312-5620 Fuel Pump Solenoid Valve for CAT 320D Excavator C6.4 Engine

High-precision 312-5620 Fuel Pump Solenoid Valve for CAT 320D excavators. Compatible with Caterpillar C6.4 engines. Durable 24V DC actuator ensuring stable fuel pressure and flow.

  • Part Number: 312-5620
  • Product Name: Fuel Pump Solenoid Valve
  • Applicable Model: CAT 320D, 320D L, 323D
  • Brand: Aftermarket Replacement for CAT
  • Condition: New
  • Cross Reference: 3125620, 312-5620XD
  • MOQ: 1 PC
  • Warranty: 6 Months
Technical Specifications 312‑5620 ‑ CAT 320D Solenoid Valve

312‑5620 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 ParameterSpecification Details
Part Number312‑5620 (3125620)
ApplicationFuel Injection Pump Actuator
Operating Voltage24V DC Standard Excavator Electrical System
Engine CompatibilityCAT C6.4 ACERT Diesel Engine
MaterialHigh‑Strength Electromechanical Steel + Industrial Grade Copper Coil
Working Pressure100 – 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]

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