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Upstream Oxygen Sensor for Mazda MX-5 Miata 2.0L P51B-18-8GX

Unité de gestion de stock: 1005011796919549-Default Title
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€58,84
-37% €94,14 €58,84

Upgrade or replace your Mazda MX-5 Miata’s upstream oxygen sensor with the IWOKPHD Upstream Oxygen Sensor. Designed for the 2016–2018 2.0L L4 engines, this sensor monitors exhaust gas content and sends precise signals to the engine control unit to optimize the air-fuel ratio. With support for OEM references including P51B-18-8GX and related part numbers (P51B-18-8GX, P51B188GX, P51B 18 8GX, 234-5720, 2345720, 234 5720, 27034, 450-35075, 45035075), it offers dependable fitment and reliable performance. The upstream sensor features a heating type for faster warm-up and Piezoelectric sensor technology to deliver quick, accurate readings across engine temperatures. Originating from Mainland China, this part is crafted to meet or exceed OEM expectations for a seamless replacement.

All electronic and mechanical equipment, devices and machines sold by InterCyprus to EU countries are CE certified and carry a two year warranty.

Benefits & Tips

  • Faster sensor warm-up due to the integrated heating element, paving the way for accurate readings soon after startup.
  • Accurate oxygen data helps the engine control unit optimize fuel delivery, supporting smoother performance and consistent driveability.
  • As a direct replacement for worn or failed upstream O2 sensors on 2016–2018 MX-5 Miata 2.0L L4 models, it helps maintain proper engine efficiency and emissions compliance.

Product specifications

  • Brand: IWOKPHD
  • Type: Upstream Oxygen Sensor
  • Sensor Type: Piezoelectric
  • Heating: Heating Type
  • Application: Mazda MX-5 Miata 2.0L L4 (2016–2018)
  • OEM/Part Numbers: P51B-18-8GX, P51B188GX, P51B 18 8GX, 234-5720, 2345720, 234 5720, 27034, 450-35075, 45035075
  • Origin: Mainland China
  • Warranty: 2 years (Replacement Warranty)
  • Note: Please double-check your original part or share the Part Number/original photos to confirm compatibility before ordering.

Package includes:

  • 1 x Upstream Oxygen Sensor

Warnings/Reminders:

  • Please check the picture and the part number carefully to ensure you’ve bought the right part for your car.
  • If you cannot be sure which item fits your car, please send the Part Number or the original product photos to us to confirm before ordering.
  • The only way to be 100% sure the part will fit your vehicle is to check your original part. We will check for you and reply within 24 hours.

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