This cylinder gasket set is designed for use with select 250cc and 300cc scooter models.Compatible models include: Dink 250 SH50DB, Dink 250 SH50DD, Dink 250 SH50DA, Dink 250 SH50DC, Vista 250 SH50DF, Vista 250 SH50DG, People 250 BC50AA, People 250 BC50AB, People S 250 BA50AA, People S 250 BA50AB, People S 250 BA50AC, People S 250i BB50AA, Xciting 250 SA50AA, Xciting 250 SA50AD, Xciting 250 SA50AB, Xciting 250 SA50AE, Xciting 250i SB50AD, Xciting 300i SB60AA, G-Dink 300i SH60AB, KXR 250 LA50AA, KXR 250 LA50AD, KXR 250 LA50AE, Maxxer 250 LA50AA, Maxxer 250 LA50BD, Maxxer 300 Wide LA60FD, Maxxer 300 LA60BD, Mongoose 250 LA50AA, Mongoose 250 LA50EA, Mongoose 300 LA60BA, Mongoose 300 LA60FA, MXU 250 LB50AD, MXU 300 LA60AD, MXU 300 LA60AA, MXU 300 LA60EA, MXU 300 R LC60AD.The set replaces part numbers 12191-KHE7-910 and 12251-KHE7-901 and is intended for cylinder repair and engine maintenance applications.