Oxygen Sensor Rear Downstream Air Fuel Ratio Lambda For Toyota Highlander 04-13
Upgrade your Toyota Highlander’s exhaust monitoring with this Rear Downstream Oxygen Sensor Lambda (O2 sensor), engineered as a precise, heated replacement for 2004–2013 Highlander models and compatible Lexus RX variants. This downstream sensor plays a crucial role in the engine management system by measuring the exhaust gas composition after combustion, allowing the ECU to fine-tune the air-fuel mixture for cleaner emissions, better fuel efficiency, and smoother drivability. With a heated design, it reaches optimal operating temperature quickly, delivering accurate readings even in cold starts and reducing catalyst wear over time.
Designed for seamless fit and long-term reliability, this sensor uses a piezoelectric sensing element and a dedicated heating circuit to ensure stable performance under varied driving conditions. Its broad OE-number compatibility simplifies replacement, helping you avoid mismatches and awkward fitment.
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Benefits & Tips
- Achieve cleaner exhaust emissions and maintain proper catalytic converter efficiency by ensuring accurate downstream oxygen sensing.
- Experience quicker heating and faster sensor response during cold starts thanks to the integrated heating element.
- Easy, reliable replacement for multiple Highlander/Lexus models with one common fitment across listed OE numbers.
Product specifications
- Brand: IWOKPHD
- Sensor Type: Piezoelectric
- Heating Type: Heating
- Measuring Range / Function: Rear Downstream Lambda/O2 Sensor (Oxygen Sensor)
- OEM Numbers: 89465-48180, 89465-0E010, 89465-0E030, 89465-0E050, 2344509, 234-4509, 8946548110, 2133873, SG1432, ES20226, 15570, 15758, 24454, 8946548230
- Part/Model Fitment: Downstream Oxygen Sensor for Toyota Highlander models listed below; also compatible with Lexus RX330/RX350/RX450H as downstream/right/left positions per model
- Fitment highlights:
- For Lexus RX330 3.3L V6 (2004–2006) Downstream Right
- For Lexus RX350 3.5L V6 (2007–2014) Downstream Right
- For Lexus RX450H 3.5L V6 Electric/Gas (2010–2013) Downstream Right
- For Toyota Highlander 2.7L L4 (2009–2013) Downstream
- For Toyota Highlander 3.3L V6 (2004–2007) Downstream Right
- For Toyota Highlander 3.5L V6 (2008–2013) Downstream Right
- For Toyota Highlander 3.5L V6 Electric/Gas (2011–2013) Downstream Left
- Origin: Mainland China
- Compatibility notes: Direct replacement with matching electrical and physical dimensions to ensure stable installation
Package includes:
- 1 x Oxygen Sensor
Warnings/Reminders
- Please check the product picture and fitment before you order. If you’re not sure about compatibility, contact us before purchasing. Orders placed without verification may not be eligible for refunds due to fitment issues.
- All items ship within 2 working days after payment confirmation. Ensure shipping address is correct to avoid delays. Import duties and taxes are the buyer’s responsibility where applicable.