TomDirt
FRF Addict
So..... it seems like both the downstream O2 sensors are identical (Bosch part#18069), but there are different Upstream part #'s. The Left is called out as #17323 & the Right as #17321, but apparently they can use the same part according to different vendors. Does anyone know FOR SURE if the upstream sensors are interchangeable for a 6.2L Raptor with a Nov 2011 production date?I got the little fu ckers off. Yea Me!View attachment 422400