Walker 250-24377 Oxygen Sensor - Downstream or Downstream Front

Overview of Walker 250-24377 Oxygen Sensor for Mazda 626

The Walker Products OE 250-24377 oxygen sensor is designed specifically for the Mazda 626, providing precise emission control and engine performance monitoring. This heated oxygen sensor features a threaded mounting type and a radiused polygon female connector for secure installation.

• Heated oxygen sensor with 4 wires for accurate readings
• Specific fit for Mazda 626 ensuring proper compatibility
• 22.76-inch wiring harness length for flexible installation
• 20 gauge wire measurement for durability and signal integrity
• Thread diameter of 18.0 mm with threaded mounting type
• Radiused polygon female connector for reliable connection
• Overall length of 26.3 inches to fit OEM specifications

Detailed Product Description

The Walker Products OE 250-24377 oxygen sensor is engineered to meet the exact specifications of the Mazda 626. As a heated sensor, it quickly reaches operating temperature to provide accurate oxygen level readings, which are critical for optimal fuel mixture and emissions control. The sensor includes four wires with a 20 gauge measurement, ensuring consistent electrical performance. Its 22.76-inch wiring harness length and 26.3-inch overall length allow for proper routing and fitment within the vehicle’s engine bay. The radiused polygon female connector and 18.0 mm threaded mounting type provide a secure and OEM-compliant installation.

Walker Products OE Brand Line Information

Walker Products OE is a product line focused on delivering original equipment quality parts that meet or exceed factory standards. This oxygen sensor is part of that line, ensuring it matches the fit, form, and function required by Mazda 626 models. The OE line emphasizes precise engineering and reliable performance for emission control components.

Common Applications and Issues Addressed

• Restores accurate air-fuel ratio readings for improved engine efficiency
• Helps resolve check engine light codes related to oxygen sensor failure
• Reduces emissions by providing correct 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 the vehicle is cool before removing the old sensor to avoid burns
• Use appropriate tools to avoid damaging the 18.0 mm threaded sensor
• Verify connector type matches the radiused polygon female connector on the sensor
• Check wiring harness length and routing to prevent strain or damage
• Follow Mazda 626 service manual torque specifications for installation

Quality Assurance and Warranty

The Walker Products OE 250-24377 oxygen sensor is manufactured to meet strict quality standards for durability and performance. While specific warranty details are not provided here, Walker typically offers coverage against defects in materials and workmanship. This sensor is designed to provide reliable operation within the emission control system of the Mazda 626.