Oxygen Sensor Downstream Rear 89465-B4030 for Toyota Rush 2008-2009 J200E/J210E Direct Fit
Upgrade or replace your Toyota Rush downstream oxygen sensor with the Toyota Rush 2008-2009 Downstream Rear O2 Sensor 89465-B4030 from WEIDA AUTO PARTS. Designed to fit 2008-2009 Rush models (J200E/J210E), this OEM-spec sensor ensures accurate monitoring of exhaust after-treatment. With a robust 4-wire magnetic induction design, it delivers reliable readings to the engine control unit, helping optimize fuel efficiency, reduce emissions, and prevent false diagnostic alerts.
What makes a downstream O2 sensor important? While upstream sensors monitor air intake and combustion, the downstream sensor checks the efficiency of the catalytic converter by sampling exhaust after treatment. A healthy downstream sensor provides accurate data to support proper fuel trim adjustments and smoother engine operation, contributing to better performance and cleaner emissions over time.
This sensor is built to meet OEM expectations, featuring a 4-wire heated configuration for faster warm-ups and stable operation under varying driving conditions. Its magnetic induction sensing technology delivers consistent signals that the ECU can rely on, protecting against drivability issues and long-term sensor drift. Matching the OEM number 89465-B4030 helps ensure a precise fit, correct connector alignment, and expected electrical behavior.
Benefits & Tips
- Maintain catalytic converter monitoring with accurate downstream readings to support optimal emissions control and fuel economy.
- Achieve smoother idle and steadier engine performance by improving ECU fuel-trim accuracy after replacement.
- Direct-fit replacement for 2008-2009 Toyota Rush (J200E/J210E) with a plug-and-play approach for professional technicians or confident DIYers.
Product specifications
- Brand Name: WEIDA AUTO PARTS
- OEM No.: 89465-B4030
- Position: Downstream Rear Oxygen Sensor
- Vehicle Compatibility: 2008-2009 Toyota Rush (J200E/J210E)
- Sensor Type: Magnetic Induction
- Configuration: 4-Wire
- Origin: Mainland China
Package includes:
- Oxygen sensor 89465-B4030 (Downstream Rear) – 1 unit
Warnings/Reminders
- Professional installation is recommended to ensure correct torque, wiring, and connector seating.
- Disconnect the vehicle battery and allow the exhaust system to cool before handling the sensor.
- Avoid bending or damaging the sensor threads or sensor body during removal or installation.
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