anyone know of an interchangeable Ford part #??? Thanks

 

You would be better off doing a search by DENSO part#. eBay is a competitive place to get this.

DENSO 234-4798 for lower (narrow band)
DENSO 234-9029 for upper (wide band)

Did you have codes? The heater circuit failed on 2 of mine. Clear-cut code, pointing to the right part. A replacement fixed it.

Best of luck, keep us posted.

 

Thanks for the info. As it turns out, apparently there was never an actual code showing ox sensor function issues, just an opinion from the tester that it could be the cause of the misfires and rough engine. Solved the misfire problem and check engine light is out, so I think I'm back in business. Will keep your note for future reference. You may want to look at my original post "engine misfire", to which to also responded with very useful information.