Reliable power management for your excavator hydraulic system. Get the 4I-5674 (also known as 4I5674) solenoid valve for immediate dispatch.
Follow Our Engineering Updates on Facebook| Attribute | Specification Details |
|---|---|
| Model NO. | 320B, 312B, 315B, 317B, 318B, 320B L, 320B N, 322B |
| Product Name | Hydraulic Pump Solenoid Valve |
| Part Number | 4I-5674 / 4I5674 |
| Type | Hydraulic System Control Valve |
| Condition | Brand New, OEM Standard Replacement |
| Payment Terms | T/T, Western Union, MoneyGram |
| Delivery Methods | Express: DHL Fedex EMS UPS or by Air/ Sea |
| MOQ | 1 Piece |
| Stock Status | In Stock / Fast Dispatch |
| Packaging | Industrial Export Packing |
| Application | Engine rebuild, overhaul, maintenance, hydraulic pump repair |
The 4I-5674 solenoid valve is the heartbeat of the hydraulic pump control system in CAT 320B series excavators. When this valve fails, you experience power loss, erratic boom movement, or complete pump pressure drops. Our OEM-standard replacements ensure your machine returns to peak efficiency without the premium price tag of a dealership part.
| Core Selection Factors | Standard Market Parts | Our 4I-5674 Replacement |
|---|---|---|
| 1. Material Integrity | Low-grade coil winding | High-temperature resistant copper coil |
| 2. Response Time | Delayed actuation | Instant signal response (Millisecond level) |
| 3. Durability | Leaks after 500 hours | OEM-standard tri-metal structure for 2000+ hours |
| 4. Fitment | Requires modification | 100 percent Bolt-on compatible with 320B series |
| 5. Safety Protection | None | Built-in surge protection for ECU safety |
| 6. Cost Efficiency | High downtime risk | Trusted by repair shops & equipment fleets worldwide |
Our team helps operators achieve maximum uptime:
Identify potential risks during maintenance to avoid catastrophic pump failure.
Recommend suitable replacement parts if needed based on machine serial numbers.
Support both inspection advice and parts supply for global construction projects.
Don't let a small solenoid stall your multi-million dollar project.
A: A common culprit is the 4I-5674 solenoid valve. Over time, internal coils can burn out or the spool can stick. Replacing the 4I5674 valve usually restores pressure regulation immediately without needing a full pump overhaul.
A: Use a multimeter to check the resistance across the terminals. If it shows an open circuit or excessive resistance, the coil is damaged. Also, check for 24V supply from the controller when the pump should be active.
A: Our version features an OEM-standard tri-metal structure. It is Trusted by repair shops & equipment fleets because it withstands the high-pressure vibrations typical of heavy-duty excavation work.
We specialize in heavy-duty engine and hydraulic components. Whether you are performing a Caterpillar engine rebuild or a Komatsu hydraulic overhaul, we provide the precision parts required. Our warehouse maintains a deep stock of Cummins diesel pump parts, Isuzu injector nozzles, and Yanmar overhaul kits for fast international delivery.
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