Hustler Turf Equipment is part of Excel Industries, INC. and is the creator of the world’s first zero-turn mower. Now it has become one of the leading turf care brands in the world. This BELT, B-SECTION is for your HUSTLER equipment. The HUSTLER approved OEM number is 604817 and HUSTLER approved part description is BELT, B-SECTION. This is an authentic part from HUSTLER TURF EQUIPMENT.