Walker 250-24156 Oxygen Sensor - Upstream

Overview of Walker 250-24156 Oxygen Sensor for Toyota Vehicles

The Walker 250-24156 oxygen sensor is designed specifically for Toyota Celica and MR2 models, ensuring precise emission control and optimal engine performance. This heated oxygen sensor features a flange mount and a radiused polygon male connector for secure installation.

• Heated oxygen sensor with 4 wires for accurate readings
• Specific fit for Toyota Celica and MR2 models
• Wiring harness length of 10.35 inches and overall length of 13.9 inches
• 20 gauge wire for reliable signal transmission
• Flange mount with 18.0 mm thread diameter for secure attachment
• Radiused polygon male connector for proper connection

Detailed Product Features and Specifications

This Walker Products OE oxygen sensor (part number 250-24156) is engineered to meet the exact specifications required by Toyota Celica and MR2 vehicles. The sensor type is heated, which allows it to reach operating temperature quickly, improving emission control efficiency. It includes four wires with a 20 gauge measurement, providing stable and accurate sensor signals. The wiring harness length is 10.35 inches, while the overall length of the sensor is 13.9 inches, ensuring proper fitment within the exhaust system. The flange mount design with an 18.0 mm thread diameter offers a secure and leak-free installation. The connector features a radiused polygon shape with a male gender, designed to match the vehicle’s factory wiring harness.

Walker Products OE Brand Line Information

The Walker Products OE line focuses on delivering original equipment quality parts that meet or exceed OEM standards. This oxygen sensor is part of that line, providing a direct replacement solution for Toyota Celica and MR2 models. The OE designation ensures compatibility and performance consistent with factory-installed components, supporting reliable emission control and engine management.

Common Applications and Issues Addressed

• Restores accurate oxygen sensing for proper air-fuel mixture control
• Helps resolve check engine light triggers related to oxygen sensor faults
• Improves fuel efficiency by providing correct feedback to the engine control unit
• Reduces harmful emissions by maintaining optimal combustion
• Prevents rough idling and engine hesitation caused by faulty sensors

Installation Notes and Tips

When installing the Walker 250-24156 oxygen sensor, ensure the vehicle is cool to avoid burns. Use appropriate tools to remove the old sensor and avoid damaging the flange mount threads. Confirm the connector matches the radiused polygon male shape for a secure connection. It is recommended to apply anti-seize compound on the threads to facilitate future removal. Verify the wiring harness length and sensor orientation before final tightening to ensure proper fitment in Toyota Celica and MR2 exhaust systems.

Quality Assurance and Warranty

Walker Products OE oxygen sensors are manufactured to meet strict quality standards, ensuring durability and reliable performance. While specific warranty details for part number 250-24156 may vary, Walker typically offers coverage against defects in materials and workmanship. Always consult product documentation or the supplier for exact warranty terms.