Walker 250-25090 Oxygen Sensor - Upstream

Overview of Walker 250-25090 Oxygen Sensor for Mazda 6

The Walker Products OE 250-25090 oxygen sensor is designed specifically for Mazda 6 models, 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 and accurate installation.

• Heated oxygen sensor for improved response time
• Specific fit for Mazda 6 vehicles
• 19.21-inch wiring harness length for optimal routing
• 20-gauge wire measurement with 5 wires for reliable signal transmission
• Threaded mounting with 18.0 mm thread diameter
• Radiused polygon female connector for secure connection
• Overall length of 22.76 inches for proper fitment

Detailed Product Description

The Walker Products OE 250-25090 oxygen sensor is engineered to meet the exact specifications required by Mazda 6 models. This heated sensor type ensures faster warm-up times, which helps the engine control unit (ECU) maintain optimal air-fuel mixture and reduce emissions. The sensor includes a 19.21-inch wiring harness with 20-gauge wires and five conductors, providing reliable electrical connectivity and signal accuracy. Its radiused polygon female connector and threaded mounting with an 18.0 mm diameter allow for a secure and precise fit, minimizing installation issues and ensuring consistent sensor performance.

Walker Products OE is a product line focused on delivering original equipment quality parts that meet or exceed OEM standards. This oxygen sensor is part of that line, ensuring compatibility and durability for emission control systems in Mazda 6 vehicles.

Common Applications and Issues Addressed

• Restores accurate oxygen sensing for proper fuel mixture control
• Helps resolve engine performance problems related to faulty sensors
• Reduces emissions by providing precise feedback to the ECU
• Prevents check engine light triggers caused by sensor failure
• Improves fuel efficiency by maintaining correct air-fuel ratios

Installation Notes and Tips

• Ensure the vehicle is cool before removing the old sensor to avoid burns
• Use appropriate tools for the 18.0 mm threaded sensor to prevent damage
• Verify connector compatibility with the radiused polygon female plug
• Route the 19.21-inch wiring harness carefully to avoid contact with hot or moving parts
• Follow torque specifications recommended by Mazda for sensor installation

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 250-25090 may vary, Walker typically offers coverage against defects in materials and workmanship. Always consult product documentation or the supplier for exact warranty terms.