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Condition: Brand New

Part Name: Control Module

Part Number: 3944125 P3944125

Reference: CM554

Instructions

1. Photos of your original control unit & Part Number

2. Photos of your machine nameplate

3. Photos of the engine nameplate

Fitment (For reference only, please check your OE number)

Suitable engine model

- Cummins QSC8.3, QSL9, QSB5.9

Truck chassis adaptation (heavy-duty truck)

- Peterbilt：330、 340, equipped with ISC/ISL engine

- Kenworth：T300、T400， Equipped with ISC/ISL engine

Programming Note

This ECU ships blank (no preloaded data).

If you need pre-programming, please contact us

Package Included

ECU Control Unit*1

Our Advantages

ECU: We offer programming services and pre-shipment testing for ECU/ECM. Please contact us if you need assistance.
Technical Support: We provide remote technical support, diagnostics, software programming, and more for your machinery.
Customer Service: We offer comprehensive services including ECU and tool support, equipment fault analysis, software installation, and more. Feel free to contact us if you encounter any issues