Our Whirlpool microwave parts are in stock and ready to ship out to you within one to two business days in most cases. AppliancePartsPros.com keeps a detailed inventory of Whirlpool appliance parts, including those for virtually all makes and models of microwaves. That means that what you need is likely ready for you! To find the part that you need for your microwave, simply search for it by its model number of by the part you need. It takes only a matter of seconds to find exactly what you need and to get it on its way to your door.