The NGK 515988 spark plug, also known by its part number BKR6E-11, is a V-Power type plug designed for consistent and reliable ignition. Featuring a 14mm thread diameter, 19mm (3/4") thread reach, and a 16mm (5/8") hex size, this resistor-type spark plug has a standard 1.1mm (0.043") gap. Its V-Power design with a copper core center electrode enhances ignitability and reduces quenching, providing stable performance across a wide range of operating conditions. This spark plug is a common choice for various small engines and automotive applications requiring a heat range of 6.