It is not difficult to buy washing machine parts; however, it may be a little more difficult to pull that machine down and find out exactly what part is broken. If you are a true handyman, then this may not be anything to worry about, but for those who are not used to anything mechanical then it could pose a problem. The best thing to do is to get that repairman in to do the job and tell you what is needed.
Even your average machine from Maytag, Whirlpool, GE and many of the other common brands eventually will balk at the neglect. Many times, these are basic repair issues. Replacing a band or pump, for example, is pretty easy to do. A good deal of the problems don't even require repair - a quick troubleshooting, like taking a kink out of a hose is all they need at times. If it is a little more problematic, affordable washing machine parts can be purchased for these same aforementioned brands on several internet sites.