NTK NGK O2 Oxygen Lambda Sensor

NTK by NGK 4‑Wire Lambda Probe - Part No. 1405 - Ref OZA457-EE3

Bring back sharp throttle response, stable idle and cleaner emissions with this premium NTK by NGK exhaust gas sensor. Part number 1405, reference OZA457-EE3, this direct-fit 4-wire probe delivers OE-level accuracy and long-term reliability across a wide range of classic BMW V8 petrol models listed below.

We use this sensor in-house and our customers love the results. Replacing a tired probe often transforms drivability and can improve fuel economy, reduce exhaust smells and help avoid emissions-related MOT headaches. If your dash light is on for a mixture control fault or you are chasing rich or lean running, this is the quality replacement you want to fit once and trust.

Why this NTK sensor is a smart upgrade

• OE-equivalent accuracy for precise air fuel feedback and consistent fuel trims
• Fast warm-up 4-wire design for quick closed-loop operation
• Direct-fit connector and correct length harness for the BMW applications listed
• Helps restore MPG, smooth out hesitation and stabilise idle quality
• Supports clean emissions to help pass MOT tests when the old probe has aged
• Trusted NTK engineering from NGK, a global leader in ignition and sensor technology

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Compatibility - BMW fitment

Always match position and connector style on your vehicle. This listing covers the following models:

Technical details

Number of wires	4
Cable length	300 mm
Construction	Direct replacement zirconia lambda probe

Part numbers

• NGK: 1405
• NTK: OZA457-EE3

Fitting and support

Want it installed correctly first time? Book professional fitting with MJ Modifications in Warwickshire. Request a quote at info@mjmodifications.co.uk. Not local? Email us for advice on position and compatibility before you order.

Compatibility check before dispatch

To ensure the correct item, provide your UK registration or the last 7 digits of your VIN at checkout and we will confirm suitability prior to shipping.

Ready to cure rough running and emissions warnings on your BMW V8? Choose the NTK by NGK 1405 - OZA457-EE3 for dependable, plug-in performance and long service life.