Walker 350-34148 Oxygen Sensor - Downstream

Overview of Walker 350-34148 Oxygen Sensor for Kia and Mazda

The Walker 350-34148 oxygen sensor is designed specifically for select Kia and Mazda models, including the Protege and Sephia. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by monitoring exhaust gases effectively.

• Heated oxygen sensor with 4-wire design for precise readings
• Specific fit for Kia Protege and Mazda Sephia models
• Threaded mounting type with 18.0 mm thread diameter
• 11.54-inch wiring harness length with radiused polygon male connector
• 20 gauge wire for durability and reliable signal transmission
• Overall length of 15.08 inches for proper installation depth

Detailed Features and Specifications

This Walker oxygen sensor (part number 350-34148) features a heated sensor type that allows for faster warm-up times and improved accuracy in emissions monitoring. The sensor includes a 4-wire configuration, which supports both the heating element and signal wires, ensuring consistent performance. The wiring harness length of 11.54 inches provides sufficient reach for installation in the exhaust system of Kia Protege and Mazda Sephia vehicles. The connector is a radiused polygon shape with a male gender, designed to match factory wiring harnesses for a secure connection. The sensor mounts via a threaded fitting with an 18.0 mm diameter, compatible with the original equipment specifications. The wire gauge measurement of 20 ensures durability and resistance to electrical interference.

Walker Products Aftermarket Line

Walker Products Aftermarket offers a range of emission control components designed to meet or exceed OEM standards. This product line focuses on providing reliable, vehicle-specific parts that maintain proper emissions system function. The 350-34148 oxygen sensor is part of this line, delivering precise fitment and performance for Kia and Mazda models requiring a heated oxygen sensor with specific wiring and connector configurations.

Common Applications and Issues Addressed

• Restores accurate oxygen sensing for proper air-fuel mixture control
• Helps resolve check engine light codes related to oxygen sensor failure
• Improves fuel efficiency by providing correct exhaust gas readings
• Reduces harmful emissions by ensuring proper catalytic converter operation
• Prevents rough idling and engine performance issues caused by faulty sensors

Installation Notes and Tips

When installing the Walker 350-34148 oxygen sensor, ensure the vehicle is compatible with this specific part number and fitment for Kia Protege and Mazda Sephia models. Use proper tools to avoid damaging the threaded sensor fitting. Verify the connector shape and gender match the vehicle’s wiring harness before installation. It is recommended to inspect the wiring harness for any damage and replace if necessary to maintain sensor performance.

Quality Assurance and Warranty

Walker Products Aftermarket oxygen sensors are manufactured to meet stringent quality standards for durability and accuracy. This part undergoes rigorous testing to ensure reliable operation in emission control systems. While specific warranty details are not provided here, Walker typically offers coverage against defects in materials and workmanship. Consult product documentation or the manufacturer for exact warranty terms.