Equivalent Denso W22FS-U
The NGK B7HS is a widely used standard nickel spark plug, often utilized in 2-stroke motorcycles, scooters, and older engines. It is known for a 14mm thread diameter, 12.7mm (1/2") reach, and 21mm (13/16") hex size. This non-resistor plug features a copper core for improved heat dissipation and a heat range rating of 7.