Original Equipment Manufacturer
Front Oxygen Sensor GD
This sensor measures the oxygen content in the exhaust system pre catalyst. An oxygen sensor (or AF sensor) can establish the air-fuel ratio by measuring the excess oxygen left over from the combustion process. The front air-fuel (AF) sensor is used by the ECU for fuel calculations during closed loop fueling.
A faulty sensor can result in poor engine operation or stalling and may set a CEL.
Manufacturer Part Nos.: 22641AA450
NOTE: OEM (Original Equipment Manufacturer) indicates this part originated from the supplier to Subaru that manufactured the genuine part. It is identical to the Subaru part but without the Subaru packaging and markings on the part may differ.
What it fits:
- EJ257 MY04-07
- WRX EJ255 MY06-07
- Forester EJ255 MY04-08
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Usually ready in 24 hoursPairs well with
Front Oxygen Sensor GD
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