Guangzhou Qichao Machinery Parts Co., Ltd.
| Compatible Equipment | E320B,E320C,E320D |
| Application | Excavator Main Pump Hydraulic Flow Control |
| Order Processing Cycle | Normally 1–7 working days once payment received |
| Supply Ability | 1000PCS/MONTH |
| Payment Terms | T/T |
| Production Base | Guangdong, China |
| Packaging Details | Neutral Packing/Branded Packaging |
| Warranty | 6 Months |
| OE Part Number | 139-3990 |
| Place of Origin | China |
| Model Number | E320B E320C |
| Brand Name | ZVEZDA |
View Detail Information
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Product Specification
| Compatible Equipment | E320B,E320C,E320D | Application | Excavator Main Pump Hydraulic Flow Control |
| Order Processing Cycle | Normally 1–7 working days once payment received | Supply Ability | 1000PCS/MONTH |
| Payment Terms | T/T | Production Base | Guangdong, China |
| Packaging Details | Neutral Packing/Branded Packaging | Warranty | 6 Months |
| OE Part Number | 139-3990 | Place of Origin | China |
| Model Number | E320B E320C | Brand Name | ZVEZDA |
| High Light | cartridge excavator solenoid valve ，cartridge hydraulic solenoid valve ，excavator hydraulic solenoid valve | ||
It is the core power matching control component of excavator hydraulic pump system. After receiving PWM signal from equipment ECU, the solenoid generates adjustable electromagnetic thrust to drive precision multi-groove hardened spool, adjust pilot hydraulic flow in real time.
| Specification | Detailed Information |
|---|---|
| Brand | ZVEZDA |
| Full Product Name | E320B/E320C/E312B/E325B Medium Excavator 24V Main Pump Load Sensing Cartridge Solenoid Valve 139-3990 (1393990) |
| OEM Part Number | 139-3990 / 1393990 |
| Compatible Equipment | E320B, E320C, E312B, E325B Medium Hydraulic Excavator |
| Matched System | Variable Displacement Hydraulic Main Pump Regulator Load Sensing Control Circuit |
| Rated Voltage | DC24V |
| Plug Feature | Black 2-Pin Fully Sealed Integrated Injection Waterproof Plug |
| Condition | 100% Brand New Aftermarket OEM Equivalent Complete Valve Assembly |
| Origin | Guangdong, China |
| Core Material | Ion Nitride Hardened Multi-Groove Alloy Spool + Low-loss Oxygen-Free Copper Electromagnetic Coil + Galvanized Anti-Rust Valve Body |
| Installation Position | Excavator Hydraulic Main Pump Threaded Cartridge Valve Hole |
| Shipment Lead Time | 1–7 working days after payment confirmation |
| Outer Packaging | Neutral Export Carton + Shockproof EPE Foam Inner Liner |
| Series 1 PN | Series 2 PN | Universal Spare Part Numbers |
|---|---|---|
| 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 |
| 7824-30-1600 | 11S-49 | 4756890 |
| 7825-30-1301 | 60117463 | 4721563 |
| 7825-30-1302 | 60117463LM | 4739125 |
| 7861-92-4130 | 60117464 | 4772106 |
| 7861-92-4131 | 60117465 | 4789321 |
| 20Y-43-41781 | YQ05.251.046 | 4801234 |
| 20Y-43-41800 | 300661-00004A | 212-7890 |
| 708-2H-25053 | 21Q6-20820 | 214-5620 |
| 708-2H-25240 | 702-21-07010 | 0419-9902 |
| 702-21-07311 | 332/G0912 | 0419-9903 |
| 702-21-07610 | 60117466 | 223-8181 |
| 702-21-57400 | YQ05.251.049 | 224-2092 |
| 585-9230 | YN20S00003F1 | 225-0300 |
| 627-2304 | 7820-30-1700 | 253-3809 |
| 585-9231 | 4791230 | 231-8194 |
| 702-21-58100 | 403-0363 | 198-6528 |
| 702-21-57500 | 485-5747 | 328-4314 |
| 702-21-60700 | 375-4414-02 | 384-3892 |
| 714-07-16730 | 485-9850-03 | 485-5747 |
