3317539 ECU Controller 331-7539 28170119 Excavator Engine Control Unit ECM for Caterpillar E320D E312D E323D C4.2 C4.4 C6.4 C6.6 With Program

The 3317539 / 331-7539 ECU Controller is a high-performance Engine Control Module designed for Caterpillar excavators and engine systems. It ensures precise engine management, stable operation, and optimized fuel efficiency.

This ECM is fully tested and programmed, providing a direct replacement for your original faulty unit.

This ECU is suitable for the following Caterpillar machines:

• E320D
• E312D
• E323D

• C4.2
• C4.4
• C6.4
• C6.6

• 3317539
• 331-7539
• 28170119

• ✔ Fully programmed ECU ready to install
• ✔ OEM standard replacement part
• ✔ High precision engine control
• ✔ Stable performance under heavy-duty conditions
• ✔ Fuel injection optimization for better efficiency
• ✔ 100% tested before shipment
• ✔ Plug & play installation (professional recommended)

This ECU controls and manages critical engine functions including:

• Fuel injection timing
• Air-fuel ratio regulation
• Engine protection system
• Sensor signal processing
• Emission control optimization

• Condition: New / Remanufactured (optional depending on your stock)
• Programming: Included
• Testing: 100% Fully Tested

• Fast worldwide shipping
• Secure packaging
• Professional technical support
• After-sales assistance available

Please confirm your part number before purchase. If you are unsure, please contact us for verification.

JISION provides reliable heavy machinery electronic parts with stable performance, strict testing standards, and long service life for global construction equipment markets.