Originally Posted by 19COBRA93
So to clarify; F57B-14B192-AA will be on the actual part. The bag it comes in, or the invoice you're billed on through the Ford dealer will be F5TZ-14N089-B. They're the same exact thing, both numbers cross right over to the other. If that makes sense.
Just to clarify, are the relays identical for front and rear? Are the R18 and R19 the very same part number listed above?
Thanks and pardon me if I missed it earlier.
** Edit ** Yes they are indeed identical. Try simply swapping the Front and Rear relay (assuming you don't have the single combined unit) before you go get a relay. Very easy and quick to test!