Gary Lewis wrote
I can neither confirm nor deny as the PN doesn't show in the late MPC. Would have to cross reference it to find out, but can later today if anyone is interested.
No need, according to Bill on a thread from FTE, this was only used on 1980-1982 F-Series trucks with the C6 transmission.
"EOTZ-15520-B .. Backup Lamp Switch (Motorcraft SW-1579) / Marked with ID number: E0TP-15520-BC / 1980/82 F100/350 & Bronco C6"
The C4 and AOD used different versions.