Champion CJ7Y Champion RCJ6Y Autolite 2974 Bosch WSR6F Denso W22MP-U NGK BPMR7A
ngk Bm6a its the same plug
on the back of the plug package it has : replaces CJ8, RCJ8, J19LM & RJ19LM. hope this helps.
Rj19lm
a ngk cr7hsa spark plug
ngk Bm6a its the same plug
bp4 ngk
Champion J19LM or RJ19LM
Looks like the RJ19LM
64 Autolite Replaces Champion RN11YC, NGK BPR5ES
The replacement is a Champion CJ-8
Champion rc12yc, Briggs 491055 or Champion Premium plug (platinum) #3071