Guangzhou Qichao Machinery Parts Co., Ltd.
                                                                                                           
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1854254 Black Square Plug Cartridge Solenoid Valve 185-4254 For 420D

Price Negotiable
Price: Please send mail or Whatsapp
MOQ: 1 Piece
Delivery Time: Negotiable
Brand: ZVEZDA
Product Description
1854254 Black Square Plug Cartridge Solenoid Valve 185-4254 For 420D

It is the core proportional flow adjustment component of backhoe loader hydraulic system. It receives electrical control signal to switch hydraulic oil passage proportionally, adjust combined action flow of bucket and arm, realize smooth digging, lifting and loading composite operation during earthwork and pipeline construction, effectively eliminate hydraulic jitter and unsmooth arm movement.

Product Details
SpecificationDetailed Information
BrandZVEZDA
Full Product Name420D Series Medium Heavy-duty Backhoe Loader 12V Auxiliary Hydraulic Cartridge Solenoid Valve 185-4254 (1854254)
OEM Part Number185-4254 / 1854254
Compatible Machine420D,420E,424D,430D Integrated Backhoe Loader
Matched SystemMain Multi-way Valve Auxiliary Flow Control Hydraulic Circuit
Rated VoltageDC12V
Plug FeatureBlack Square 2-Pin Fully Sealed Waterproof Plug
Condition100% Brand New Aftermarket OEM Equivalent Complete Assembly
OriginGuangdong, China
Core MaterialIon Nitride Hardened Precision Multi-groove Alloy Spool + Low Loss Pure Copper Electromagnetic Coil
AccessoriesSpecial Metal Installation Clamp Included
Installation PositionBackhoe Loader Multi-way Valve Threaded Cartridge Valve Hole
Shipment Lead Time1–7 working days after payment confirmation
Outer PackagingNeutral Export Carton + Shockproof EPE Foam Inner Liner



Universal Spare Part Numbers
Series 1 PNSeries 2 PNUniversal Spare Part Numbers
20Y-43-41780331/308844520781
22U-06-22420331/308854581230
22U-06-22380331/308864601592
782-5301-301701/802844632710
782-5301-302701/802854678921
7824-30-160011S-494756890
7825-30-1301601174634721563
7825-30-130260117463LM4739125
7861-92-4130601174644772106
7861-92-4131601174654789321
20Y-43-41781YQ05.251.0464801234
20Y-43-41800300661-00004A212-7890
708-2H-2505321Q6-20820214-5620
708-2H-25240702-21-070100419-9902
702-21-07311332/G09120419-9903
702-21-0761060117466223-8181
702-21-57400YQ05.251.049224-2092
585-9230YN20S00003F1225-0300
627-23047820-30-1700253-3809
585-92314791230231-8194
702-21-58100403-0363198-6528
702-21-57500485-5747328-4314
702-21-60700375-4414-02384-3892
714-07-16730485-9850-03485-5747
201-0950485-9850-03491-0908
25/220804491-0908553-5204
25/22099425/22080425/220994
31Q6-2013125/22099431Q6-91220
31Q6-9122031Q6-20131086-1879
086-187931Q6-9122031765-FC000
31765-FC000086-1879053400-0745
053400-074531765-FC000419-15-47221
419-15-47221053400-0745KDRDE5K-20/40C04
KDRDE5K-20/40C04419-15-4722131Q6-91720
31Q6-91720KDRDE5K-20/40C0425/220804
25/22080431Q6-9172025/974628
25/97462825/2208044I-5674
4I-567425/974628096-5945
096-59454I-5674111-9916
111-9916096-5945111-9100
111-9100111-991656D-15-35220
56D-15-35220111-9100DRE2K-X5-937-16
DRE2K-X5-937-1656D-15-35220116-3526
116-3526DRE2K-X5-937-16121-1490
121-1490116-3526121-1491
121-1491121-1490708-2H-25053
708-2H-25053121-1491708-2H-25240
708-2H-25240708-2H-25053198-4607
198-4607708-2H-25240195-9700
195-9700198-4607186-1526
186-1526195-9700129-1525
129-1525186-1526185-4254
Frequently Asked Questions
No.QuestionStandard Answer
Q1Which backhoe loaders match 12V cartridge solenoid valve 185-4254 1854254 with black square plug?This threaded cartridge auxiliary flow control solenoid fits 420D,420E,424D,430D integrated backhoe loader multi-way hydraulic valve system.
Q2What hydraulic function does this solenoid valve control?It proportionally adjusts auxiliary hydraulic flow, steplessly controls bucket and arm composite movement speed to realize smooth digging and loading operation.
Q3What abnormal hydraulic faults will occur when this solenoid fails?Slow combined movement of bucket and arm, unstable hydraulic pressure, obvious hydraulic jitter during excavation, and continuous abnormal high hydraulic oil temperature.
Q4Is full disassembly of the multi-way valve block required during replacement?No, standard threaded cartridge structure, only screw out the old valve core and install the new one, equipped with matching metal clamp for fixed installation, no need to split the main valve housing.
Q5What anti-wear and high-temperature resistant design prolong service life?The whole spool adopts ion nitriding hardening treatment, matched double high temperature HNBR oil-resistant sealing rings and fully sealed square two-pin waterproof plug to resist long-term muddy environment and vibration.
Q6Are 185-4254 and 1854254 interchangeable spare part numbers?Yes, the two codes correspond to the same complete cartridge solenoid assembly and can be replaced mutually.
Q7How to quickly test coil integrity before installation?Use a multimeter to measure coil resistance, normal range 13.5–14.2 ohms; infinite resistance represents open circuit, resistance below 10 ohms indicates internal short circuit and cannot be installed.


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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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