Since it was over 9 years ago, I had a hard time because there was no product whose part number No attached to the dolly and No. of the part ordered this time agreed. I measured the sizes of the wheels and ordered items with matching values, but it was ok. I am pleased that it works well and works smoothly. However, although I think that No will change when things get older, I think that if you have such a statement that the previous product number was **, the purchasing side will also be saved, but thank you for that point .