champion #940
Rc12yc
Champion
rj19lm
It crosses to a champion stock number 405.
cross reference ngk BP4HS
Champion RDZ19H
.023"
NGK BP7ES, Bosch W7DC, Champion N9YC
spark plug is good but when its plug in to coil on spark
.025 inch per the manual.
64 Autolite Replaces Champion RN11YC, NGK BPR5ES