CUMMINS 3918461 GENUINE INTAKE AIR TEMPERATURE SENSOR (IAT) | OEM FOR 1994-1998 5.9L CUMMINS

The Cummins 3918461 Genuine Intake Air Temperature (IAT) Sensor is an OEM replacement designed to measure the temperature of the air entering your 1994-1998 Dodge Ram 5.9L Cummins diesel engine. This data allows the ECM to adjust fueling and timing for optimal performance, fuel economy, and emissions.

Features & Benefits

• OEM Accuracy: Delivers precise air temperature readings to the ECM.
• Improved Performance: Helps maintain proper combustion efficiency.
• Direct Fit: Installs easily with factory connectors and mounting.

Fitment

• 1994-1998 Dodge Ram 2500 5.9L Cummins (12-Valve & P7100 injection pump models)
• 1994-1998 Dodge Ram 3500 5.9L Cummins (12-Valve & P7100 injection pump models)
• Applicable to industrial and marine 5.9L Cummins applications (1994-1998)

Cross Reference Part Numbers

• Cummins 3918461
• Replaces: 3918330, 3921350
• Standard Motor Products AX25 (aftermarket equivalent)
• Interstate McBee M-3918461

Frequently Asked Questions

What does the IAT sensor do?

It measures the temperature of the incoming air so the ECM can adjust fueling and timing for optimum combustion.

What are signs of a bad IAT sensor?

Poor fuel mileage, reduced power, rough idle, excessive smoke, or a check engine light with intake air temp codes.

Do I need to program this sensor?

No — simply install and reconnect the electrical connector. The ECM automatically reads the sensor.

Tags

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