A machine's brand name does not mean all its parts are composed of the same brand. Parts and pieces may have built through other brands. These other brands should still be compatible to the actual unit though. As mentioned on the paragraph above, choose what is best according to most users. You can trust the opinion of experts and professionals with repairs.
It is therefore essential for a consumer to maintain the washing machine whether it is old or new. Remember that washing machine has many moving parts as can be seen. Moving parts will cause wear and tear. Similarly the temperature of water also causes impacts on the parts of the machine. Detergents, bleaches and softeners used for washing have acid contents which will react with certain parts of the machine especially metallic parts. Residues formed after the washing process may get deposited in different places in the interiors of the machine.