Guangzhou Qichao Machinery Parts Co., Ltd.
| Compatible Equipment | 120H,135H,140H,143H,160H,120K,140K,160K |
| Application | Motor Grader Hydraulic Working Circuit Control |
| Order Processing Cycle | Normally 1–7 working days once payment received |
| Supply Ability | 1000PCS/MONTH |
| Payment Terms | T/T |
| MOQ Support | 1 Piece Sample Acceptable For On-site Machine Matching Test |
| Packaging Details | Neutral Packing/Branded Packaging |
| OE Part Number: | 174-4909 |
| Warranty | 6 Months |
| Place of Origin | China |
| Model Number | 140H |
| Brand Name | ZVEZDA |
View Detail Information
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Product Specification
| Compatible Equipment | 120H,135H,140H,143H,160H,120K,140K,160K | Application | Motor Grader Hydraulic Working Circuit Control |
| Order Processing Cycle | Normally 1–7 working days once payment received | Supply Ability | 1000PCS/MONTH |
| Payment Terms | T/T | MOQ Support | 1 Piece Sample Acceptable For On-site Machine Matching Test |
| Packaging Details | Neutral Packing/Branded Packaging | OE Part Number: | 174-4909 |
| Warranty | 6 Months | Place of Origin | China |
| Model Number | 140H | Brand Name | ZVEZDA |
| High Light | hydraulic cartridge solenoid valve assembly ，cartridge hydraulic solenoid valve ，assembly hydraulic solenoid valve | ||
Compact threaded cartridge integrated 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 square integrated injection molding waterproof plug, solid galvanized anti-rust valve body with built-in smooth multi-layer flow channels, stable reciprocating switching action without jamming under long-term heavy-load, dusty open road construction site conditions.
| Specification | Detailed Information |
|---|---|
| Brand | ZVEZDA |
| Full Product Name | 140H/120H/135H/160H Series Heavy Motor Grader 24V Gearbox Shift Cartridge Solenoid Valve 174-4909 (1744909) |
| OEM Part Number | 174-4909 / 1744909 |
| Compatible Machine | 140H,120H,135H,160H Heavy-duty Motor Grader |
| Matched System | Gearbox Hydraulic Clutch Shift Control Hydraulic Circuit |
| Rated Voltage | DC24V |
| Wire & Plug Feature | Black Square 2-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 | Motor Grader Gearbox 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 | 185-4254 |
| 185-4254 | 129-1525 | 185-0008 |
| 185-0008 | 185-4254 | 174-4909 |
| No. | Question | Standard Answer |
|---|---|---|
| Q1 | Which motor graders match 24V gear shift cartridge solenoid valve 174-4909 1744909 with black square plug? | This threaded cartridge transmission shift solenoid fits 140H,120H,135H,160H heavy motor grader gearbox hydraulic system, distinguished by exclusive black square waterproof plug design. |
| Q2 | What core hydraulic function does this solenoid assembly undertake? | It proportionally adjusts gearbox clutch hydraulic pressure, realizes stepless smooth gear shifting to eliminate shift shock during road leveling and heavy traction operation. |
| Q3 | What abnormal transmission faults are caused by damaged solenoid? | Severe impact during gear shifting, gear slipping under heavy traction load, insufficient driving power, intermittent gear disengagement and continuous abnormal high hydraulic oil temperature. |
| Q4 | Is full disassembly of the gearbox required during replacement? | No, standard threaded cartridge structure, only screw out the old valve core and install the new one, no need to split the transmission housing. |
| Q5 | What long-service 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 two-pin waterproof plug to resist long-term muddy, dusty construction environment. |
| Q6 | Are 174-4909 and 1744909 interchangeable OEM spare part numbers? | Yes, the two codes correspond to the same complete gearbox shift solenoid valve assembly and can be directly replaced mutually. |
| 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 represents 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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