You can install parts yourself on a Maytag washer. There are resources on the Internet that take you through the process of installing parts on a Maytag washer if you're willing to read and follow their directions.
AppliancePartsPros.com is a resource that identifies and sells Maytag washer parts. The website has a toll-free number, and you have access to 24/7 customer support once you join the site. You can also join a repair forum for technical assistance. PartSelect.com offers authentic Maytag parts. They also have an instant repairman on the site to assist in identifying your problem and the needed part. If you know the precise part you need and are fairly knowledgeable about the installation, you can go to eBay and search for the part at a discounted price.