[APGEcho]

I ordered a rear o2 sensor that said it was for a MY99 2.5... when it came in, it was only a 3 prong, and the one currently on my car is a 4 prong... what do I do? They sent me the part number 22690AA350

 

[Joshua]

22690AA640 is the correct part number...

22690AA350 is a front O2 sensor #

good source for part #s and parts is www.subarupartsforyou.com