Walker Products 245-1261 mass air flow sensor for the 2002-2003 BMW 745i V8 4.4L and other vehicles measures the air entering the engine for the ECU. The ECU uses that reading to help set the air-fuel ratio.
- Walker Premium mass air flow sensor line
- Custom-tuned flow characteristics across the full flow spectrum
- Calibration goes through 100% production testing and on-vehicle verification
- Custom engineered circuit boards, programmed and tested before sale
Quick facts
- Part: Walker Products 245-1261 mass air flow sensor
- Fits: 2002-2003 BMW 745i V8 4.4L and other vehicles
- Condition: New
A worn mass air flow sensor can show up as rough idle, hesitation or poor fuel economy. Before you replace it, rule out an intake leak, a clogged air filter and a fault code that points to another part; any of them can also make an engine run rough.
Fits
This mass air flow sensor is a direct-fit replacement for the 2002-2003 BMW 745i V8 4.4L and the 2002-2003 BMW 745Li V8 4.4L.
Specifications
Fit and size
- Quantity per vehicle: 1
- Terminal quantity: 5
- Connector gender: Female
Build and materials
- Type: sensor assembly
- Mounting hardware: included
- Condition: New
- Country of origin: China
In the box
One mass air flow sensor with mounting hardware; the housing is not included. The engine takes a single sensor.
Installation notes
- Some vehicle manufacturers recommend replacing the complete housing assembly to keep the connector air tubes clean.
- Oils from your hands, and even air pollution, can damage the sensor, so handle it with care.
Interchange: 74-10166 · 64-1793 · 917-1117
5S2957 · 13627501554 · 7501554 · 0280218077 · MAS0431 · 19720 · SU6449
Product information is for general reference and may contain errors. See our Disclaimer.
This part cross-references / interchanges with the following part numbers:
5S2957, 13627501554, 7501554, 0280218077, 74-10166, 64-1793, 641793, 917-1117, MAS0431, 19720, SU6449
Frequently Asked Questions
Is there a mass air flow sensor for the 2002-2003 BMW 745Li V8 4.4L?
Yes. Walker Products 245-1261 is listed for the 2002-2003 BMW 745Li V8 4.4L, and it also fits the 2002-2003 BMW 745i V8 4.4L.
Does the Walker Products mass air flow sensor come with its housing?
No. Walker Products 245-1261 comes with mounting hardware but not the housing.
How many terminals does this mass air flow sensor connector have?
The connector on this mass air flow sensor is female and has 5 terminals.
Can a failing mass air flow sensor cause rough idle or poor fuel economy?
It can. The ECU uses the sensor's air reading to help set the air-fuel ratio, so a bad reading may show up as rough idle, hesitation or poor fuel economy.
Can hand oils damage a mass air flow sensor during installation?
Yes. Oils from your hands, and even air pollution, can damage the sensor, so handle Walker Products 245-1261 with care until it is installed.
