The product is a set of 4 Autolite Platinum Spark Plugs (part number AP5324) designed for direct replacement in various vehicle models including HR10HC, 5614001, 5018, 4505, and 446. The spark plugs are compatible with brands like Jeep, Champion, Bosch, NGK, and Denso. They come with a manufacturer warranty ranging from 2 to 5 years, depending on the type of spark plug. The pack includes a 4 pc Genuine Autolite Spark Plug Kit.