Mercury Mariner Outboard Spark Plugs 30HP 40HP Four Stroke. P/N: RA8HC

Mercury / Mariner  Spark Plugs x 3 In Non Retail Packaging 

These are the correct spark plugs for the following four stroke models:

30hp EFI serial numbers 0T409000 - 1B226999 (will NOT fit models with serial numbers starting 0R****

40hp EFI 3 cylinder models (will NOT fit carb models)

If you have any doubts whether these will fit your outboard, please email your model and serial number.

Please note: The sparks plug will not arrive in the manufactures original packaging due to bulk purchase

Thank you for looking.