This lot of eight DENSO spark plugs is a great addition to any car or truck. The 14 mm thread diameter and standard configuration make them easy to install and use. The OE/OEM part number K16GPR-U11 and manufacturer part number 3135 ensure that you are getting high-quality parts from a trusted brand. These spark plugs are designed for gasoline engines with a voltage of 12V. Made in Japan, they are a vintage part that is perfect for collectors or those looking to add a touch of nostalgia to their vehicle. Whether you are replacing old spark plugs or just want to upgrade your ignition system, this lot of DENSO spark plugs is a great choice.