NTK 25740 Oxygen Sensor - Downstream
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NTK
 Direct Fit Oxygen Sensor

NTK 25740 Oxygen Sensor - Downstream

Brand NTK 25740
Position Downstream
Wiring Harness Length 25.5000
Sensor Type Heated
Universal Or Specific Fit Specific
Wire Quantity 4
Thread Diameter 18.000
Mounting Type Threaded
Product line Direct Fit Oxygen Sensor
Fits BMW · 75 vehicles

Direct fit design. Specific replacement for streamlined installation and OE-style application matching.

Heated sensor. Built for faster operating response and stable exhaust feedback.

OE-spec testing. Extensively tested during manufacturing to meet or exceed original equipment standards.

Cross-references Bosch 16233, Bosch 16239 and Carlson 16220 for the same application. See all 9.

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Direct Fit Oxygen Sensor for BMW Applications

NTK 25740 is a direct fit heated oxygen sensor built for specific BMW downstream applications. It uses a threaded mounting design and a 4-wire configuration to match the original equipment style connection and signal setup.

  • Heated oxygen sensor for faster operating response.
  • Specific fit design for direct replacement use.
  • Threaded mounting type for secure installation.
  • 25.5-inch wiring harness length for application-specific routing.
  • 18 mm thread diameter for OE-style fitment.

Fitment and Application Details

Compatible with downstream BMW applications including Fits 2012-2018 BMW 320i, downstream; Fits 2013-2018 BMW 320i xDrive, downstream; Fits 2015-2018 BMW X4, downstream; Fits 2016-2018 BMW X5, downstream; Fits 2013-2017 BMW X3, downstream; Fits 2014-2016 BMW 228i, downstream; Fits 2015-2016 BMW 228i xDrive, downstream; Fits 2012-2016 BMW 328i, downstream; Fits 2014-2016 BMW 328i GT xDrive, downstream; Fits 2013-2016 BMW 328i xDrive, downstream; Fits 2014-2016 BMW 428i, downstream; Fits 2015-2016 BMW 428i Gran Coupe, downstream; Fits 2014-2016 BMW 428i xDrive, downstream; Fits 2015-2016 BMW 428i xDrive Gran Coupe, downstream; Fits 2012-2016 BMW 528i, downstream; Fits 2012-2016 BMW 528i xDrive, downstream; Fits 2012-2016 BMW Z4, downstream; Fits 2012-2015 BMW X1, downstream; Fits 2010-2012 BMW X3, downstream; Fits 2011 BMW 528i, downstream.

This part cross-references DENSO Auto Parts (e.g., 234-4479, 234-4562) for the same application.

What This Sensor Helps Address

  • Fault codes related to downstream oxygen sensor performance.
  • Incorrect air-fuel feedback after sensor aging or contamination.
  • Rough emissions monitoring caused by a failing sensor signal.
  • Driveability issues tied to inaccurate exhaust oxygen readings.

Installation Notes and Quality

Use the vehicle's original downstream sensor location and verify connector routing before installation. Confirm thread size, harness length, and wire count against the removed part to ensure proper replacement. NTK states these oxygen sensors are extensively tested during manufacturing and built to meet or exceed OE specifications.

Related reading

This part fits 75 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelSubmodelLitersCylindersFuel TypePositionNotes
2018BMW320i—2.0LL4GASDownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2018BMW320i xDrive—2.0LL4GASDownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2018BMWX4—2.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2018BMWX5—2.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2017BMW320i—2.0LL4GASDownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2017BMW320i xDrive—2.0LL4GASDownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2017BMWX3—2.0LL4GASDownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2017BMWX4—2.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2017BMWX5—2.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2016BMW228i—2.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2016BMW228i xDrive—2.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2016BMW320i—2.0LL4GASDownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2016BMW320i xDrive—2.0LL4GASDownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2016BMW328i—2.0LL4GASDownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2016BMW328i GT xDrive—2.0LL4GASDownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2016BMW328i xDrive—2.0LL4GASDownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2016BMW428i—2.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2016BMW428i Gran Coupe—2.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2016BMW428i xDrive—2.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2016BMW428i xDrive Gran Coupe—2.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2016BMW528i—2.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2016BMW528i xDrive—2.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2016BMWX3—2.0LL4GASDownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2016BMWX4—2.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2016BMWX5—2.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2016BMWZ4—2.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2015BMW228i—2.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2015BMW228i xDrive—2.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2015BMW320i—2.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2015BMW320i xDrive—2.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2015BMW328i—2.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2015BMW328i GT xDrive—2.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2015BMW328i xDrive—2.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2015BMW428i—2.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2015BMW428i Gran Coupe—2.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2015BMW428i xDrive—2.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2015BMW428i xDrive Gran Coupe—2.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2015BMW528i—2.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2015BMW528i xDrive—2.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2015BMWX1—2.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2015BMWX3—2.0LL4GASDownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2015BMWX4—2.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2015BMWZ4—2.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2014BMW228i—2.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2014BMW320i—2.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2014BMW320i xDrive—2.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2014BMW328i—2.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2014BMW328i GT xDrive—2.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2014BMW328i xDrive—2.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2014BMW428i—2.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2014BMW428i xDrive—2.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2014BMW528i—2.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2014BMW528i xDrive—2.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2014BMWX1—2.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2014BMWX3—2.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2014BMWZ4—2.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2013BMW320i—2.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2013BMW320i xDrive—2.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2013BMW328i—2.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2013BMW328i xDrive—2.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2013BMW528i—2.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2013BMW528i xDrive—2.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2013BMWX1—2.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2013BMWX3—2.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2013BMWZ4—2.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2012BMW320i—2.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2012BMW328i—2.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2012BMW528i—2.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2012BMW528i xDrive—2.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2012BMWX1—2.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2012BMWX3xDrive28i3.0LL6—DownstreamCylinders 1-3 downstream oxygen sensor equivalent to OE design.; Direct Fit Oxygen Sensor
2012BMWZ4—2.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2011BMW528i—3.0LL6—DownstreamCylinders 1-3 downstream oxygen sensor equivalent to OE design.; Direct Fit Oxygen Sensor
2011BMWX3xDrive28i3.0LL6—DownstreamCylinders 1-3 downstream oxygen sensor equivalent to OE design.; Direct Fit Oxygen Sensor
2010BMWX3xDrive28i3.0LL6—DownstreamCylinders 1-3 downstream oxygen sensor equivalent to OE design.; Direct Fit Oxygen Sensor
Directly replaces or cross-references 9 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Bosch — 16233Bosch — 16239Carlson — 16220DENSO Auto Parts — 234-4479DENSO Auto Parts — 234-4562URO — 11787589122234-44771178759690911787603022