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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.
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DENSO 234-4201 Universal Heated Oxygen Sensor 4-Wire 11.77" Lead
Part: 234-4201
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$84.98
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NGK 25613 Oxygen Sensor, 4-Wire Heated Narrow Band O2 Sensor, 18mm
Part: 25613
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$91.68
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NGK 24315 NTK Wideband Air Fuel Ratio Oxygen Sensor 5-Wire O2 Sensor
Part: 24315
Vehicle Specific
$157.70
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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.