1850008 Main Pump Proportional Solenoid Valve 185-0008 For 320D
Product Details
| OE Part Number:: | 185-0008 | Application: | Hydraulic Brake Circuit Control |
|---|---|---|---|
| Compatible Equipment: | 320C,320D,325C Excavator;120H,140H | Warranty: | 6 Months |
| MOQ Support: | 1 Piece Sample Acceptable For On-site Machine Matching Test | ||
| Highlight |
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Product Description
Integrated cylindrical valve body structure, whole spool precision grinding with ion nitriding anti-wear hardening treatment, high-purity low-loss pure copper integral winding H-grade high temperature resistant enameled coil, black single-pin fully sealed waterproof plug, solid galvanized anti-rust valve shell with built-in smooth multi-layer flow channels, stable pressure response without jitter under long-term high-pressure, dusty open mine construction conditions.
| Specification | Detailed Information |
|---|---|
| Brand | ZVEZDA |
| Full Product Name | 320D Excavator & 120H/140H/160H Motor Grader 24V Hydraulic Main Pump Load Sensing Proportional Solenoid Valve 185-0008 (1850008) |
| OEM Part Number | 185-0008 / 1850008 |
| Compatible Machine | 320D Medium Excavator; 120H,140H,160H Series Motor Grader |
| Matched System | Variable Displacement Hydraulic Main Pump Regulator Load Sensing Control Circuit |
| Rated Voltage | DC24V |
| Plug Feature | Black Single-Pin Fully Sealed Waterproof Plug |
| Condition | 100% Brand New Aftermarket OEM Equivalent Complete Assembly |
| Origin | Guangdong, China |
| Core Material | Ion Nitride Hardened Precision Multi-groove Alloy Spool + Low-loss Pure Copper Electromagnetic Coil |
| Installation Position | Excavator/Motor Grader Hydraulic Main Pump Valve Cavity |
| 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 | 198-4607 |
| 198-4607 | 708-2H-25240 | 195-9700 |
| 195-9700 | 198-4607 | 186-1526 |
| 186-1526 | 195-9700 | 129-1525 |
| 129-1525 | 186-1526 | 185-4254 |
| 185-4254 | 129-1525 | 185-0008 |
| No. | Question | Standard Answer |
|---|---|---|
| Q1 | Which construction machinery match 24V main pump solenoid valve 185-0008 1850008? | This cylindrical load sensing proportional solenoid fits 320D medium excavator and 120H/140H/160H motor grader hydraulic main pump regulator system. |
| Q2 | What core hydraulic function does this solenoid undertake? | It proportionally adjusts the swash plate angle of variable hydraulic pump, dynamically matches engine output power and hydraulic flow to avoid engine stall during heavy-load operation. |
| Q3 | What abnormal hydraulic faults will occur when this solenoid fails? | Insufficient digging/leveling power, unstable hydraulic pump pressure, obvious hydraulic jitter during composite action, and continuous abnormal high hydraulic oil temperature. |
| Q4 | Is full disassembly of the hydraulic main pump required during replacement? | No, integrated sleeve installation design, only remove the old solenoid and sleeve the new one on the pump valve cavity, no need to split the pump housing. |
| Q5 | What long-life anti-wear high-temperature resistant design? | The whole spool adopts ion nitriding hardening treatment, matched double HNBR oil-resistant high temperature sealing rings and fully sealed single-pin waterproof plug to resist long-term oil mist, dust and vibration. |
| Q6 | Are 185-0008 and 1850008 interchangeable spare part numbers? | Yes, the two codes correspond to the same complete main pump proportional solenoid assembly and can be replaced mutually. |
| Q7 | How to quickly test coil integrity before installation? | Use a multimeter to measure coil resistance, normal range 14–14.8 ohms; infinite resistance represents open circuit, resistance below 10 ohms indicates internal short circuit and cannot be installed. |
Product Highlights
1850008 Main Pump Proportional Solenoid Valve 185-0008 For 320D Integrated cylindrical valve body structure, whole spool precision grinding with ion nitriding anti-wear hardening treatment, high-purity low-loss pure copper integral winding H-grade high temperature resistant enameled coil, black ...
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