Up for sale is a new OEM Briggs & Stratton exhaust valve that fits several different models of B&S engines. Do not trust off brands  made if inferior material with inprecise specs, and no quality control process in place to monitor quality. Many times these no name parts are not identical, and can contribute to engine failure. Take comfort in knowing that you are buying from a brick and mortar small engine repair shop that will be here to answer your questions now, and in the future. Below is a list of model numbers of B&S engines that this part is compatible with.