HomeEmission Control > SensorsWalker 350-34905 Oxygen Sensor - Downstream
Part #: 350-34905

Walker 350-34905 Oxygen Sensor - Downstream

Walker Products Aftermarket, Downstream
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OE Direct Replacement — Bolt-on fit, no modifications needed
Walker Products Aftermarket, Downstream
Fitment: Peugeot, 407
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Fast Shipping — Most orders ship same business day before 1pm CST

Reliable Oxygen Sensor Replacement for Emission Control

The Walker 350-34905 oxygen sensor is designed to provide accurate air-fuel mixture readings for efficient engine performance. This sensor is a critical component in emission control systems, helping maintain optimal combustion and reduce harmful emissions.

  • Walker brand quality and durability
  • Part number 350-34905 for precise identification
  • Compatible with various vehicle makes and models requiring aftermarket oxygen sensors
  • Designed to meet or exceed OEM specifications
  • Part of the Walker Products Aftermarket line, ensuring reliable performance

About the Walker Products Aftermarket Line

The Walker Products Aftermarket line offers a comprehensive range of emission control components, including oxygen sensors engineered to match original equipment standards. This product line focuses on delivering dependable parts that support vehicle emission systems, making the Walker 350-34905 oxygen sensor a suitable choice for maintaining emission compliance and engine efficiency.

Product Details and Functionality

The Walker 350-34905 oxygen sensor monitors the oxygen levels in the exhaust gases, providing real-time data to the engine control unit (ECU). This information is essential for adjusting the air-fuel ratio, which directly impacts fuel economy and emission output. Proper sensor function helps prevent engine misfires, rough idling, and increased emissions.

Common Issues Addressed by This Oxygen Sensor

  • Check engine light triggered by faulty oxygen sensor readings
  • Poor fuel economy due to incorrect air-fuel mixture
  • Increased exhaust emissions failing emissions tests
  • Engine performance problems such as hesitation or rough idle
  • Failed vehicle emissions inspections

Installation Notes and Tips

When installing the Walker 350-34905 oxygen sensor, ensure the vehicle is compatible with this aftermarket part number. Use proper tools to avoid damaging the sensor or threads. It is recommended to disconnect the battery before installation and to follow the vehicle manufacturer’s torque specifications. After installation, clear any diagnostic trouble codes and verify sensor operation with a scan tool.

Quality Assurance and Warranty

Walker oxygen sensors, including part number 350-34905, are manufactured to meet stringent quality standards. While specific warranty details may vary, Walker Products Aftermarket parts typically come with a limited warranty covering defects in materials and workmanship. Refer to the product documentation for exact warranty terms.

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* 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.