Walker 250-24286 Oxygen Sensor - Downstream Rear or Downstream Right

Overview of Walker Products OE Oxygen Sensor 250-24286

The Walker Products OE Oxygen Sensor 250-24286 is designed specifically for select INFINITI and Nissan vehicles, including the I30, Maxima, Pathfinder, and QX4 models. This heated oxygen sensor ensures accurate emission control and optimal engine performance by monitoring exhaust gases effectively.

• Heated oxygen sensor with 4-wire design for precise readings
• Specific fit for INFINITI and Nissan I30, Maxima, Pathfinder, and QX4
• 37.13-inch wiring harness length for flexible installation
• Threaded mounting type with 18.0 mm thread diameter
• Radiused polygon male connector for secure electrical connection
• Wire gauge measurement of 20 for durability and signal integrity
• Overall length of 40.67 inches to accommodate vehicle-specific routing

Detailed Product Description

This Walker Products OE oxygen sensor (part number 250-24286) is engineered to meet the exact specifications of your INFINITI and Nissan vehicles, including the I30, Maxima, Pathfinder, and QX4. Featuring a heated sensor type, it quickly reaches operating temperature to provide accurate oxygen level readings, which are critical for maintaining proper air-fuel mixture and reducing emissions. The sensor includes a 4-wire configuration with a radiused polygon male connector, ensuring a reliable electrical connection and compatibility with the vehicle’s wiring harness. The 37.13-inch wiring harness length and 40.67-inch overall length provide sufficient reach for installation without modification. The threaded mounting type with an 18.0 mm diameter allows for secure and straightforward installation in the exhaust system.

Walker Products OE Brand Line Information

The Walker Products OE line focuses on delivering original equipment quality parts designed to meet or exceed factory specifications. This oxygen sensor is part of that line, ensuring compatibility and performance consistent with the original sensor installed on INFINITI and Nissan vehicles. Using a Walker Products OE sensor helps maintain emission control system integrity and supports vehicle compliance with environmental standards.

Common Applications and Issues Addressed

• Restores accurate oxygen sensing for proper engine management
• Helps resolve rough idling and poor fuel economy caused by faulty sensors
• Reduces emissions by ensuring correct air-fuel mixture adjustments
• Prevents check engine light triggers related to oxygen sensor faults
• Improves overall engine performance and drivability

Installation Notes and Tips

Installation of the Walker Products OE oxygen sensor 250-24286 requires removal of the old sensor from the exhaust manifold or pipe. The threaded mounting type with an 18.0 mm diameter allows for direct replacement without modification. Ensure the radiused polygon male connector is securely connected to the vehicle’s wiring harness. Avoid damaging the wiring harness during installation and verify the sensor’s wiring gauge and length match the vehicle’s requirements. It is recommended to use anti-seize compound on the threads to facilitate future removal.

Quality Assurance and Warranty

Walker Products OE oxygen sensors are manufactured to meet strict quality standards and undergo rigorous testing to ensure durability and performance. This part number 250-24286 is backed by Walker’s quality assurance protocols. Please refer to Walker’s official warranty documentation for specific coverage details.