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BMW 525i Emission Control Sensors
Emission control sensors for the BMW 525i span model years 1989–2010, covering oxygen sensors, mass air flow sensors, knock sensors, air/fuel ratio sensors, and throttle position 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 525i. Each listing is matched to our vehicle fitment data before it appears here.
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NGK 24322 Wideband Air/Fuel Ratio Oxygen Sensor, 5-Wire, M18x1.5
Part: 24322
Vehicle Specific
$126.01
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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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VDO Gauges 5WK9639Z Secondary Air Injection Mass Air Flow Sensor
Part: 5WK9639Z
Vehicle Specific
$98.86
In Stock (10+)
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URO 11537502525PRM Engine Cylinder Head Temperature Sensor Premium Replacement
Part: 11537502525PRM
Vehicle Specific
$49.34
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In Stock (6)
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What's here for your BMW 525i
- Oxygen Sensors — manifold, rear, and flange positions in direct-fit and universal configurations
- Mass Air Flow Sensors — OE replacement and remanufactured units
- Ignition Knock (Detonation) Sensors — direct-fit replacements
- Air / Fuel Ratio Sensors — direct-fit and OE-style units
- Throttle Position Sensors — direct-fit replacements
The widest range of emission control sensors for the BMW 525i here comes from Walker Products, DENSO, Bosch, and Standard Motor Products. Other categories BMW 525i owners shop for: BMW 525i Springs and Suspension Parts, BMW 525i Exterior Lights and BMW 525i Brake Rotors and Drums, or browse all BMW 525i parts and accessories.