Ryobi 308487001 Shoulder Genuine Original Equipment Manufacturer (OEM) Part This part is compatible with models including; UT20738,UT15520A,UT20817,UT20818,UT20779,UT20777,UT20699,UT20730,UT20774,UT20773,RY30140,UT15159R,UT15180,UT15181,UT20826R,RY30000A,UT15702A,RY30004A,UT20823,UT20729,UT20728,UT20704,UT20703,UT20702,UT15157,UT20701,UT20700,UT20784,UT20780,RY30550,RY30951,UT-20691-R,UT15154,UT15151,UT15152,RY30160,UT15169,UT15204,RY30120,UT20734R,RY30002,RY30000,RY30004,UT-20694,UT-20697,UT15164,UT-20698,UT15165,UT15200,UT15160,UT20709,RY30002A,UT20707,UT20827,UT15179 This is a manufacturer substitution. Part may differ in appearance but is a functional equivalent to prior parts including; 944701,099075001012,UP00108,DA-92703-C,DA92703C,A00980 Genuine Original Equipment Manufacturer (OEM) part. Compatible Brands: Ryobi 121620