Walker 250-21004 Oxygen Sensor - Upstream

Overview of Walker Products OE Oxygen Sensor 250-21004

The Walker Products OE Oxygen Sensor 250-21004 is designed for specific vehicle applications including Ford, Jeep, and Mercury models. This non-heated oxygen sensor features a threaded mounting type and a radiused polygon female connector, ensuring precise fit and reliable performance in emission control systems.

• Wiring harness length: 13.31 inches
• Wire gauge measurement: 20 gauge
• Sensor type: Non heated
• Specific fit for select Ford, Jeep, and Mercury vehicles
• Connector shape: Radiused polygon, female gender
• Thread diameter: 18.0 mm
• Overall length: 16.85 inches
• Mounting type: Threaded
• Single wire quantity

Detailed Product Description

This oxygen sensor, part number 250-21004, is engineered to meet the exact specifications required by certain Ford, Jeep, and Mercury models such as the Bronco, Cherokee, F-150, Grand Wagoneer, and Taurus. The sensor’s non-heated design and 20 gauge wire ensure accurate oxygen level readings for optimal engine performance and emissions control. The 13.31-inch wiring harness length and radiused polygon female connector provide a secure and precise connection, while the 18.0 mm threaded mounting type allows for straightforward installation. The overall length of 16.85 inches accommodates proper placement within the exhaust system.

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 from the Walker Products OE line is manufactured to provide reliable emission control sensor performance, ensuring compatibility and durability for the specified Ford, Jeep, and Mercury vehicles. Using parts from this line helps maintain factory-level functionality and emission compliance.

Common Applications and Issues Addressed

• Replacement for faulty or failing oxygen sensors in Ford Bronco and F-150 models
• Restores accurate air-fuel mixture readings in Jeep Cherokee and Grand Wagoneer
• Helps resolve engine performance issues related to incorrect oxygen sensor data
• Supports emission system compliance in Mercury Sable and Taurus vehicles
• Prevents check engine light triggers caused by sensor malfunctions

Installation Notes and Tips

• Ensure the sensor thread diameter of 18.0 mm matches the vehicle’s exhaust port
• Use appropriate tools to avoid damaging the radiused polygon female connector
• Verify wiring harness length of 13.31 inches is sufficient for your vehicle’s routing
• Follow vehicle-specific service manual instructions for sensor replacement
• Check for proper torque on the threaded mounting to prevent exhaust leaks

Quality Assurance and Warranty

The Walker Products OE oxygen sensor 250-21004 is manufactured to meet stringent quality standards for emission control sensors. While specific warranty details may vary, Walker typically offers coverage against defects in materials and workmanship to ensure dependable operation. Using this sensor supports maintaining emission compliance and engine efficiency in compatible Ford, Jeep, and Mercury vehicles.