60117463 | 4721563 |
| 7825-30-1302 | 60117463LM | 4739125 |
| 7824-30-1600 | 11S-49 | 4756890 |
| 7861-92-4130 | 60117464 | 4772106 |
| 7861-92-4131 | 60117465 | 4789321 |
| 20Y-43-41781 | YQ05.251.046 | 4801234 |
| 20Y-43-41782 | YQ05.251.047 | 106-0107 |
| 22U-06-22390 | YQ05.251.048 | 106-0108 |
| 22U-06-22400 | YN20S00002F3 | 106-0109 |
| 7821-30-1500 | YN20S00002F4 | 165-9569 |
| 7822-30-1200 | YN20S00002F5 | 206-3305 |
| 7823-30-1400 | LQ50S00001P1 | 134-0649 |
| 7826-30-1100 | LQ50S00001P2 | 144-6670 |
| 7827-30-1000 | 8-98074-566-0 | 152-8973 |
| 7828-30-0900 | 8-98074-567-0 | 171-2540 |
| 7829-30-0800 | 4812369 | 183-4216 |
| 20Y-43-41790 | 256-7891 | 191-6527 |
| 20Y-43-41800 | 300661-00004A | 212-7890 |
| 22U-06-22410 | 21Q6-20820 | 223-1456 |
| 22U-06-22430 | K1013849 | 234-9871 |
| 4705919 | 332/G0912 | 245-3690 |
| 4341545 | 60117466 | 4542152 |
| 4614910 | YQ05.251.049 | 4659775 |
| 4468335 | YN20S00003F1 | 4669841 |
| 4656205 | 7820-30-1700 | 4371651 |
| 4716708 | 4791230 | 4482963 |
| 702-21-60900 | —— | —— |
| 1751ES-12A6UC4B3S1 | SA-4761-12 | —— |
| 708-2H-25240 | —— | —— |
| 714-11-16840 | —— | —— |
| 714-23-15520 | —— | —— |
| 203-60-56180 | —— | —— |
| 153-6409 | —— | —— |
| 714-11-16830 | —— | —— |
| 214-5427 | —— | —— |
| 222-1399 | —— | —— |
| 0419-9902 | —— | —— |
| 223-8181 | —— | —— |
| 224-2092 | —— | —— |
| 225-0300 | —— | —— |
| 253-3809 | —— | —— |
| 225-4558 | —— | —— |
| No. | Question | Standard Answer |
|---|---|---|
| Q1 | Which excavator models fit proportional solenoid valve 225-4558? | This main pump proportional solenoid valve is specially designed for 320C and 330D medium-large excavator hydraulic pump regulator. |
| Q2 | What is the internal model and interchangeable OE code of this valve? | Cross reference OE short number is 2254558, built-in model number KDRDE5K-31/40E30. |
| Q3 | Do I need to disassemble the whole hydraulic pump during replacement? | No full pump disassembly required, plug and thread size match original, simple direct replacement. |
| Q4 | What typical machine faults can this proportional solenoid repair? | It solves insufficient digging power, slow arm/bucket movement, high fuel consumption and unstable pump output flow. |
| Q5 | What anti-interference design protects internal coil signal? | Thick multi-core anti-fatigue harness and fully sealed plug avoid signal disorder caused by vibration and dust. |
| Q6 | What DC voltage does this proportional coil support? | Standard DC24V, matching the universal power supply system of medium and large excavators. |
| Q7 | Why adopt double-layer fluorine rubber sealing structure? | Double seals effectively reduce hydraulic internal leakage even under long-time high pump pressure operation. |
| Q8 | Will the proportional control signal drift after long working hours? | High precision magnetic coil maintains stable signal without drift under continuous heavy load operation. |
| Q9 | What strict tests will each solenoid pass before delivery? | All units pass hydraulic flow test, coil resistance test, 200-hour continuous aging test and waterproof inspection. |
| Q10 | Can I buy one sample first to test matching on my 330D excavator? | Yes, single-piece sample order is supported for field matching and hydraulic performance test. |
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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