Not knowing what year & model you have I looked up P/N's for '06 XL 1200 Low thru 2012 XL 1200 Lows or there abouts. Most P/N's were the same thru '07,axles,spacers, etc. The cast wheel changed #'s a couple of times, maybe just design/looks. Also bearing & spacer changed on disc side if model had ABS brakes. With ABS brakes the bearing is different and the sensor acts as part of the spacer.
tourbox