Walker 250-25085 Oxygen Sensor - Upstream

Overview of Walker 250-25085 Oxygen Sensor for Mazda 5

The Walker Products OE 250-25085 oxygen sensor is designed specifically for Mazda 5 models, ensuring precise emission control and optimal engine performance. This heated oxygen sensor features a threaded mounting type and a radiused polygon male connector for secure installation.

• Wiring harness length: 11.34 inches
• Wire gauge measurement: 20 gauge
• Heated sensor type for faster response
• Specific fit for Mazda 5 vehicles
• Five-wire configuration
• Radiused polygon male connector shape
• Thread diameter: 18.0 mm
• Overall length: 14.88 inches
• Threaded mounting type for reliable attachment

Detailed Product Description

The Walker Products OE 250-25085 oxygen sensor is engineered to meet the exact specifications of Mazda 5 vehicles. This heated oxygen sensor uses a five-wire design to provide accurate readings of exhaust gases, which helps the engine control unit adjust fuel mixture for efficient combustion. The 20-gauge wiring ensures durability and reliable signal transmission, while the 11.34-inch wiring harness length offers sufficient reach for installation. The sensor’s radiused polygon male connector and 18.0 mm threaded mounting provide a secure and precise fit, minimizing the risk of leaks or connection issues. With an overall length of 14.88 inches, this sensor is designed for straightforward replacement in the emission control system.

Walker Products OE Brand Line

Walker Products OE is a product line focused on delivering original equipment quality parts that meet or exceed OEM standards. The 250-25085 oxygen sensor is part of this line, ensuring compatibility and performance consistent with factory-installed components. This line emphasizes precise fitment and reliable operation, making it suitable for maintaining the emission control integrity of Mazda 5 vehicles.

Common Applications and Issues Addressed

• Restores accurate oxygen sensing for proper air-fuel mixture
• Helps resolve rough idling caused by faulty sensor readings
• Reduces engine hesitation and poor acceleration
• Prevents increased emissions and failed emissions tests
• Eliminates check engine light triggers related to oxygen sensor faults

Installation Notes and Tips

When installing the Walker 250-25085 oxygen sensor, ensure the engine is cool to avoid burns. Use the correct tools to remove the old sensor and avoid damaging the threaded mounting hole. Verify the connector shape and wire count match the vehicle’s harness before installation. Proper torque on the threaded sensor is essential to prevent exhaust leaks. It is recommended to inspect the wiring harness for damage and replace if necessary to maintain sensor performance.

Quality Assurance and Warranty

Walker Products OE oxygen sensors are manufactured to meet stringent quality standards, ensuring durability and reliable operation in emission control systems. While specific warranty details for part number 250-25085 should be confirmed at the point of purchase, Walker typically offers coverage against defects in materials and workmanship to support long-term use in Mazda 5 vehicles.