Champion Spark Plug J4C (825) Spark Plug
Mercury Outboards
- 100 HP 1966-1960 1000 0.025
- 90 HP 1966-1960 900 0.025
- 85 HP 1966-1960 850 0.025
- 80 HP 1966-1960 800E Serial Number 1403610 0.025
- 80 HP 1966-1960 800E Serial Number 1403611 0.025
- 80 HP 1966-1960 800EL Serial Number 1405606 0.025
- 80 HP 1966-1960 800EL Serial Number 1405607 0.025
- 65 HP 1966-1960 650 0.025
- 65 HP 1966-1960 650S 0.025
- 35 HP 1966 350 0.025
Replaces Champion: J2J J4 J4J J4JM J79 RJ4 RJ4J RJ81B
