The NGK 3951 V-Power Spark Plug is designed for UTV vehicles and features a ceramic top material with a copper core. It has a manufacturer part number of TR55 and a model number of 3951. This spark plug is manufactured by NGK Spark Plugs in Japan and is part of their V-Power series. The product dimensions are 4.35 x 2.24 x 2.08 inches, and it weighs 1.41 ounces. The NGK 3951 spark plug is known for its reliability and quality performance in ignition systems.