- Hi all, Could I please enlist the help of my fellow message board members in finding a part number ? Or even better yet, finding the part itself. I am looking for a set of four center caps for the 12" steel wheel found on the 1983-1993 Nissan Micra. I can not find them anywhere on ebay and I really need them to finish a wheel project on my 1987 Nissan Be-1. Thank you so much and any help would be appreciated. Mark