Assembly Parts List For: 121666-SERIES Part Number OEM PN Description In Stock 3231708JP-2 3231708-2 Ball Screw Assembly 3231708JP-3 3231708-3 Ball Screw Assembly call for information 3231785JP-3 3231785-3 Spur Gear 3231708JP-2Ball Screw Assembly 3231708JP-3Ball Screw Assembly 3231785JP-3Spur Gear Submit a PMA Development Request