Walker 250-54040 Oxygen Sensor - Upstream

Overview of Walker 250-54040 Oxygen Sensor for Acura and Honda

The Walker 250-54040 oxygen sensor is designed specifically for select Acura and Honda models, including the Civic and CSX. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by monitoring exhaust gases effectively.

• Heated oxygen sensor with 4-wire configuration
• Specific fit for Acura Civic and Honda CSX models
• 14.29-inch wiring harness length for precise installation
• Threaded mounting type with 18.0 mm thread diameter
• Radiused polygon female connector for secure connection
• Wire gauge measurement of 20 for reliable signal transmission
• Overall length of 17.83 inches for proper fitment

Walker Products OE Brand Line Details

The Walker Products OE line focuses on delivering original equipment quality parts that meet or exceed factory specifications. The 250-54040 oxygen sensor is part of this line, ensuring compatibility and performance consistent with the original sensor installed on Acura and Honda vehicles. This product line emphasizes precise fitment and durability, supporting emission control systems effectively.

Product Features and Technical Specifications

This oxygen sensor features a heated sensor type, which allows it to reach operating temperature quickly for accurate readings. The 4-wire design includes two wires for the heater circuit and two for the sensor signal, improving responsiveness and reliability. The wiring harness length of 14.29 inches and overall length of 17.83 inches provide the necessary reach and fit for the specified vehicle models. The sensor mounts via a threaded connection with an 18.0 mm diameter, ensuring secure installation. The radiused polygon female connector is designed to match factory wiring harnesses, facilitating straightforward replacement.

Common Applications and Issues Addressed

• Helps maintain proper air-fuel mixture for efficient combustion
• Reduces harmful emissions by providing accurate exhaust gas data
• Prevents engine performance issues related to faulty oxygen sensors
• Resolves check engine light triggers related to sensor malfunction
• Supports fuel economy by ensuring sensor accuracy

Installation Notes and Tips

When installing the Walker 250-54040 oxygen sensor, ensure the vehicle is cool to avoid burns. Use appropriate tools to remove the old sensor and avoid damaging the wiring harness or connector. Verify the connector shape and gender match the factory harness before installation. Thread the sensor carefully to avoid cross-threading and torque to manufacturer specifications. Testing the sensor after installation can confirm proper operation.

Quality Assurance and Warranty

Walker Products OE oxygen sensors are manufactured to meet strict quality standards, ensuring reliable performance and durability. While specific warranty details for part number 250-54040 should be confirmed with the supplier, Walker typically offers coverage against defects in materials and workmanship. This oxygen sensor is engineered to provide consistent operation within emission control systems for Acura Civic and Honda CSX vehicles.