strong text There is another number stamped on my old cap off my Buick Lesabre 2003 its a ACdelco RC-27 then 25730161 and the ACDelco cap recommended is stamped RC-27 25730158 ? neither one of them have a RC-96 stamped on them check it out on E bay or amazon
A radiator cap is not an expensive item . Just go to your local parts store with the cap you have and let them match and not worry about the numbers. If you get the wrong one from online then you have to send it back usually at your expense .