Details

• Brand:

  

  

• SKU:

  HC3Z-9G444-B

• Positions: Rear Right Rear, Rear Right Right, Rear Right Lower, Right Rear, Right, Right Lower
• Other Names:

  Lower Oxygen Sensor, Rear Oxygen Sensor, Sensor Exhaust Gas Oxygen, DY1384

• Description:

  Genuine Ford oxygen sensor for 17-22 E-150, E-350 Super Duty, and F-350 Super Duty vehicles, per the dealer catalog cross-reference. The oxygen sensor measures the oxygen content in the exhaust stream and is the feedback signal the engine control module uses to fine-tune the air-fuel ratio for both emissions compliance and fuel economy. When the sensor ages or fails the engine commonly runs slightly rich or lean depending on the failure mode, fuel economy drops, and the check engine light illuminates with O2 sensor-related diagnostic codes. The Ford-supplied sensor carries the correct electrical connector and harness pigtail for the application and matches the original heater circuit specification so the sensor reaches operating temperature on the same warm-up schedule as the factory part. Replacement is straightforward with the engine cold and an oxygen sensor socket; the threaded boss in the exhaust pipe is the only critical surface that must be clean before the new sensor goes in.

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