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.
Whatever you decide to do, be sure that you're making an informed decision. Whether you opt to try your hand at DIY Maytag washing machine repair or you choose to scrap the old, worn-out unit in favor of a shinier model, it's your responsibility as a consumer to educate yourself about all of the available options.