HomeEmission Control > SensorsWalker 350-34146 Oxygen Sensor - Downstream
Part #: 350-34146

Walker 350-34146 Oxygen Sensor - Downstream

Walker Products Aftermarket, Downstream
⚙️ 5 vehicles fit this part
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Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Walker Products Aftermarket, Downstream
🚗Fitment: Chevrolet, Astra and Vectra
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Walker Oxygen Sensor for Chevrolet Astra

The Walker 350-34146 oxygen sensor is designed specifically for Chevrolet Astra models, ensuring precise emission control and optimal engine performance. This sensor plays a critical role in monitoring exhaust gases to maintain efficient fuel combustion.

  • Compatible with Chevrolet Astra vehicles
  • Part number 350-34146 for accurate identification
  • Category: Emission Control > Sensors
  • Type: Oxygen Sensor
  • Manufactured by Walker under the Walker Products Aftermarket line

About the Walker Products Aftermarket Line

The Walker Products Aftermarket line offers a range of emission control components designed to meet or exceed OEM specifications. This product line focuses on providing reliable, direct-fit parts that support vehicle emissions systems, including oxygen sensors like the 350-34146. Using parts from this line helps maintain compliance with emission standards and supports engine management systems.

Product Details and Functionality

The Walker 350-34146 oxygen sensor is engineered to detect oxygen levels in the exhaust stream of Chevrolet Astra vehicles. By providing real-time data to the engine control unit (ECU), it helps regulate the air-fuel mixture for efficient combustion and reduced emissions. This sensor is essential for maintaining proper engine operation and fuel economy.

Common Applications and Issues Addressed

  • Helps resolve poor fuel economy caused by incorrect air-fuel mixture
  • Assists in reducing harmful exhaust emissions
  • Prevents engine performance issues related to faulty oxygen sensing
  • Supports smooth engine idling and acceleration
  • Addresses check engine light triggers related to oxygen sensor faults

Installation Notes and Tips

When installing the Walker 350-34146 oxygen sensor on a Chevrolet Astra, ensure the vehicle is cool to avoid burns. Use appropriate tools to avoid damaging the sensor or wiring. It is recommended to check the sensor connector and wiring harness for corrosion or damage before installation. Proper torque specifications should be followed to secure the sensor without over-tightening.

Quality Assurance and Warranty

Walker oxygen sensors, including part number 350-34146, are manufactured to meet industry standards for durability and performance. While specific warranty details are not provided here, Walker Products Aftermarket parts typically come with a limited warranty covering defects in materials and workmanship. Refer to the product packaging or manufacturer documentation for exact warranty terms.

This part fits 5 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
2008ChevroletAstra1.8LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket
2007ChevroletAstra1.8LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket
2006ChevroletAstra1.8LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket
2005ChevroletAstra2.4LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket
2004ChevroletAstra2.4LL4DownstreamOE Replacement

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.