Cummins 4076493 Environmental Air Pressure Sensor Assembly (Compatible with 2897331/3331044/5WK9684) for ISX ISM QSX L10 M11 Engines
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| Part Number | 4076493 |
| Replacement Code | 2897331, 2897331NX, 3331044 (including harness assembly), 5WK9684 (Bosch/Continental OEM number), 4928594, 5698453 |
| Sensor Type | Barometric/Ambient Air Pressure Sensor |
| Measurement Medium | Air |
| Pressure Type | Absolute pressure |
| Measurement Range | 15 - 115 kPa (typical atmospheric pressure range) |
| Power Voltage | 5 VDC (from ECU) |
| Output Signal | 0.5 - 4.5 VDC (Analog Voltage Signal, Linearly Corresponding to Pressure) |
| Interface Type | 3-pin rectangular plug (male/sheet type, rounded rectangular) |
| Installation Thread | M12 x 1.5 (or clip fixed, depending on specific application) |
| Operating Temperature | -40°C to +130°C |
| Protection Rating | IP67 / IP69K |
| Material | High-strength engineering plastic (PBT-GF30), pressure interfaces in stainless steel/copper |
| Weight | Approx. 0.1 kg (0.2 lbs) |
| Applicable ECM | CM570, CM870, CM2150, CM2250, CM2350 |
| Technical Service Announcement | TSB 07T19-129 |
| Function | Monitors atmospheric pressure, providing baseline data for ECU to correct fuel injection amount, turbocharger pressure, and EGR flow |
Manufacturer No.
5WK9684A2C84260100A2C86289900M-4076493P050653DP4076493577.90531
OEM Part No.
407649328973312897331NX333104449285945698453W091098045021005
Engine Part No.
Cummins ISXCummins ISMCummins QSX15Cummins QSM11Cummins L10Cummins M11Cummins N14Cummins ISF2.8Cummins ISF3.8Cummins QSFCummins ISBCummins QSBCummins B6.7Cummins ISDECummins X15
Interchange No.
BWP S1005Automann 577.90531Dayton 9047128FortproPAI 050653ATP 2897331Interstate-McBee M-4076493
Fitment Vehicles
Dongfeng Cummins ISF2.8/3.8SINOTRUK HOWODongfeng Cummins ISDECummins ISX/ISM/QSX Heavy Duty TrucksConstruction Machinery Excavator PC200-8 (equipped with ISM/QSM)Cummins N14 Series Engine Equipment
Fuel System - Industrial Encyclopedia
Supplying Cummins OEM 4076493 Environmental Air Pressure Sensor (compatible with 2897331, 3331044 assemblies, 5WK9684), suitable for ISX, ISM, QSX15, L10, M11, N14 heavy-duty diesel engines. The sensor uses piezoresistive technology to accurately monitor atmospheric pressure, optimize air-fuel ratio and turbocharger control, withstand high temperature and vibration, meet OEM specifications, and support 12-24 months warranty.