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21311AA071
An oxygen sensor (or AF sensor) can establish the air-fuel ratio by measuring the excess oxygen left over from the combustion process
This provides near zero compliance under high suspension loads with low friction and smooth movement in all axes of rotation
Bolts to the block case
EJ207 MY10-20
Oil Cooler GD Flash Tuner 21311AA071Replacement water oil heat exchanger (oil cooler). Located between the oil filter and block. Supplied with sealing o ring. It is suggested that the oil cooler be replaced after a bearing failure due to the difficulty in completely removing any metal debris from inside the cooler. Available as Genuine Subaru or OEM (Original Equipment Manufacturer identical to genuine part but without Subaru packaging). Manufacturer Part No: 21311AA051 What it fits:
