Looking at some parts listings I find two Fiat part numbers for the 1500 SOHC crankshaft thrust washers/bearings: 902160 and 902161. What is confusing me is some of the listings specify those part numbers opposite of other listings. By that I mean some say 902161 is for the SOHC 1500 and others say it is for the DOHC 1200 (which apparently is different from all other DOHC's?)....and vice versa. Even if that did not make sense, does anyone know the difference between 902160 and 902161?