Walker 350-33065 Oxygen Sensor - Upstream

Overview of Walker Oxygen Sensor for Subaru Legacy

The Walker 350-33065 oxygen sensor is designed specifically for Subaru Legacy models, ensuring precise emission control and optimal engine performance. This heated oxygen sensor features a threaded mounting type and a radiused polygon male connector for secure installation.

• Wiring harness length: 4.45 inches
• Wire gauge measurement: 20 gauge
• Heated sensor type for faster response
• Specific fit for Subaru Legacy
• Three-wire configuration
• Radiused polygon male connector shape
• Thread diameter: 18.0 mm
• Overall length: 7.99 inches
• Threaded mounting type for reliable attachment

Detailed Product Description

This Walker oxygen sensor (part number 350-33065) is engineered to meet the exact specifications required by Subaru Legacy vehicles. The heated sensor design allows for quicker warm-up times, improving fuel efficiency and reducing emissions shortly after engine start. The three-wire setup supports accurate signal transmission, while the 20-gauge wiring ensures durability and resistance to electrical interference. The radiused polygon male connector provides a secure and precise connection, minimizing the risk of disconnection or signal loss. With a threaded mounting type and an 18.0 mm thread diameter, installation is straightforward and compatible with the factory mounting points.

Walker Products Aftermarket offers a comprehensive line of emission control components designed to meet or exceed OEM standards. This product line focuses on delivering reliable, vehicle-specific sensors that maintain emission compliance and engine performance for a wide range of makes and models, including Subaru Legacy.

Common Applications and Issues Addressed

• Restores accurate oxygen sensing for proper air-fuel mixture control
• Helps resolve rough idling and engine hesitation
• Reduces excessive fuel consumption caused by faulty sensors
• Prevents check engine light triggers related to oxygen sensor faults
• Supports emission system compliance and reduces harmful exhaust gases

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; follow manufacturer torque specifications
• Inspect wiring harness for damage or corrosion prior to installation

Quality Assurance and Warranty

Walker oxygen sensors are manufactured to meet strict quality standards, ensuring reliable performance and durability. The 350-33065 sensor undergoes rigorous testing to comply with emission control requirements. Warranty coverage details are provided by Walker Products Aftermarket and typically include protection against defects in materials and workmanship for a specified period.