Ordered the wheel kit for my champ welder online, recieved the kit in a timely manner, installed in about 13 minutes. The kit was better than expected and the final outcome was 100% better than my make shift cart. In my opinion you should never buy this unit or one like it and not buy this kit. I have had this welder generator for 3 years and couldn't get the mobility that I have have now with this wheel kit. You CAN't save enough money not buying the kit.