Walker 350-34647 Oxygen Sensor - Downstream

Overview of Walker Oxygen Sensor for Mercedes-Benz S320

The Walker 350-34647 oxygen sensor is designed specifically for the Mercedes-Benz S320, ensuring precise emission control and optimal engine performance. This heated oxygen sensor features a threaded mounting type and a radiused polygon female connector for secure installation.

• Heated oxygen sensor with 4-wire configuration
• Specific fit for Mercedes-Benz S320 models
• 15.08-inch wiring harness length for flexible routing
• Thread diameter of 18.0 mm with threaded mounting
• Radiused polygon female connector for reliable connection
• Overall length of 18.62 inches for proper fitment
• Wire gauge measurement of 20 for durability and signal integrity

Walker Products Aftermarket Line Details

This oxygen sensor is part of the Walker Products Aftermarket line, which focuses on providing replacement emission control components engineered to meet or exceed OEM specifications. The line emphasizes compatibility and durability, making it suitable for specific vehicle applications like the Mercedes-Benz S320.

Product Description and Technical Specifications

The Walker 350-34647 oxygen sensor is a heated sensor designed to provide accurate air-fuel mixture readings to the engine control unit. It features a 4-wire design, which includes heating elements to reduce sensor warm-up time and improve emission control efficiency. The sensor’s wiring harness length of 15.08 inches allows for proper installation without excess slack, while the 20-gauge wire ensures reliable electrical performance. The radiused polygon female connector and 18.0 mm threaded mounting type provide a secure and precise fit, tailored specifically for the Mercedes-Benz S320.

Common Applications and Issues Addressed

• Replacement for faulty or worn oxygen sensors in Mercedes-Benz S320
• Helps resolve engine performance issues related to incorrect air-fuel mixture
• Reduces emissions by providing accurate sensor data to the ECU
• Prevents check engine light triggers caused by sensor failure
• Improves fuel efficiency by maintaining proper combustion control

Installation Notes and Tips

When installing the Walker 350-34647 oxygen sensor, ensure the vehicle is cool to avoid burns. Use appropriate tools to remove the old sensor and avoid damaging the wiring harness. Confirm the connector matches the radiused polygon female shape for a secure connection. Thread the sensor carefully into the mounting hole to prevent cross-threading. It is recommended to apply anti-seize compound on the threads if not pre-applied.

Quality Assurance and Warranty

Walker Products Aftermarket oxygen sensors are manufactured to meet strict quality standards, ensuring reliable performance and durability. While specific warranty details for part number 350-34647 may vary, Walker typically offers coverage against defects in materials and workmanship. Refer to product documentation for exact warranty terms.