Cummins engine sensor 3331044 Series are multi-function pressure and temperature sensors for Cummins ISX, QSX, ISM and M11 diesel engines. These sensors monitor oil pressure, fuel pressure, coolant temperature and other working parameters, send real-time signals to ECU for engine protection and fuel control, widely used in heavy trucks, construction machinery, generator sets and marine engines.

Part numbers in this series:
3331044, 4921473, 4921475, 4954905, 4921499, 4921495

Fits: Cummins ISX, QSX, ISM, M11 Diesel Engine
Position: Engine monitoring sensor system

What you are ordering
Price is per sensor. All part numbers are separate variants, please select the correct PN from variant options. These sensors are not interchangeable, different part numbers correspond to different measuring range and plug type. Wrong selection will trigger fault code and cause engine derating.

Specifications
Type: Pressure / Temperature Combined Sensor
Material: Brass housing + electronic circuit board
Signal: Analog signal for ECU
Package: Neutral packing

When to replace
Replace the sensor when dashboard fault alarm, incorrect pressure/temperature reading, engine power derating, or circuit open/short circuit failure.

Fitting notes
Strictly confirm part number and plug style before ordering. Thread sealant is recommended during installation. Follow Cummins service manual for wiring and fault clearing. If you are not sure which sensor matches your engine, send us engine serial number for confirmation.

Warranty and shipping
Covered by a 12-month warranty against manufacturing defects. Orders are dispatched within 3–7 business days; DHL / FedEx delivery takes 5–10 business days. Tracking number is sent as soon as the parcel leaves our warehouse.

Note: manufacturer names and part numbers are used for identification and cross-referencing only. We are an independent aftermarket supplier and are not affiliated with, or authorised by, the original manufacturer. Please verify the part number against your engine's parts catalogue before ordering — our team is happy to help if you send us your engine model or serial number.