The NGK 4838 Spark Plug - BP8HN-10 Pack of 6 is a high-quality ignition system component designed for vehicles. This glow plug features a 14mm spark plug thread size, 12.7mm spark plug reach, and a gasket seat type. Made in the United States, this spark plug is compatible with the OE/OEM part number BP8H-N-10 and has a spark plug hex size of 13/16 inches. With the trusted NGK brand and durable construction, this pack of 6 spark plugs ensures reliable performance and optimal ignition for your vehicle.