Guangzhou Qichao Machinery Parts Co., Ltd.
                                                                                                           
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0861879 Proportional Solenoid Coil For E320B PC200-8 Excavator Main Pump Valve

Price Negotiable
Price: Please send mail or Whatsapp
MOQ: 1 Piece
Delivery Time: Negotiable
Brand: ZVEZDA
Product Description
0861879 086-1879 Solenoid Coil For E320B Excavator Main Pump Proportional Valve

Integral galvanized anti-rust metal shell, high-purity low-drift pure copper enameled wire winding, multi-layer high-temperature insulating paper encapsulation, built-in heat dissipation structure, original green two-pin fully sealed waterproof plug, stable magnetic output without overheating under long-time continuous high-vibration mine working conditions.

Product Details
Item Attribute Technical Parameter
Commercial Title Galvanized Shell LS Load Sensing Proportional Solenoid Coil For CAT B-series Excavator Main Pump Valve
Cross Reference PN 0861879 (Short Code:086-1879)
Applicable System Excavator Variable Pump Stepless LS Load Matching Hydraulic Control Circuit
Quality Grade High Temp Anti-vibration Oil Mist Resistant Heavy-duty Replacement Standard
Production Base Guangdong, China
Product Category CAT Excavator Hydraulic Pump Electrical Coil Spare Parts
Electrical Spec Coil Resistance 13.2Ω, Rated Control Current 685mA
Max Continuous Working Temp Up to 135℃, No coil burnout & magnetic attenuation
Order Processing Cycle Normally 1–7 working days once payment received
Custom Service Custom Logo & Custom Export Carton Available For Bulk Orders
MOQ Support 1 Piece Sample Acceptable For On-site Machine Compatibility Test




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
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-43-41782 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
708-2H-25240 21Q6-20820 214-5620
702-21-07010 K1013849 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 086-1879
No. Question Standard Answer
Q1 Which excavators fit main pump proportional coil 086-1879? This galvanized LS proportional solenoid coil is specially manufactured for E320B, also compatible with E110B, E120B, E200B, EL200B B-series hydraulic excavator main pump regulator valve.
Q2 What power matching function does this coil realize for main pump? It generates proportional magnetic force according to ECU signal to push valve spool, adjust pump displacement in real time based on excavation load, balance engine load and reduce fuel consumption during long-hour heavy work.
Q3 What machine failures will be caused if this coil burns out? Severe power loss under heavy digging, frequent engine stall, unstable pump pressure, slow boom & bucket movement, fluctuating idle speed and continuous high hydraulic oil temperature.
Q4 Do I need to remove the whole hydraulic main pump to replace this coil? No, just pull out the old coil sleeve from the valve core directly, install the new coil and plug the green connector, pump disassembly is not required, maintenance efficiency is greatly improved.
Q5 What anti-aging sealed design adapts to harsh pump cabin environment? Multi-layer high temperature insulation paper + epoxy full sealing, galvanized anti-rust outer shell, fully sealed green two-pin waterproof plug, resist long-term hydraulic oil mist, high temperature and vibration erosion.
Q6 How to quickly judge coil damage before installation? Use multimeter to measure coil resistance, normal range 12–14 ohms; infinite resistance means open circuit, resistance below 9 ohms indicates internal short circuit and cannot be installed.

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Have questions about our products or want to discuss a custom order? Our team is ready to help you.

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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