Dishwasher parts can be bought from the original dishwasher manufacturer, such as Bosch. They can also be bought from spare parts sites such as Sears and eSpares.

A dishwasher is made up of many parts. You can find the model number of your dishwasher and enter it into an appliance parts website. From there, you should be presented with a breakdown of parts for your particular dishwasher. Or, just search for appliance parts and from there you can see all the different parts that a website sells.

For most brands none of the parts are dishwasher safe.

You can go on Whirlpool's website to order specific dishwasher part from your type of dishwasher. You can also go on a website named, "Amazon", and order you parts for your, Whirlpool, dishwasher. Those are to main way to order your parts for your Whirlpool dishwasher.

A person can purchase dishwasher parts from Lowes, Sears and Home Depot. If you know the brand of the dishwasher it may be easier to contact the maker as they will also provide parts for sale.