Walker 250-21053 Oxygen Sensor - Upstream, Upstream Front or Upstream Rear

Overview of Walker Products OE Oxygen Sensor 250-21053

The Walker Products OE Oxygen Sensor 250-21053 is designed specifically for select Geo, Lexus, and Toyota vehicles, including the Camry, Celica, Corolla, ES300, and Prizm models. This non-heated oxygen sensor provides precise emission control monitoring to help maintain optimal engine performance and fuel efficiency.

• Wiring harness length: 10.35 inches
• Wire gauge measurement: 20 gauge
• Sensor type: Non heated
• Specific fit for select vehicle models
• Single wire quantity
• Radiused polygon connector shape with male connector gender
• Thread diameter: 18.0 mm
• Overall length: 13.9 inches
• Flange mount installation type

Walker Products OE Brand Line Details

The Walker Products OE line focuses on delivering original equipment quality parts that meet or exceed factory specifications. This oxygen sensor from the Walker Products OE series ensures compatibility and reliable performance for emission control systems in specific Geo, Lexus, and Toyota vehicles. The product line emphasizes precise fitment and durability, supporting proper engine management and emissions compliance.

Product Description and Specifications

The Walker 250-21053 oxygen sensor is a non-heated sensor designed for flange mount installation. It features a 10.35-inch wiring harness with a 20-gauge wire, providing a robust electrical connection through a radiused polygon-shaped male connector. The sensor’s thread diameter measures 18.0 mm, and the overall length is 13.9 inches, ensuring proper fitment in the exhaust system of compatible vehicles. This sensor is engineered for specific fitment, making it suitable for models such as the Toyota Camry, Corolla, Celica, Lexus ES300, and Geo Prizm.

Common Applications and Issues Addressed

• Helps maintain accurate air-fuel mixture readings for efficient combustion
• Prevents engine performance issues related to faulty oxygen sensors
• Supports emission control compliance by monitoring exhaust gases
• Reduces risk of increased fuel consumption due to sensor failure
• Assists in preventing check engine light triggers related to oxygen sensor faults

Installation Notes and Tips

When installing the Walker 250-21053 oxygen sensor, ensure the flange mount is securely fastened to prevent exhaust leaks. Verify the connector’s radiused polygon shape and male gender match the vehicle’s wiring harness for proper connection. Use appropriate tools to avoid damaging the 18.0 mm threaded sensor during installation. It is recommended to inspect the wiring harness length of 10.35 inches to confirm compatibility with the vehicle’s exhaust routing.

Quality Assurance and Warranty

Walker Products OE oxygen sensors are manufactured to meet original equipment standards, ensuring reliable performance and durability. This part number 250-21053 undergoes rigorous quality control to maintain consistency and fitment accuracy. While specific warranty details may vary, Walker typically offers coverage against manufacturing defects to support long-term use in compatible Geo, Lexus, and Toyota vehicles.