Cummins 3937299 Engine Electronic Control Module ECM ECU CM556 Gas Version
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| Part Number | 3937299 |
| Controller Platform | CM556 |
| Compatible Fuel Type | Natural Gas (CNG) / Liquefied Natural Gas (LNG) |
| Displacement | 5.9L / 8.3L |
| Compatible Engine Series | B5.9G, C Gas Plus, B Gas Plus |
| Voltage | 24V DC |
| Communication Protocol | J1939 / J1708 / ISO 15765 (CAN) |
| Protection Rating | IP67 (Shell Sealing) |
| Operating Temperature | -40°C to +85°C |
| Core Function | Gas Injection Control, Ignition Timing Control, Air/Fuel Ratio Closed Loop Control, Engine Protection Strategy, Fault Diagnosis (DTC) |
| Programming Requirements | Calibration Matching Required Using Cummins INSITE Software |
| Weight | Approx. 3.5 kg |
| Warranty Policy | Original equipment warranty / Refurbished parts typically 60 days - 1 year |
Manufacturer No.
3937299P3937299
OEM Part No.
3937299396595339388463965953NX706311AT6A01003997
Engine Part No.
Cummins B5.9GCummins C Gas PlusCummins B Gas PlusCummins ISB 5.9 GasCummins QSB 5.9 GasCummins 5.9L CNGCummins 8.3L CNG
Interchange No.
396595339388463965953NX706311AT3977986P3937299
Fitment Vehicles
Dongfeng Tianlong/Tianjin Gasoline VersionSINOTRUK Howo/Shandong Kinglong Gasoline VersionFoton Auman Gasoline VersionJiefang J6/J7 Gasoline VersionYutong/Jinlong/Ankai Gasoline BusConstruction Machinery Equipped with Cummins Gasoline Power Equipment
Engine System - Industrial Encyclopedia
Supplying Cummins OEM 3937299 Electronic Control Module (ECM/ECU), designed on the CM556 platform, specifically for 5.9L (B5.9G) and 8.3L (C Gas Plus) natural gas/LNG engines. Interchangeable numbers include 3965953, 3938846, 3965953NX, 706311AT, etc., compatible with Dongfeng, heavy trucks and other commercial vehicles and construction machinery equipped with Cummins gas engines, supporting calibration programming, reliable quality.