| 201-0950 | 485-9850-03 | 491-0908 |
| 25/220804 | 491-0908 | 553-5204 |
| 25/220994 | 25/220804 | 25/220994 |
| 31Q6-20131 | 25/220994 | 31Q6-91220 |
| 31Q6-91220 | 31Q6-20131 | 086-1879 |
| 086-1879 | 31Q6-91220 | 31765-FC000 |
| 31765-FC000 | 086-1879 | 053400-0745 |
| 053400-0745 | 31765-FC000 | 419-15-47221 |
| 419-15-47221 | 053400-0745 | KDRDE5K-20/40C04 |
| KDRDE5K-20/40C04 | 419-15-47221 | 31Q6-91720 |
| 31Q6-91720 | KDRDE5K-20/40C04 | 25/220804 |
| 25/220804 | 31Q6-91720 | 25/974628 |
| 25/974628 | 25/220804 | 4I-5674 |
| 4I-5674 | 25/974628 | 096-5945 |
| 096-5945 | 4I-5674 | 111-9916 |
| 111-9916 | 096-5945 | 111-9100 |
| 111-9100 | 111-9916 | 56D-15-35220 |
| 56D-15-35220 | 111-9100 | DRE2K-X5-937-16 |
| DRE2K-X5-937-16 | 56D-15-35220 | 116-3526 |
| 116-3526 | DRE2K-X5-937-16 | 121-1490 |
| 121-1490 | 116-3526 | 121-1491 |
| 121-1491 | 121-1490 | 708-2H-25053 |
| 708-2H-25053 | 121-1491 | 708-2H-25240 |
| 708-2H-25240 | 708-2H-25053 | 708-2H-26913 |
| 708-2H-26913 | 708-2H-25240 | 198-4607 |
| 198-4607 | 708-2H-26913 | 195-9700 |
| 195-9700 | 198-4607 | 186-1526 |
| 186-1526 | 195-9700 | 129-1525 |
| 129-1525 | 186-1526 | 154-3685 |
| 154-3685 | 129-1525 | 154-3064 |
| 154-3064 | 154-3685 | 165-4026 |
| 165-4026 | 154-3064 | 125-4653 |
| 125-4653 | 165-4026 | 25222657 |
| 25222657 | 125-4653 | 21W-60-42130 |
| 21W-60-42130 | 25222657 | VOE600253 |
| VOE600253 | 21W-60-42130 | 708-2H-35399 |
| 708-2H-35399 | VOE600253 | 139-3990 |
| No. | Question | Standard Answer |
|---|---|---|
| Q1 | Which excavators match 24V main pump load sensing solenoid valve 139-3990 / 1393990 with black two-pin plug? | This threaded proportional solenoid fits E320B,E320C,E312B,E325B medium excavator hydraulic main pump regulator system, equipped with fully sealed black two-pin waterproof plug. |
| Q2 | What core hydraulic function does this solenoid assembly realize? | It adjusts variable pump swash plate angle according to ECU PWM signals, dynamically matches engine power and hydraulic flow to avoid engine stall under heavy excavation load. |
| Q3 | What abnormal hydraulic faults will occur if the solenoid fails? | Insufficient digging power, unstable main pump pressure, slow bucket and arm movement, intermittent power drop and continuous abnormal high hydraulic oil temperature. |
| Q4 | Is full disassembly of the hydraulic main pump required during replacement? | No, threaded cartridge installation design, only screw out the old valve and install new one into pump valve cavity, no need to split pump housing. |
| Q5 | What long-life anti-wear high-temperature resistant design? | Ion nitriding hardened alloy spool, H-grade high temperature pure copper coil, double HNBR oil-resistant sealing rings and integrated waterproof plug, stable under long-term high temperature, oily and dusty environment. |
| Q6 | Are 139-3990 and 1393990 interchangeable OEM spare part numbers? | Yes, both part numbers correspond to the same complete main pump proportional solenoid assembly and can be replaced directly without modification. |
| Q7 | How to quickly test coil integrity before installation? | Use a multimeter to measure coil resistance, normal range 14.5–15.5 ohms; infinite resistance means open circuit, resistance below 10 ohms indicates internal short circuit and cannot be installed. |
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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