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Message: <blockquote data-quote="MY97GT" data-source="post: 299058" data-attributes="member: 10138"><p>Apparently with the arftermarket O2's they are all 1 part #. Bosch is 13127 I believe. I just replaced one on my 97 this weekend. Ford has all different part #'s because the connectors are color coded and dirrectional. The bosches are about $40 cheaper than Ford. I was having a problem with my car running like crap and when I put in the bosch O2 it fixed my problem. Do you have an off-road pipe? If you do, you need to either put MIL eliminators or tune out the rear O2's anyway.</p></blockquote><p></p>