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Walker 350-341007 Oxygen Sensor - Downstream Rear
Reliable Oxygen Sensor for Toyota Sienna Emission Control
The Walker 350-341007 oxygen sensor is designed to maintain optimal engine performance and emissions control for your Toyota Sienna. This sensor plays a critical role in monitoring exhaust gases to ensure efficient fuel combustion and compliance with emission standards.
- Compatible with Toyota Sienna models
- Part number 350-341007 for precise identification
- Category: Emission Control > Sensors
- Type: Oxygen Sensor for accurate exhaust gas measurement
- Manufactured by Walker, a trusted brand in automotive parts
Walker Products Aftermarket Line Overview
The Walker Products Aftermarket line offers a range of emission control components designed to meet or exceed OEM specifications. This product line focuses on delivering reliable and durable sensors that support vehicle emission systems, helping maintain engine efficiency and regulatory compliance. The 350-341007 oxygen sensor is part of this line, ensuring compatibility and performance for Toyota Sienna vehicles.
Product Details and Functionality
The Walker 350-341007 oxygen sensor monitors the oxygen levels in the exhaust gases of your Toyota Sienna. By providing real-time data to the engine control unit (ECU), it helps regulate the air-fuel mixture for optimal combustion. This sensor contributes to reducing harmful emissions and improving fuel economy. Its precise fitment for Toyota Sienna models ensures accurate readings and reliable operation within the vehicle’s emission control system.
Common Issues Addressed by This Oxygen Sensor
- Engine performance problems due to incorrect air-fuel mixture
- Increased emissions leading to failed emissions tests
- Poor fuel economy caused by inefficient combustion
- Check engine light triggered by faulty oxygen sensor readings
- Rough idling or hesitation during acceleration
Installation Notes and Tips
When replacing the oxygen sensor on your Toyota Sienna, ensure the engine is cool to avoid burns. Use the correct tools to remove the old sensor and install the Walker 350-341007 sensor securely. Verify the sensor’s electrical connections are properly seated to maintain accurate signal transmission to the ECU. It is recommended to follow the vehicle manufacturer’s guidelines for sensor replacement intervals and procedures.
Quality Assurance and Warranty
Walker oxygen sensors are manufactured to meet industry standards for durability and performance. The 350-341007 part undergoes rigorous quality control to ensure reliable operation within the emission control system of Toyota Sienna vehicles. Please refer to Walker’s warranty policy for specific coverage details related to this oxygen sensor.
This part fits 29 vehicles. Search below:
| Year | Make | Model | Submodel | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|---|
| 2020 | Toyota | Sienna | XLE | 3.5L | V6 | GAS | Downstream Rear | Rear downstream oxygen sensor must be installed in correct position.; Walker Products Aftermarket |
| 2020 | Toyota | Sienna | XLE Premium | 3.5L | V6 | GAS | Downstream Rear | Rear downstream oxygen sensor must be installed in correct position.; Walker Products Aftermarket |
| 2020 | Toyota | Sienna | SE | 3.5L | V6 | GAS | Downstream Rear | Rear downstream oxygen sensor must be installed in correct position.; Walker Products Aftermarket |
| 2020 | Toyota | Sienna | SE Premium | 3.5L | V6 | GAS | Downstream Rear | Rear downstream oxygen sensor must be installed in correct position.; Walker Products Aftermarket |
| 2020 | Toyota | Sienna | Limited | 3.5L | V6 | GAS | Downstream Rear | Rear downstream oxygen sensor must be installed in correct position.; Walker Products Aftermarket |
| 2020 | Toyota | Sienna | Limited Premium | 3.5L | V6 | GAS | Downstream Rear | Rear downstream oxygen sensor must be installed in correct position.; Walker Products Aftermarket |
