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BMW X3 Emission Control Sensors
This page brings together emission control sensors for the BMW X3, covering model years 2004–2024. The range spans oxygen sensors, mass air flow sensors, knock sensors, MAP sensors, and air/fuel ratio sensors in direct-fit and OE replacement styles. Choose your model year above and this page keeps only the emission control sensors that fit your BMW X3. Each listing is matched to our vehicle fitment data before it appears here.
31 - 49 of 49 results
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NGK 25658 NTK Oxygen Sensor O2 Sensor 4-Wire Heated 18mm Thread
Part: 25658
Vehicle Specific
$103.70
3 left at this price
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NGK 24332 NTK OE Type 5-Wire Wideband Air/Fuel Ratio Oxygen Sensor
Part: 24332
Vehicle Specific
$164.18
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NGK 24333 Wideband Oxygen Sensor 5-Wire Air/Fuel Ratio Sensor M18x1.5
Part: 24333
Vehicle Specific
$98.38
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NGK 24322 Wideband Air/Fuel Ratio Oxygen Sensor, 5-Wire, M18x1.5
Part: 24322
Vehicle Specific
$126.01
1 left at this price
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VDO Gauges 5WK9639Z Secondary Air Injection Mass Air Flow Sensor
Part: 5WK9639Z
Vehicle Specific
$98.86
In Stock (10+)
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4 left at this price
What's here for your BMW X3
- Oxygen Sensors — direct-fit and universal OE replacement options
- Mass Air Flow Sensors — remanufactured and new units
- Ignition Knock (Detonation) Sensors — manifold-mounted replacement pieces
- Manifold Absolute Pressure (MAP) Sensors — direct-fit and universal styles
- Air / Fuel Ratio Sensors — OE replacement fitments
The widest selection here comes from Walker Products, Bosch, Delphi, and Spectra. Other categories BMW X3 owners shop for: BMW X3 Tires, BMW X3 Brake Service Kits and BMW X3 Brake Pads and Shoes, or browse all BMW X3 parts and accessories.