Alternator Pulley 87 MM OD Single Groove Steel Design - Sparex Part S.35914The Sparex S. 35914 Alternator Pulley is engineered to deliver smooth and efficient belt drive performance for alternators in agricultural and industrial engines. Its precision balanced design ensures optimal rotation and minimal vibration during operation. With an outer diameter of 87mm, a 17mm bore, and a 12. 5mm belt top width, this single groove pulley provides secure fitment and consistent power transfer between the alternator and drive system.