Walker 250-21059 Oxygen Sensor - Upstream

Overview of Walker 250-21059 Oxygen Sensor for Toyota Vehicles

The Walker 250-21059 oxygen sensor is designed specifically for Toyota Celica and Cressida models. This non-heated sensor provides accurate emissions control data to help maintain engine performance and reduce harmful exhaust emissions.

• Wiring harness length: 23.35 inches
• Wire gauge measurement: 20 gauge
• Sensor type: Non heated
• Specific fit for Toyota Celica and Cressida
• Single wire configuration
• Radiused polygon female connector
• Thread diameter: 18.0 mm
• Overall length: 26.89 inches
• Flange mount installation

Walker Products OE Line Details

This oxygen sensor is part of the Walker Products OE line, which focuses on providing original equipment quality parts. The OE line ensures that components like the 250-21059 oxygen sensor meet strict manufacturing standards and fitment requirements, matching the specifications of the original sensor installed on Toyota Celica and Cressida vehicles.

Product Description and Specifications

The Walker 250-21059 oxygen sensor features a non-heated design with a single 20-gauge wire, making it suitable for specific Toyota models requiring this configuration. The sensor includes a radiused polygon female connector for secure electrical connection and a flange mount for stable installation. With an 18.0 mm thread diameter and an overall length of 26.89 inches, this sensor fits precisely in the designated mounting location. The wiring harness length of 23.35 inches provides adequate reach for proper connection without excess slack.

Common Applications and Issues Addressed

• Helps maintain optimal air-fuel mixture for Toyota Celica and Cressida engines
• Reduces emissions by providing accurate oxygen level readings
• Prevents engine performance issues related to faulty oxygen sensors
• Addresses check engine light triggers caused by sensor failure
• Supports efficient fuel consumption and engine operation

Installation Notes and Tips

When installing the Walker 250-21059 oxygen sensor, ensure the flange mount is securely fastened to prevent exhaust leaks. Verify the radiused polygon female connector is properly engaged to avoid electrical connection issues. Use appropriate tools to avoid damaging the 18.0 mm threaded sensor body. Confirm compatibility with Toyota Celica and Cressida models before installation to ensure proper fitment.

Quality Assurance and Warranty

Walker Products OE parts, including the 250-21059 oxygen sensor, are manufactured to meet original equipment standards. This ensures reliable performance and durability consistent with factory specifications. While specific warranty details are not provided here, Walker typically offers coverage against manufacturing defects. Refer to the product documentation or manufacturer for exact warranty terms.