Walker 350-33037 Oxygen Sensor - Downstream, Downstream Front or Upstream

Overview of Walker 350-33037 Oxygen Sensor

The Walker 350-33037 oxygen sensor is designed specifically for select Nissan and INFINITI models, including the 200SX, Altima, I30, Maxima, and Sentra. This heated oxygen sensor provides accurate emissions monitoring to help maintain engine performance and comply with emission standards.

• Heated oxygen sensor with 3-wire design
• Specific fit for Nissan and INFINITI vehicles
• 16.46-inch wiring harness length for optimal installation
• Threaded mounting type with 12.0 mm thread diameter
• Radiused polygon female connector for secure connection
• 20-gauge wire for reliable signal transmission
• Overall length of 20.0 inches for proper fitment

Detailed Product Description

This Walker Products Aftermarket oxygen sensor (part number 350-33037) is engineered to meet the exact specifications of Nissan and INFINITI vehicles such as the 200SX, Altima, I30, Maxima, and Sentra. Featuring a heated sensor type, it ensures faster warm-up times and more accurate oxygen level readings under various operating conditions. The sensor includes a 16.46-inch wiring harness and uses 20-gauge wire to maintain signal integrity. Its radiused polygon female connector and threaded mounting type with a 12.0 mm thread diameter provide a secure and precise fit, reducing the risk of leaks or connection issues. The overall length of 20.0 inches allows for proper placement within the exhaust system.

The Walker Products Aftermarket line focuses on delivering reliable emission control components that meet or exceed OEM standards. This product line is designed to provide specific fitment solutions for a range of vehicles, ensuring compatibility and performance without the need for modifications.

Common Applications and Issues Addressed

• Restores accurate air-fuel mixture readings for improved engine efficiency
• Helps resolve check engine light triggers related to oxygen sensor faults
• Reduces emissions by providing precise feedback to the engine control unit
• Prevents rough idling and poor fuel economy caused by faulty sensors
• Supports proper catalytic converter function by monitoring exhaust gases

Installation Notes and Tips

• Ensure vehicle compatibility with Nissan 200SX, Altima, I30, Maxima, or Sentra before installation
• Use appropriate tools to avoid damaging the 12.0 mm threaded mounting
• Verify connector orientation matches the radiused polygon female connector for secure fit
• Inspect wiring harness length (16.46 inches) to confirm routing without tension or interference
• Allow the sensor to reach operating temperature for accurate readings after installation

Quality Assurance and Warranty

Walker Products Aftermarket oxygen sensors are manufactured to meet stringent quality standards, ensuring durability and reliable performance. While specific warranty details for part number 350-33037 should be confirmed with the supplier, Walker typically offers coverage against defects in materials and workmanship to support long-term use in Nissan and INFINITI vehicles.