Details

• Brand:

  

  

• SKU:

  DY-1627

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

  Motorcraft™ Oxygen Sensor, Motorcraft™ Lower Oxygen Sensor, Sensor Exhaust Gas Oxygen

• Description:

  This genuine Ford Motorcraft downstream oxygen sensor, listed in the Ford catalog as Sensor Exhaust Gas Oxygen and described as the rear or lower HEGO sensor, mounts in the exhaust after the catalytic converter to measure post-catalyst oxygen content and confirm converter performance for the powertrain control module. It provides the feedback the PCM uses to monitor catalyst efficiency and refine long- and short-term fuel trim. This sensor spans several EcoBoost and turbocharged Ford applications from roughly 2016 through 2023, including F-150 with the 3.5L and 3.5L twin-turbo EcoBoost V6, Expedition and Navigator in the downstream position, and Mustang with the 2.3L EcoBoost engine, which is why it is best described as a multi-vehicle service part. A degraded downstream sensor typically sets a check engine light with catalyst-efficiency below threshold or oxygen sensor circuit codes, may cause emissions test failures, and can contribute to slightly reduced fuel economy and inconsistent idle. Sensors lose responsiveness over time from thermal cycling and exhaust contamination, producing sluggish switching that shows up on a scan tool graph even before a hard code appears. This Motorcraft-grade unit arrives with the correct factory connector and thread form so it plugs directly into the harness without splicing. If the factory thread coating is disturbed, use only oxygen-sensor-safe anti-seize, keep silicone and solvents away from the sensing tip, and tighten to the Ford torque specification to avoid exhaust leaks that corrupt readings. Verify the engine, model year, and exact sensor location on your vehicle before ordering, since these platforms use multiple sensors in distinct upstream and downstream positions.

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