Cummins 4984928 Mass Air Flow Sensor

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Sensor Type	Hot Film Mass Air Flow
Housing Material	Aluminum Alloy
Sensor Element	Platinum Thin Film
Measurement Function	Intake / EGR Mass Flow Rate
Output Signal	Analog Voltage / Frequency (ECM Dependent)
Operating Temperature Range	-40°C to 125°C
Net Weight	0.35 kg
Package Dimensions	15 × 10 × 8 cm

Manufacturer No.

4984928
4954287

OEM Part No.

4984928
4954287

Engine Part No.

Cummins QSL8.9
Cummins QSC8.3
Cummins ISC8.3
Cummins ISL8.9
Cummins ISLGAS

Interchange No.

5WK97511Z
5WK97511

Fitment Vehicles

XCMG GR220 Motor Grader
XCMG XGR220

The Cummins 4984928 is a hot-film type mass air flow (MAF) sensor designed for Cummins C-series, ISC, QSC, ISL, QSL 8.3L and 8.9L diesel and natural gas engines. It provides real-time intake air mass data to the engine control module (ECM) for accurate fuel injection timing and quantity calculation, ensuring optimal combustion efficiency and emissions compliance.

Constructed with an aluminum alloy housing and a platinum thin-film sensing element, the sensor withstands high vibration, thermal cycling, and contaminated intake environments typical in heavy-duty construction machinery. It serves as a direct replacement for Cummins OE part numbers 4984928 and 4954287. Primary applications include motor graders, excavators, and wheel loaders equipped with Cummins QSL8.9 power units.