parameter of ES-BPR5,thread 14mm,reach 19mm (3/4"),hex size 20.6mm (13/16") , heat range 5, gap 0.8mm (0.32").

 

Match with NGK , BKR5ES,BPR5EVX,BPR5EIX

Match with DENSO, W16EXR-U,IW16

Match with BOSCH , WR6DC,WR6DP,WR6DI

Application chart for automobile (CNG/LPG engines),