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British Seagull

British Seagull spark plug

Champion Spark Plugs for British Seagull Outboard Motors

Champion spark plugs are original equipment on many outboard and inboard motors and are excellent replacements for everyday engine maintenance. Please view the application guide below. You may also find the Champion spark plug code helpful.

Year Model / Engine Copper Plus Plug Alternate Plug Gap
6 HP
    D21 0.025
5 HP
    D21 0.025
4 HP
    D21 0.025
3 HP
    D21 0.025
2 HP
    D21 0.025
1970-1956 Century D21 0.025
1970-1957 Century Plus D21 0.025
1981-1955 Forty Fthwght D21 0.025
1981-1955 Forty Minus D21 0.025
1981-1956 Forty Plus D21 0.025
1981-1966 Silver Century D21 0.025
1981-1966 Silver Century Plus D21 0.025