Replacement drive wheel kit. Fits Husqvarna Automower 115H, 430X, 430XH, 450X, 450XH, 520, 520H, 550, 550H, 450X EPOS, 450XH EPOS, 550 EPOS, 550H EPOS models. Can also be used on the front of 435X & 535AWD models. 
 
Kit includes: 
Standard Drive Wheel X2
Washer X2
Wheel Nut X2
Hub Cap X2