This set of 32 Champion RBL17Y6 spark plugs is the perfect replacement for your vehicle's ignition system. With a thread diameter of 14mm and a hex size of 16mm, these standard-sized plugs are made of high-quality copper material for durable performance. The voltage of 12V and fuel type of gasoline make them suitable for most vehicles. These spark plugs are interchangeable with part numbers R46TSZ, 2727, T14PRU, and 2527, and are compatible with OE/OEM part number 25164640. Made in the United States, these spark plugs are a great choice for anyone looking for a reliable replacement. Representative item lot is shown. New old stock spark plugs with original packaging in poor condition. Made in USA. No returns on installed items or partial sets. Please review our business policies in our store for information regarding returns, shipping and warranties.