NTK Lambda / O2 Oxygen Sensor NGK 1975 (OTA7N-5D2) - Fits BMW Z3 3.2 E36 1997-2001 & Volvo S40 I 1.8/2.0 1995-2003 - Upstream/Downstream OE Quality Replacement

NTK Lambda / O2 Oxygen Sensor NGK 1975 (OTA7N-5D2) - Fits BMW Z3 3.2 E36 1997-2001 & Volvo S40 I 1.8/2.0 1995-2003 - Upstream/Downstream OE Quality Replacement

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NTK Lambda Sensor / O2 Sensor NGK 1975 - OTA7N-5D2

Replace a tired oxygen sensor with the NTK Lambda Sensor, also known as the NTK O2 Sensor or oxygen sensor, NGK part number 1975, reference OTA7N-5D2. NTK is the sensor division of NGK and is an OE supplier to many manufacturers, delivering reliable, accurate air-fuel ratio feedback for optimum performance, fuel economy and emissions control.

Why choose this NTK oxygen sensor

  • Restores precise air-fuel ratio control for smoother idle and sharper throttle response.
  • Helps reduce emissions and supports MOT readiness when used to replace a faulty sensor.
  • Built to OE standards by NTK for consistent performance and long service life.
  • Trusted by enthusiasts. We use NTK sensors on our own cars and customer builds and feedback has been excellent.

Compatibility

Use our product recommender to double check fitment. If you need help, email Sales@nforcd.com and we will confirm the correct upstream or downstream position for your car before shipping.

BMW

  • Z Series
    • Z3
      • E36 3.2 (236 KW / 321 HP) (1998-2001)
      • E36 3.2 (236 KW / 321 HP) (1997-2001)

Volvo

  • S40
    • S40 I (VS, 644)
      • 1.8 (90 KW / 122 HP) (03/1999 - 12/2003)
      • 2.0 (100 KW / 136 HP) (07/1995 - 12/2003)

Pre-dispatch compatibility check

To ensure the part fits your vehicle, we run a compatibility check prior to dispatch. Provide your UK registration or the last 7 digits of your VIN at checkout and we will verify the correct sensor position and fitment.

Common symptoms of a failing lambda sensor

  • Check engine light with oxygen sensor related fault codes.
  • Poor fuel economy and rich or lean running.
  • Rough idle, hesitation or flat spots.
  • High emissions or MOT failures linked to the O2 sensor.

Part numbers

  • NGK / NTK: 1975
  • NTK reference: OTA7N-5D2

Professional fitting

We recommend professional installation. Nforcd is based in Warwickshire and can fit this NTK oxygen sensor for you. Request a fitting quote at Sales@nforcd.com.

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