Replacement parts for Oster microwaves can be purchased online through specialty retailers such as MicrowaveGlassTrays.com and PartSelect.com, as well as through mass retailers such as Amazon. Internet auction sites such as eBay also contain Oster replacement parts sold by both private sellers and parts dealers.
MicrowaveGlassTrays.com sells various microwave replacement parts such as diodes, turntable motors and switches, as well as glass trays. Certain parts are listed without any special sorting, while others are broken down by compatible manufacturer. Each listing contains a picture of the part, along with a part number and a description of its pertinent details. The site also contains a search function that allows users to locate parts based on the model of microwave for which the part is intended.
Amazon contains listings for Oster replacement parts sold both by the company itself and third parties using the Amazon Marketplace feature. This program allows other retailers to create a special account which allows them to sell products directly through the Amazon website. Some sellers handle shipping themselves, while others use Amazon as a fulfillment house, which means that shipping costs can vary greatly. All items sold on Amazon can be paid for with Amazon gift cards as well as funds in an Amazon Payments account regardless of the seller.