Do all new washing machines use the same pipes and plumbing?
Yes. You will get new fill hoses with your washing machine but the existing fill hoses will still fit. Some fill hoses supplied with a new washing machine may have filters built into the ends, whereas your previous ones may not. Also, a quality washing machine may come with anti flood fill hoses, which are better than normal hoses. Unless you have had extra long fill hoses ( washing machine fill hoses ) installed because normal sized hoses won’t reach it is better to replace the old ones. Hoses don’t last forever so it makes sense to use the new hoses supplied with the new washing machine.