Reverse backup switch.  New in original box. Fits pretty much all/most front wheel drive manual transmissions except the 5spd trans in the Maserati TC.   Fits most 2.2 and 2.5 Turbo cars with 5spd manuals from like 1986-1993.  (including Iroc R/T and Spirit R/T)
 
If you need that switch, check our Maserati 16v section.