Walker 350-34425 Oxygen Sensor - Center or Downstream

Overview of Walker 350-34425 Oxygen Sensor for Volvo Vehicles

The Walker 350-34425 oxygen sensor is designed specifically for select Volvo models including the S40, S60, S70, V50, and V70. This heated oxygen sensor ensures accurate emissions monitoring and optimal engine performance by providing precise air-fuel mixture data to the vehicle's engine control unit.

• Heated oxygen sensor with 4-wire configuration
• Specific fit for Volvo S40, S60, S70, V50, and V70 models
• 29.45-inch wiring harness length for flexible installation
• Threaded mounting type with 18.0 mm thread diameter
• Radiused polygon male connector for secure connection
• Wire gauge measurement of 20 for reliable signal transmission
• Overall length of 32.99 inches for proper fitment

Detailed Features and Specifications

This Walker oxygen sensor (part number 350-34425) is a heated sensor type, which allows it to reach operating temperature quickly, improving emissions control efficiency. The sensor includes a 4-wire design, which supports both the sensor signal and the heating element. The wiring harness length of 29.45 inches provides sufficient reach for installation in the engine bay, while the 20-gauge wire ensures durability and consistent electrical performance. The sensor mounts via a threaded connection with an 18.0 mm diameter, compatible with the designated Volvo models. The connector features a radiused polygon shape and a male gender, ensuring a secure and precise fit with the vehicle’s wiring harness.

Walker Products Aftermarket Line Information

The Walker Products Aftermarket line focuses on providing reliable emission control components that meet or exceed OEM specifications. This oxygen sensor is part of that line, offering a direct replacement solution engineered for specific vehicle applications. The product line emphasizes quality and fitment accuracy, making it suitable for Volvo owners seeking dependable emission sensor replacements.

Common Applications and Problem Resolution

• Restores accurate oxygen sensing for improved fuel efficiency
• Resolves check engine light issues related to oxygen sensor faults
• Helps correct rough idling or engine hesitation caused by faulty sensors
• Supports proper catalytic converter function by maintaining correct air-fuel ratios
• Reduces emissions by ensuring precise exhaust gas monitoring

Installation Notes and Tips

When installing the Walker 350-34425 oxygen sensor, ensure the engine is cool to avoid burns. Use appropriate tools to remove the old sensor and avoid damaging the threaded mounting hole. Verify the connector matches the vehicle’s wiring harness before installation. The 29.45-inch wiring harness length allows for flexible routing, but avoid sharp bends or contact with hot engine components. After installation, clear any diagnostic trouble codes and perform a test drive to confirm proper sensor operation.

Quality Assurance and Warranty

Walker oxygen sensors undergo rigorous testing to meet emission control standards and provide reliable performance. The 350-34425 sensor is manufactured to precise specifications for Volvo vehicles, ensuring compatibility and durability. While specific warranty details may vary, Walker Products Aftermarket parts typically include a limited warranty against defects in materials and workmanship.