Walker 350-34621 Oxygen Sensor

Overview of Walker 350-34621 Oxygen Sensor

The Walker 350-34621 oxygen sensor is designed specifically for a wide range of BMW models, including the 1 Series M, 3 Series, 5 Series, 6 Series, 7 Series, X Series, and Z4. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by monitoring exhaust gases effectively.

• Heated sensor type for faster response times
• Specific fitment for select BMW models
• 21.18-inch wiring harness length for precise installation
• 22 gauge wire measurement with 4 wires for reliable signal transmission
• Radiused polygon male connector for secure connection
• Threaded mounting type with 18.0 mm thread diameter
• Overall length of 24.72 inches for proper placement

Walker Products Aftermarket Line Details

This oxygen sensor is part of the Walker Products Aftermarket line, which focuses on providing replacement emission control components that meet or exceed OEM specifications. The line emphasizes durability and compatibility, ensuring that parts like the 350-34621 oxygen sensor maintain vehicle emissions compliance and engine efficiency for BMW vehicles.

Product Features and Specifications

The Walker 350-34621 oxygen sensor features a heated sensor element that allows it to reach operating temperature quickly, improving fuel efficiency and reducing emissions sooner after engine start. The 4-wire design supports both the sensor signal and heater circuit, enhancing sensor reliability. Its radiused polygon male connector ensures a secure and precise fit, minimizing the risk of connection issues. The threaded mounting type with an 18.0 mm diameter allows for straightforward installation in the exhaust system. With a wiring harness length of 21.18 inches and an overall length of 24.72 inches, this sensor is engineered for exact fitment in compatible BMW models.

Compatible BMW Models and Applications

• BMW 1 Series M, 125i, 128i, 130i, 135i
• BMW 3 Series: 323i, 325i, 325xi, 328i, 328i xDrive, 328xi, 330i, 330xi, 335i, 335is, 335i xDrive, 335xi
• BMW 5 Series: 525i, 528i, 528i xDrive, 528xi, 535i, 535i xDrive, 535xi, 550i, 550i GT, 550i GT xDrive, 550i xDrive
• BMW 6 Series: 650Ci, 650i, 650i Gran Coupe, 650i xDrive, 650i xDrive Gran Coupe
• BMW 7 Series: 740i, 740Li, 750i, 750i xDrive, 750Li, 750Li xDrive, 760Li
• BMW X Series: X1, X3, X5, X6
• BMW Z Series: Z4

Common Issues Addressed by This Oxygen Sensor

• Incorrect air-fuel mixture readings causing poor fuel economy
• Check engine light triggered by faulty oxygen sensor signals
• Increased emissions due to sensor malfunction
• Engine performance problems such as rough idling or hesitation
• Failed emissions tests related to sensor accuracy

Installation Notes and Tips

Ensure the vehicle is cool before beginning installation to avoid burns. The threaded mounting type requires proper torque to avoid damage to the sensor or exhaust components. Verify the radiused polygon male connector aligns correctly with the vehicle’s wiring harness to ensure a secure connection. Use anti-seize compound on the threads if recommended by the vehicle manufacturer to facilitate future removal. Confirm compatibility with your specific BMW model using the part number 350-34621 before installation.

Quality Assurance and Warranty

Walker Products Aftermarket oxygen sensors are manufactured to meet stringent quality standards, ensuring reliable performance and durability. While specific warranty details for part number 350-34621 are not provided here, Walker typically offers limited warranties on their emission control components. Refer to the product documentation or manufacturer for exact warranty terms.