Oxygen Sensor for Toyota Sienna 2014-2015 3.5L V6 Heated Lambda Air-Fuel Ratio 234-4416

Main Description

Upgrade your Toyota Sienna with the IWOKPHD Oxygen Sensor, a precise Air-Fuel Ratio (Lambda) sensor designed for 2014–2015 Sienna models powered by the 3.5L V6 DOHC engine. This heated, oxygen sensor monitors exhaust gas composition to help the ECU maintain an optimal air-fuel mixture, delivering smoother idle, improved throttle response, and cleaner emissions).

Designed as a direct-fit replacement, it supports consistent performance across base and higher trims (Base, CE, L, LE, Limited) for 2015 Sienna and similar configurations in 2014 models. With dependable materials and a robust electrical connection, this sensor serves as a reliable solution to restore engine efficiency and prevent common drivability issues caused by a failing lambda sensor.

Key part numbers to ensure compatibility include 234-4416, 89465-0E040, 89465-48220, and 894650E040. Originating from Mainland China, this sensor is built to meet the demands of daily driving and longer trips alike.

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 accurate exhaust sensing to improve fuel economy and idle stability on 2014–2015 Sienna 3.5L V6 DOHC.
• Maintain consistent engine performance across varying loads and speeds by ensuring proper air-fuel ratio measurements.
• Choose a direct-fit, heated oxygen sensor to reduce installation time and support long-term reliability.

Product Specifications

• Brand: IWOKPHD
• Part Numbers: 234-4416, 89465-0E040, 89465-48220, 894650E040
• Application: For 2015 Toyota Sienna (Base Mini Cargo Van 5-Door 3.5L 3456CC V6 GAS DOHC Naturally Aspirated); For 2015 Sienna CE Mini Passenger Van 4-Door 3.5L; For 2015 Sienna L Mini Cargo Van 5-Door 3.5L; For 2015 Sienna LE Mini Passenger Van 4-Door 3.5L; For 2015 Sienna Limited Mini Passenger Van 4-Door 3.5L; For 2014 Sienna Base/CE/L trims with 3.5L V6 DOHC Naturally Aspirated
• Sensor Type: Magnetic Induction
• Type: Heating Type
• Origin: Mainland China
• Warranty: 2 years (Replacement Warranty)
• Compatibility note: Designed specifically for 2014–2015 Sienna 3.5L V6 DOHC Naturally Aspirated configurations listed above
• Package: Replacement oxygen sensor

Package includes:

• 1 x Oxygen Sensor (Part numbers 234-4416 / 89465-0E040 / 89465-48220 / 894650E040)

Warnings / Reminders

• Compatibility is specified for 2014–2015 Toyota Sienna with 3.5L V6 DOHC Naturally Aspirated. Verify vehicle model and trim before purchase.
• This is a replacement sensor designed to match OEM specifications; professional installation is recommended to ensure proper fit and warranty eligibility.

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