Walker 250-25055 Oxygen Sensor - Upstream

Overview of Walker 250-25055 Oxygen Sensor for Honda Civic and Insight

The Walker Products OE 250-25055 oxygen sensor is designed specifically for Honda Civic and Insight models. This heated oxygen sensor features a threaded mounting type and a radiused polygon male connector, ensuring precise fitment and reliable performance.

• Heated oxygen sensor for accurate emissions control
• Specific fit for Honda Civic and Insight vehicles
• Threaded mounting with 18.0 mm thread diameter
• 14.29-inch wiring harness length with 5 wires of 20 gauge
• Radiused polygon male connector for secure connection
• Overall length of 17.83 inches for proper installation

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 250-25055 oxygen sensor is part of this line, providing a direct replacement solution engineered to maintain the emissions system integrity of Honda Civic and Insight vehicles.

Product Description and Specifications

This oxygen sensor is a heated type, which helps the sensor reach operating temperature quickly for improved emissions monitoring. It includes a 14.29-inch wiring harness with five 20-gauge wires, allowing for accurate signal transmission. The sensor’s connector features a radiused polygon shape with a male gender, designed to match the factory harness. The threaded mounting type with an 18.0 mm diameter ensures a secure and leak-free installation. With an overall length of 17.83 inches, this sensor fits precisely in the designated location on compatible Honda models.

Common Applications and Issues Addressed

• Restores proper oxygen sensing for fuel mixture adjustments
• Helps resolve check engine light codes related to O2 sensor failure
• Improves emissions system performance and compliance
• Reduces rough idling and poor fuel economy caused by faulty sensors
• Prevents damage to catalytic converters from incorrect air-fuel ratios

Installation Notes and Tips

When installing the Walker 250-25055 oxygen sensor, ensure the vehicle is cool to avoid burns. Use an oxygen sensor socket or appropriate tool to remove the old sensor carefully. Verify the connector type matches the factory harness before installation. Thread the sensor by hand initially to avoid cross-threading, then tighten to manufacturer torque specifications. Inspect wiring for damage and secure the harness to prevent strain.

Quality Assurance and Warranty

Walker Products OE oxygen sensors are manufactured to meet strict quality standards for durability and performance. The 250-25055 part number undergoes rigorous testing to ensure compatibility with Honda Civic and Insight models. While specific warranty details are not provided here, Walker typically offers coverage against defects in materials and workmanship.