parameter of ES-BP6,thread 14mm,reach 19mm (3/4"),hex size 20.6mm (13/16") , heat range 6, gap 0.8mm (0.32").

 

Match with NGK , BK6ES,BP6EVX,BP6EIX

Match with DENSO, W20EXR-U,IW20

Match with BOSCH , W7DC,WR7DP,WR7DI

application chart for automobile,