Product review (5 stars): Original OEM Rollers  buy 4 and replace the belt and idler pulley ,
These wheels are LG OEM wheels
I had a hard time deciding on wheels because some are knockoffs , best to buy these with the shaft included , you re-use the washers one on each side and the 14mm hex nut , these rollers tend to seize up on the shaft ,
Vacume out the heat exchanger as well and i ordered a belt and idler puller for a backup , replace all 4 rollers these are larger than the old ones and its best to replace all 4 ,