| 2020 | Toyota | Sienna | LE | 3.5L | V6 | GAS | Downstream Rear | Rear downstream oxygen sensor must be installed in correct position.; Walker Products Aftermarket |
| 2020 | Toyota | Sienna | L | 3.5L | V6 | GAS | Downstream Rear | Rear downstream oxygen sensor must be installed in correct position.; Walker Products Aftermarket |
| 2019 | Toyota | Sienna | XLE | 3.5L | V6 | GAS | Downstream Rear | Rear downstream oxygen sensor must be installed in correct position.; Walker Products Aftermarket |
| 2019 | Toyota | Sienna | XLE Premium | 3.5L | V6 | GAS | Downstream Rear | Rear downstream oxygen sensor must be installed in correct position.; Walker Products Aftermarket |
| 2019 | Toyota | Sienna | SE | 3.5L | V6 | GAS | Downstream Rear | Rear downstream oxygen sensor must be installed in correct position.; Walker Products Aftermarket |
| 2019 | Toyota | Sienna | SE Premium | 3.5L | V6 | GAS | Downstream Rear | Rear downstream oxygen sensor must be installed in correct position.; Walker Products Aftermarket |
| 2019 | Toyota | Sienna | Limited | 3.5L | V6 | GAS | Downstream Rear | Rear downstream oxygen sensor must be installed in correct position.; Walker Products Aftermarket |
| 2019 | Toyota | Sienna | Limited Premium | 3.5L | V6 | GAS | Downstream Rear | Rear downstream oxygen sensor must be installed in correct position.; Walker Products Aftermarket |
| 2019 | Toyota | Sienna | LE | 3.5L | V6 | GAS | Downstream Rear | Rear downstream oxygen sensor must be installed in correct position.; Walker Products Aftermarket |
| 2019 | Toyota | Sienna | L | 3.5L | V6 | GAS | Downstream Rear | Rear downstream oxygen sensor must be installed in correct position.; Walker Products Aftermarket |
| 2018 | Toyota | Sienna | XLE | 3.5L | V6 | GAS | Downstream Rear | Rear downstream oxygen sensor must be installed in correct position.; Walker Products Aftermarket |
| 2018 | Toyota | Sienna | XLE Premium | 3.5L | V6 | GAS | Downstream Rear | Rear downstream oxygen sensor must be installed in correct position.; Walker Products Aftermarket |
| 2018 | Toyota | Sienna | SE | 3.5L | V6 | GAS | Downstream Rear | Rear downstream oxygen sensor must be installed in correct position.; Walker Products Aftermarket |
| 2018 | Toyota | Sienna | SE Premium | 3.5L | V6 | GAS | Downstream Rear | Rear downstream oxygen sensor must be installed in correct position.; Walker Products Aftermarket |
| 2018 | Toyota | Sienna | Limited | 3.5L | V6 | GAS | Downstream Rear | Rear downstream oxygen sensor must be installed in correct position.; Walker Products Aftermarket |
| 2018 | Toyota | Sienna | Limited Premium | 3.5L | V6 | GAS | Downstream Rear | Rear downstream oxygen sensor must be installed in correct position.; Walker Products Aftermarket |
| 2018 | Toyota | Sienna | LE | 3.5L | V6 | GAS | Downstream Rear | Rear downstream oxygen sensor must be installed in correct position.; Walker Products Aftermarket |
| 2018 | Toyota | Sienna | L | 3.5L | V6 | GAS | Downstream Rear | Rear downstream oxygen sensor must be installed in correct position.; Walker Products Aftermarket |
| 2017 | Toyota | Sienna | XLE | 3.5L | V6 | GAS | Downstream Rear | Rear downstream oxygen sensor must be installed in correct position.; Walker Products Aftermarket |
| 2017 | Toyota | Sienna | SE | 3.5L | V6 | GAS | Downstream Rear | Rear downstream oxygen sensor must be installed in correct position.; Walker Products Aftermarket |
| 2017 | Toyota | Sienna | Limited | 3.5L | V6 | GAS | Downstream Rear | Rear downstream oxygen sensor must be installed in correct position.; Walker Products Aftermarket |
| 2017 | Toyota | Sienna | LE | 3.5L | V6 | GAS | Downstream Rear | Rear downstream oxygen sensor must be installed in correct position.; Walker Products Aftermarket |
| 2017 | Toyota | Sienna | L | 3.5L | V6 | GAS | Downstream Rear | Rear downstream oxygen sensor must be installed in correct position.; Walker Products Aftermarket |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.