Details

• Brand:

  

  

• SKU:

  DY-1503

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

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

• Description:

  This genuine Ford Motorcraft downstream oxygen sensor, cataloged as Sensor Exhaust Gas Oxygen and referenced as the rear or lower HEGO sensor, monitors the exhaust stream after the catalytic converter to verify converter efficiency and fine-tune the powertrain control module's fuel trim. It threads into the exhaust downpipe or converter outlet and reports the oxygen content of post-catalyst gases so the PCM can keep the air-fuel mixture within emissions limits. It fits 2018-2024 Ford F-150 with the 5.0L V8, 2.7L EcoBoost, and 3.3L engines in the right lower and rear positions, along with the Ford Edge 2.7L, and cross-references Ford number JL3Z-9G444-C. A failing downstream sensor commonly triggers a check engine light with catalyst-efficiency or oxygen sensor circuit trouble codes, causes failed emissions tests, rough or hesitant running, and reduced fuel economy as the PCM loses the feedback it needs to trim fueling accurately. Sensors also degrade slowly from heat cycling, contamination, and age, producing lazy switching that a scan tool can reveal. This is the correct Motorcraft-grade sensor with the factory connector and thread pitch, so no splicing or adapters are required. Apply only anti-seize rated for oxygen sensors to the threads if the factory coating is disturbed, keep silicone and sealant off the sensing element, and torque to the Ford specification to prevent exhaust leaks that skew readings. Confirm the exact engine and sensor position on your vehicle before installing, since F-150 applications use several sensors in different upstream and downstream locations.

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