Technical Specifications 312‑5620 ‑ CAT 320D Solenoid Valve312‑5620 Solenoid Valve — Fuel Injection Pump Actuator
The 312‑5620 Solenoid Valve is a critical electronic control component for the fuel injection pump system of Caterpillar 320D‑series excavators. Exclusively designed for the CAT C6.4 ACERT engine, this high‑precision actuator accurately regulates fuel flow and pressure, ensuring stable combustion, smooth engine operation and optimal power output.
1. Technical Specifications
| Technical Parameter | Specification Details |
|---|
| Part Number | 312‑5620 (3125620) |
| Application | Fuel Injection Pump Actuator |
| Operating Voltage | 24V DC Standard Excavator Electrical System |
| Engine Compatibility | CAT C6.4 ACERT Diesel Engine |
| Material | High‑Strength Electromechanical Steel + Industrial Grade Copper Coil |
| Working Pressure | 100 – 200 MPa High‑Pressure Fuel System |
2. Machine Compatibility
This solenoid valve is widely used in the following Caterpillar 20‑ton‑class excavators:
320D Series: 320D, 320D L, 320D GC
Special Models: 321D LCR (Reduced Tail Swing)
323D Series: 323D, 323D L
3. Key Features & Advantages
Direct OEM Replacement: Manufactured to original CAT dimensions and electrical parameters for perfect fitment and full system compatibility.
Fast & Stable Response: Low‑delay electromagnetic control ensures real‑time fuel adjustment under variable working loads for smoother engine performance.
Excellent Thermal Resistance: Designed to endure high engine‑bay temperatures, preventing coil burnout and maintaining reliable signal transmission.
Improved Fuel Efficiency: Precise fuel regulation stabilizes common‑rail pressure, reducing exhaust emissions and optimizing fuel consumption.
Maintenance Note
To extend the service life of the 312‑5620 solenoid valve, use clean diesel fuel and replace fuel filters regularly to avoid internal contamination and blockage.
For commercial inquiries, bulk orders, or technical support:
Xuzhou Sinoswift Import & Export Co., Ltd.
Contact: +86 13701956981
Email: [email protected]