Part number is GSJ166. Here we have a ball joint kit for Classic Mini.
Classic Mini Suspension Ball Joint Kit GSJ166 austin cooper clubman swivel hub
Classic Mini Suspension Ball Joint Kit PAIR GSJ166 cooper clubman swivel hub
CLASSIC MINI SUSPENSION BALL JOINT KIT GSJ166 AUSTIN COOPER ROVER SWIZEL HUB 7H1
CLASSIC MINI SUSPENSION BALL JOINT KIT PAIR GSJ166 x2 COOPER S SWIZEL HUB 7H1
CLASSIC MINI FRONT SUSPENSION OVERHAUL KIT-GSJ166-GSV1118-CSK213
Classic Mini N/S Front Swivel Hub Carrier FAM2391 rover austin 8.4 7.5 disc L/h