Oxygen Sensor Front Upstream for Lexus RX350 RX450h IWOKPHD O2 Sensor Replacement

Upgrade your Lexus RX350 or RX450h with confidence using this IWOKPHD upstream oxygen sensor — the front O2 sensor designed to deliver precise exhaust air-fuel readings for optimal engine performance. This heating-type, piezoelectric sensor helps your vehicle maintain efficient combustion, reduces unnecessary emissions, and supports smoother idling and throttle response across driving conditions. Engineered for 2016–2021 model years, it fits RX350 and RX450h, and shares compatibility with select Toyota Highlander and Sienna configurations, delivering OE-like performance without the OEM price tag.

By delivering accurate oxygen readings to the engine control unit, this sensor helps the ECU regulate fuel delivery more precisely. The result is steadier fuel economy, cleaner combustion, and a reduced likelihood of misfires or fluctuating idle. With a robust heating element, the sensor reaches optimal operating temperature quickly, improving response time after cold starts and helping the catalytic converter reach its working temperature sooner for better emission control.

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

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Benefits & Tips

• Restore precise air-fuel balance on 2016–2021 RX350/RX450h and compatible Toyota models for improved driveability and potential fuel savings.
• Use as a genuine-feel replacement that aligns with listed OEM numbers and compatible engine configurations, helping ensure a straightforward installation.
• After installation, run the engine and verify sensor readings with an OBD tool to confirm the upstream sensor is delivering accurate data to the ECU.

Product specifications

• Brand Name: IWOKPHD
• Choice: yes
• Sensor Type: Piezoelectric
• Heating Type: Yes
• Application scope: Upstream Front Oxygen Sensor
• OEM No.: 89467-0E240
• Part Numbers: 89467-0E240, 8946748310, 24662, 2349158, 894670E240, 234-9158, 89467-48310
• Model Years (Measuring Range): 2016–2021
• Origin: Mainland China
• Fitment (vehicle compatibility):
  • Toyota Highlander — 2016–2019 (6Cyl 3.5L; 2GRFE, 2GRFKS, 2GRFXE, 2GRFXS; GSU50, GSU55, GVU58)
  • Toyota Sienna — 2016–2020 (LE, SE, STD, XLE; 6Cyl 3.5L; 2GRFE, 2GRFKS; GSL30, GSL33, GSL35)
  • Lexus RX350 — 2016–2021 (6Cyl 3.5L; 2GRFKS, 2GRFXS; GGL20, GGL25, GYL20, GY)
  • Lexus RX450h — 2016–2021 (6Cyl 3.5L; 2GRFKS, 2GRFXS; GGL20, GGL25, GYL20, GYL25)
• Package Origin: Mainland China

Package includes:

• 1 pcs

Warnings/Reminders

• Ensure vehicle compatibility with the listed models and engines before purchase.
• All electronic and mechanical equipment, devices and machines sold by InterCyprus to EU countries are CE certified and carry a two year warranty.
• Warranty type: Replacement Warranty (2 years).