parameter of E-BKR6,thread 14mm,reach 19mm (3/4"),hex size 16mm (5/8") , heat range 6, gap 0.8mm (0.32").

Match with NGK ,BKR6E,BKR6EVX,BKR6EIX

Match with DENSO, K20R-U,IK20

 

Match with BOSCH ,FR7DC,FR7DP,FR7DI

Application chart for automobile (CNG / LGP engines),