Walker 250-24621 Oxygen Sensor - Downstream or Upstream

Overview of Walker 250-24621 Oxygen Sensor for Acura and Honda

The Walker 250-24621 oxygen sensor is designed specifically for select Acura and Honda models, including the Accord, EL, and Prelude. 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 Acura and Honda Accord, EL, and Prelude models
• 16.26-inch wiring harness length with 20-gauge wire for durability
• Threaded mounting type with 18.0 mm thread diameter for secure installation
• Radiused polygon female connector for proper electrical connection
• Overall length of 19.8 inches to accommodate factory fitment requirements

Detailed Features and Specifications

This Walker oxygen sensor (part number 250-24621) features a heated sensor type that allows for faster warm-up times and improved emissions control under various operating conditions. The 4-wire configuration includes two wires for the heating element and two for the sensor signal, ensuring consistent and accurate readings. The wiring harness length of 16.26 inches and 20-gauge wire gauge measurement provide a balance of flexibility and durability, suitable for the specific routing in Acura and Honda vehicles.

The sensor’s threaded mounting type with an 18.0 mm thread diameter allows for a secure and precise fit in the exhaust system. The radiused polygon female connector ensures compatibility with the factory wiring harness, reducing the risk of connection issues. With an overall length of 19.8 inches, this sensor meets the exact fitment requirements for the intended vehicle models.

Walker Products OE Brand Line

The Walker Products OE line focuses on delivering original equipment quality parts that meet or exceed OEM specifications. This oxygen sensor is part of that line, ensuring it matches the fit, form, and function of the original sensor installed in Acura and Honda vehicles. Choosing a Walker Products OE sensor helps maintain factory-level emissions performance and engine efficiency.

Common Applications and Problem Resolution

• Restores accurate air-fuel ratio readings for improved fuel economy
• Resolves check engine light issues related to oxygen sensor faults
• Helps reduce harmful emissions by maintaining proper combustion
• Prevents engine performance problems caused by faulty sensor data
• Supports smooth engine idling and acceleration response

Installation Notes and Tips

When installing the Walker 250-24621 oxygen sensor, ensure the vehicle is cool to avoid burns. Use the correct socket size for the 18.0 mm threaded sensor to prevent damage. Verify the connector’s radiused polygon female shape matches the factory harness before installation. Properly route the 16.26-inch wiring harness to avoid contact with hot exhaust components or moving parts. It is recommended to apply anti-seize compound on the threads to facilitate future removal.

Quality Assurance and Warranty

Walker Products OE oxygen sensors undergo rigorous testing to meet OEM standards for durability and performance. This part is manufactured to provide consistent sensor output and long service life. Warranty coverage details should be confirmed with the distributor or retailer, as they may vary by region.