Champion RJ18Y
ngk Bm6a its the same plug
Champion J19LM or 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
autolite 2974 or xst2974 (irridium) champion rcj7y, cj7y ngk bpmr7a
Champion CJ7Y Champion RCJ6Y Autolite 2974 Bosch WSR6F Denso W22MP-U NGK BPMR7A
a ngk cr7hsa spark plug
Champion Spark Plug Co. is currently owned by Federal-Mogul.
Rj19lm
This plug is the Champion RCJ7Y.