The 3972382 V-ribbed belt sized 8PK2075 suits multiple Cummins engine series including ISB6.7, QSB6.7, ISD4.5, D6.7, ISF3.8, QSC8.3 and QSL9. Optimized rib geometry enhances friction transmission to run multiple auxiliary devices synchronously. Anti?crack rubber compound lowers wear rate under cyclic stress for commercial vehicle applications.