Walker 350-34489 Oxygen Sensor - Downstream, Upstream, Upstream Left or Upstream Right

Overview of Walker 350-34489 Oxygen Sensor

The Walker 350-34489 oxygen sensor is designed specifically for select Buick, Cadillac, Chevrolet, GMC, Hummer, Isuzu, and Saab models. 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 fit for models like Buick LaCrosse, Chevrolet Impala, GMC Canyon, and Saab 9-5
• Threaded mounting type with 18.0 mm thread diameter
• 17.24 inches wiring harness length with 4 wires of 20 gauge
• Radiused polygon female connector for secure connection
• Overall length of 20.79 inches for proper installation

Detailed Product Description

This Walker Products Aftermarket oxygen sensor (part number 350-34489) is engineered to meet the exact specifications of your vehicle’s emission system. Featuring a heated sensor element, it provides quicker warm-up times compared to non-heated sensors, which helps reduce emissions during cold starts. The sensor includes a 17.24-inch wiring harness with four 20-gauge wires, ensuring reliable electrical connectivity. Its radiused polygon female connector and threaded mounting type with an 18.0 mm thread diameter allow for a precise and secure fit. The overall length of 20.79 inches accommodates proper placement within the exhaust system.

Walker Products Aftermarket Line

The Walker Products Aftermarket line focuses on delivering emission control components that meet or exceed OEM standards. This oxygen sensor is part of that line, designed to provide specific fitment and reliable performance for a range of domestic and import vehicles. By adhering to strict manufacturing standards, Walker ensures that each sensor supports proper engine management and emissions compliance.

Common Applications and Issues Addressed

• Restores accurate oxygen sensing for improved fuel efficiency
• Helps resolve check engine light codes related to oxygen sensor failure
• Reduces rough idling and engine hesitation caused by faulty sensors
• Supports proper catalytic converter function by providing correct air-fuel ratio data
• Prevents increased emissions due to sensor degradation

Installation Notes and Tips

• Ensure vehicle compatibility with Buick, Cadillac, Chevrolet, GMC, Hummer, Isuzu, and Saab models listed
• Use appropriate tools for threaded installation to avoid damage to the sensor or exhaust manifold
• Verify connector type matches the vehicle’s wiring harness (radiused polygon female connector)
• Handle wiring harness carefully to prevent damage to the 20-gauge wires
• Follow vehicle manufacturer torque specifications for mounting

Quality Assurance and Warranty

Walker Products Aftermarket oxygen sensors are manufactured to meet stringent quality standards. While specific warranty details for part number 350-34489 may vary, Walker typically offers coverage against defects in materials and workmanship. This ensures dependable performance and peace of mind when replacing your vehicle’s oxygen sensor.