Walker 250-21010 Oxygen Sensor - Upstream

Overview of Walker 250-21010 Oxygen Sensor

The Walker 250-21010 oxygen sensor is designed for specific vehicle applications including Ford Escort, Kia Sephia, Mazda MX-3, and Mercury Tracer models. This non-heated sensor features a threaded mounting type and a radiused polygon female connector, ensuring precise fit and reliable emission control performance.

• Wiring harness length: 16.46 inches
• Wire gauge measurement: 20 gauge
• Sensor type: Non-heated oxygen sensor
• Specific fit for select Ford, Kia, Mazda, and Mercury models
• Connector shape: Radiused polygon with female gender
• Thread diameter: 18.0 mm
• Overall length: 20.0 inches
• Threaded mounting for secure installation
• Single wire configuration

Walker Products OE Line Details

This oxygen sensor is part of the Walker Products OE line, which focuses on providing original equipment quality parts designed to meet or exceed factory specifications. The Walker Products OE line ensures compatibility and durability for emission control components, making it a reliable choice for maintaining vehicle emissions systems in Ford, Kia, Mazda, and Mercury vehicles.

Product Description and Specifications

The Walker 250-21010 oxygen sensor is a non-heated sensor specifically engineered for emission control systems in vehicles such as the Ford Escort, Kia Sephia, Mazda MX-3, and Mercury Tracer. It features a 16.46-inch wiring harness and a 20-gauge wire, providing adequate length and thickness for proper signal transmission. The sensor’s radiused polygon female connector and 18.0 mm threaded mounting ensure a secure and precise fit. With an overall length of 20.0 inches and a single wire configuration, this sensor is designed for specific fitment rather than universal application.

Common Applications and Issues Addressed

• Helps maintain optimal air-fuel mixture for efficient combustion
• Reduces harmful emissions by accurately monitoring oxygen levels
• Prevents engine performance issues related to faulty oxygen sensors
• Addresses check engine light triggers related to emission control
• Supports compliance with emission regulations for compatible vehicles

Installation Notes and Tips

When installing the Walker 250-21010 oxygen sensor, ensure the threaded mounting is properly tightened to the manufacturer’s torque specifications to avoid leaks. The radiused polygon female connector should be securely connected to the vehicle’s wiring harness to maintain signal integrity. This sensor is designed for specific fitment on Ford Escort, Kia Sephia, Mazda MX-3, and Mercury Tracer models, so verify compatibility before installation.

Quality Assurance and Warranty

Walker Products OE oxygen sensors are manufactured to meet original equipment standards, ensuring reliable performance and durability. While specific warranty details for part number 250-21010 may vary, Walker typically offers coverage against defects in materials and workmanship. Refer to the product documentation or manufacturer for exact warranty terms.