size is 133.3*158.7*12.4/14.6 ,this seal is for MF agriculture tractors.OEM number is 2418F475 ... Viton/ACM. Viton oil seals for perkins engine,this seal is for MF agriculture tractors.OEM number is 2418F475, ... material is Viton/ACM.This seal is for MF agriculture tractors,Perkins engine,size is ... 133.3*158.7*12.4/14.6,material is Viton(brown),ACM(black),OERM is ...