This lot of 8 DENSO spark plugs is a great addition to any car or truck. The double platinum configuration ensures long-lasting performance, while the 14 mm thread diameter and standard configuration make them easy to install. These spark plugs are made of high-quality platinum material and have a voltage of 12V. The OE/OEM part number is PK16R11 and the manufacturer part number is 3134. They are made in Japan and are suitable for gasoline fuel type. These spark plugs are not vintage and come from a trusted brand, DENSO. Upgrade your ignition system with this lot of 8 spark plugs and ensure smooth and efficient engine performance.