Walker 350-34298 Oxygen Sensor - Upstream

Overview of Walker 350-34298 Oxygen Sensor

The Walker 350-34298 oxygen sensor is designed specifically for select Hyundai and Mitsubishi models, including the Elantra, Excel, Precis, and Sonata. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by providing precise air-fuel mixture data to the vehicle's engine management system.

• Heated oxygen sensor with 4-wire design for reliable operation
• Specific fit for Hyundai Elantra, Sonata and Mitsubishi Excel, Precis models
• Threaded mounting type with 18.0 mm thread diameter for secure installation
• 10.35-inch wiring harness length with radiused polygon female connector
• 20 gauge wire for durability and consistent signal transmission
• Overall length of 13.9 inches for proper fitment in exhaust system

Detailed Product Description

This Walker oxygen sensor (part number 350-34298) features a heated sensor element that allows for faster warm-up times and improved emissions control under various operating conditions. The 4-wire configuration includes two wires for the heater circuit and two for the sensor signal, ensuring accurate and stable readings. The sensor’s 18.0 mm threaded mounting and radiused polygon female connector provide a secure and precise fit, reducing the risk of exhaust leaks or electrical connection issues. With a wiring harness length of 10.35 inches and an overall length of 13.9 inches, this sensor is engineered to fit the exhaust systems of Hyundai Elantra, Sonata, and Mitsubishi Excel and Precis models without modification.

Walker Products Aftermarket is known for delivering reliable emission control components that meet or exceed OEM specifications. This product line focuses on providing direct-fit sensors that simplify installation and maintain vehicle emissions compliance.

Applications and Common Issues Addressed

• Restores proper air-fuel ratio monitoring for Hyundai Elantra and Sonata, Mitsubishi Excel and Precis
• Resolves engine performance problems related to faulty oxygen sensors
• Helps correct rough idling and poor fuel economy caused by sensor failure
• Reduces emissions by ensuring accurate sensor feedback to the engine control unit
• Prevents check engine light triggers related to oxygen sensor faults

Installation Notes and Tips

• Ensure the vehicle is cool before sensor removal to avoid burns
• Use appropriate oxygen sensor socket for threaded removal and installation
• Verify connector type matches the vehicle harness before installation
• Do not over-tighten the sensor; torque to manufacturer specifications
• Inspect wiring harness for damage and secure connections to prevent signal loss

Quality Assurance and Warranty

Walker Products Aftermarket oxygen sensors are manufactured to meet strict quality standards and undergo rigorous testing to ensure durability and performance. While specific warranty details may vary, Walker typically offers coverage against defects in materials and workmanship to provide confidence in product reliability.