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NGK

NTK OZA675-EE1 Lambda Oxygen Sensor NGK 7978 - 4-Wire Heated O2, 300mm Lead - Upstream/Downstream (Pre/Post-Cat) - Fits Abarth 500/595/695, Alfa Romeo, Fiat, BMW, Iveco, Lancia

NTK OZA675-EE1 Lambda Oxygen Sensor NGK 7978 - 4-Wire Heated O2, 300mm Lead - Upstream/Downstream (Pre/Post-Cat) - Fits Abarth 500/595/695, Alfa Romeo, Fiat, BMW, Iveco, Lancia

£34.29
£53.03 £34.29
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Heads-up on cancellations & returns: if you cancel an order or return an item, you won't get back 100% of what you paid. We apply a 10% restocking fee, the outbound shipping is non-refundable, and we have to pass on Shopify / PayPal payment processing fees; these aren't returned to us when we refund you. International orders also lose on exchange-rate spread in both directions. If the original packaging is damaged or missing, a reboxing charge applies. For international orders specifically, if you refuse to pay our shipping invoice or supply a prepaid label after placing the order, the same deductions apply. We're upfront about this — please be sure of your purchase before ordering.

NTK NGK 7978 OZA675-EE1 4‑Pin Heated Lambda Probe 300 mm Lead

Restore crisp fuelling, sharper throttle response and cleaner emissions with this NTK by NGK OE-quality lambda probe. Part no. NTK OZA675-EE1 and NGK 7978. This 4‑pin heated exhaust gas sensor with a 300 mm pigtail delivers fast light-up and rock-solid feedback for accurate fuel trims and dependable MOT readiness across a wide range of Abarth, Alfa Romeo, Fiat, BMW, Iveco and Lancia models.

We install this exact sensor on our own builds and for customers at MJ Modifications. Results are consistently excellent: smooth idle, improved miles per gallon, strong closed-loop control and long-term reliability. If your car is running rich or lean, showing lambda-related warnings, or flirting with emissions limits, this is the proven replacement part to bring the ECU back into line.

Why enthusiasts choose this NTK sensor

  • Genuine NTK by NGK quality for OE-level accuracy and durability
  • Heated 4‑wire zirconia probe for rapid warm-up and stable feedback
  • 30 cm lead for tidy routing and easy installation
  • Direct-fit connector design for the listed applications
  • Ideal for front position Bank 1 Sensor 1 or rear position Bank 1 Sensor 2 depending on vehicle

Benefits include precise AFR control, steadier idle, cleaner tailpipe gases, better fuel efficiency and consistent performance in all weather. Perfect as a replacement sensor before the catalyst or after the catalyst where specified by the manufacturer.

Fitment highlights

Suits popular petrol applications across:

  • Abarth 500, 595, 695, Grande Punto, Punto Evo
  • Alfa Romeo 147, 166, GT, GTV, Spider, Giulietta, MiTo
  • Fiat 500, Bravo, Stilo, Punto, Grande Punto, Punto Evo, Panda, Doblo, Linea, Fiorino, Qubo, Marea, Palio, Siena, Strada
  • BMW 3 Series E91 318d application noted
  • Iveco Daily Natural Power variants
  • Lancia Lybra, Y

Position can vary by model and engine. It may be used as the pre-catalyst or post-catalyst sensor on the vehicles listed. If you are unsure, we are happy to verify.

Part numbers

  • NTK: OZA675-EE1
  • NGK: 7978

Get it fitted by pros

Want it installed correctly first time. Book fitting with MJ Modifications in Warwickshire. Email info@mjmodifications.co.uk for a quote and availability. We can also confirm the correct sensor position for your vehicle when you provide your registration or last 7 of your VIN.

Compatibility check before dispatch

To ensure you receive the correct probe for your car, include your UK registration or the last 7 digits of your VIN at checkout and tell us if you need Bank 1 Sensor 1 or Bank 1 Sensor 2. We will verify suitability prior to shipping.

Search terms customers use

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