25220994 25/220994 Solenoid Valve Cartridge Without Coil For 3CX 4CX Backhoe Loader
Price:
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MOQ:
1 Piece
Delivery Time:
Negotiable
Brand:
ZVEZDA
Product Description
25220994 25/220994 Solenoid Valve Cartridge Without Coil For 3CX 4CX Backhoe Loader
It is the core flow and pressure control mechanical component of the transmission proportional solenoid assembly. Driven by the magnetic force of the matching coil, the precision spool slides axially to change the opening area of the oil passage, steplessly adjust transmission control oil pressure and realize smooth forward, reverse and speed gear shifting.
Product Details
| Specification | Detailed Information |
|---|---|
| Full Product Name | JCB 3CX 4CX Backhoe Loader Powershift Gearbox Cartridge Valve Core (Without Coil) 25/220994 |
| OEM OE Number | 25/220994 / 25220994 |
| Compatible Machine | JCB 3CX, JCB 4CX Powershift Backhoe Loader (Serial No.0930000-0959999, 2002-2005) |
| Condition | 100% Brand New Pure Mechanical Cartridge Core, No Coil & Plug |
| Origin | Guangdong, China |
| Core Material | Integral Nitride Hardened Alloy Steel Spool + Integral Alloy Valve Sleeve |
| Matching Accessory | Original 24V transmission solenoid coil (sold separately) |
| Installation Position | Backhoe Loader Gearbox Cartridge Valve Hole (Inner Mechanical Core) |
| Shipment Lead Time | Dispatched within 1–7 working days after payment confirmation |
| Outer Packaging | Neutral Export Carton + Shockproof EPE Foam Inner Liner |
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| 7823-30-1400 | LQ50S00001P1 | 134-0649 |
| 7826-30-1100 | LQ50S00001P2 | 144-6670 |
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| 20Y-43-41790 | 256-7891 | 191-6527 |
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| 201-0950 | 485-9850-03 | 491-0908 |
| 25/220804 | 491-0908 | 553-5204 |
| 25/220994 | 25/220804 | 25/220994 |
Frequently Asked Questions
| No. | Question | Standard Answer |
|---|---|---|
| Q1 | Which backhoe loader matches coil-free transmission cartridge core 25/220994? | This threaded mechanical cartridge valve core without coil is specially manufactured for JCB 3CX and 4CX powershift backhoe loader gearbox, serial machine range 0930000-0959999 produced 2002-2005. |
| Q2 | What working principle of this coil-free cartridge core in transmission system? | It relies on the magnetic suction of the matching external coil to push the spool to slide, adjust the flow area of the oil passage, change the pilot pressure output of the gearbox, and realize automatic gear shifting of forward, reverse and speed gears. |
| Q3 | What abnormal gearbox faults are caused by wear of this cartridge core? | Gear shift jitter, slow gear engagement, slipping under heavy load, unstable driving speed, delayed handle response and continuous abnormal high hydraulic oil temperature. |
| Q4 | Do I need to replace the coil together when replacing this cartridge core? | No, this product only includes mechanical spool and sleeve without coil; if the original coil is intact, only replace the internal valve core to save repair cost, no need to replace the whole solenoid assembly. |
| Q5 | What wear-resistant process ensures long service life under high pressure oil? | The whole spool adopts ion nitriding hardening process, precise mirror grinding, double high temperature resistant sealing rings, low friction matching clearance, effectively resist long-term hydraulic oil erosion and reciprocating sliding wear. |
| Q6 | How to confirm whether the valve core is damaged before installation? | Take out the old core and observe the surface for scratches, strain and sealing ring aging; push the spool by hand, if it is stuck or loose, it means the valve core needs to be replaced. |
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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