| Specification Category |
Technical Specifications |
| Compatible Applications |
JCB Equipment (Compatible with 25-220804, 25-220990, 459-M2874 applications) |
| COGENG Part Number |
CG-JCB-SV-35 |
| Replaces OEM Part Numbers |
25-220804, 25-220990, 459-M2874 |
| Product Type |
Electro-Hydraulic Solenoid Valve |
| Operating Voltage |
12V/24V DC |
| Maximum Pressure |
350 Bar (5,000 PSI) |
| Fluid Compatibility |
Mineral-based, synthetic, and bio-degradable hydraulic oils |
| Temperature Range |
-40°C to 120°C |
| Protection Rating |
IP67 Sealed Connectors |
| Quality Assurance |
100% Pressure and Performance Tested |
| Warranty |
COGENG 12-Month Warranty |
Parts list
| Item |
Part |
Description |
QTY |
| 1 |
25-220804 |
Solenoid Valve |
1 |
| 25-220990 |
Solenoid Valve |
1 |
| 459-M2874 |
Solenoid Valve |
1 |
| 2 |
25/974640 |
Kit-seal solenoid valve |
1 |
| 3 |
25/974641 |
Kit-repair coil |
1 |
| 3A |
25/221144 |
Nut coil retainer |
1 |
| 4 |
25/974642 |
Kit unloader valve assy |
1 |
These solenoid valves are integral components within JCB's sophisticated hydraulic systems. They are responsible for accurately regulating the flow and pressure of hydraulic fluid, which in turn enables the smooth, responsive, and efficient operation of crucial machine functions such as loader arm movements, excavator bucket articulation, outrigger deployment, and transmission engagement.
Key Features and Benefits of Cogeng's JCB Solenoid Valves:
Exact OEM Specification Match: Each of our JCB solenoid valves (25-220804, 25-220990, 459-M2874) is meticulously engineered to perfectly match the fit, form, and function of the original JCB parts. This guarantees a seamless, plug-and-play installation, simplifying maintenance procedures and significantly reducing costly equipment downtime.
Built for Extreme Durability: Crafted from premium, heavy-duty materials, these solenoid valves are designed to withstand the harsh and demanding operating conditions typical of construction and agricultural environments. They offer exceptional resistance to high pressures, constant vibrations, contaminants, and wide temperature fluctuations, ensuring a long and reliable service life even under the most challenging circumstances.
Precise Hydraulic Control: Our valves provide accurate and consistent control over hydraulic fluid flow. This results in improved machine responsiveness, smoother and more predictable movements, enhanced power transmission, and overall greater operational efficiency for your JCB equipment.
Rigorous Quality Assurance: Every JCB solenoid valve from Cogeng Company undergoes comprehensive multi-point quality control testing. This stringent process ensures that each valve meets the highest standards for performance, reliability, and safety before it leaves our facility, providing you with complete confidence in its operation.
Cost-Effective and Value-Driven: As high-quality aftermarket alternatives, Cogeng Company's JCB solenoid valves deliver OEM-level reliability and performance without the associated premium price tag. They represent a smart and economical investment for maintaining the peak efficiency and extending the service life of your valuable JCB machinery.
Installation decomposition diagram

General steps
- Safety preparation:
Turn off the engine → Release the hydraulic accumulator pressure → Disconnect the negative electrode of the battery
- Disassembly of old valves:
Mark the oil pipe position → Seal the interface with plug → Clean the installation surface
- Installation specifications:
| Valve Body |
Torque Value |
Sealing Requirements |
| 25-220804 |
30-35 N·m |
ORFS interface coating JCB |
| 25-220990 |
35-40 N·m |
HT sealant UNF interface uses copper gasket |
| 459-M2874 |
28-32 N·m |
BSPP interface wrap raw material belt |
Frequently Asked Questions
A. When will get the items after I place order?
Q. Once your payment is confirmed,we will arrange the goods within 1~4 days; if not in stock, we will inform you before placing the order?
A. If I only know the excavator model, but can not offer parts No.,what should I do ?
Q. If possible, you can send us pictures of old products, nameplate or the size for reference.
A. How can you guarantee the quality??
Q. We will 100% test the goods before delivery. We also support video inspection.
A. How long will it take to delivery to my address??
Q. The normal delivery time is 3-7 days, depending on which country you are in.?
A : Which delivery method will you choose?
Q : By sea, air or express(DHL,Fedex,TNT, UPS, EMS etc.),Sometimes we will arrange as the customer's demand.
A: What's package? Can you give me the package according my requirement??
Q. We usually packed by standard exported box or carton. And yes we can pack as per your requirement.
A: Can the price be cheaper?
Q: Of course, you will be offered a good discount for a big amount.
A: Why should I choose to buy from you?
Q:Our advantages: 100% quality assurance, develop and manufature follow original ones;Quick response within 24 hours; Small order allowed;Reasonable stock and timely delivery;Neutral packing, customized packing are allowed. Positive customer feedback from abroad market;Excellent after-sales service.
A : Which payment terms can you accept?
Q : Paypal. Western Union, Bank Transfer, T/T...