Denso (3421) SK20HR11 Iridium Long Life Spark Plug, Single Plug 766383111534 Brand Motorcraft Model KH-710

Brand Motorcraft Model KH-710

Provides single pole control of ceiling fans

to ensure the net won't break down under pressure

so it won't damage primers or brass and doesn't smell

Denso (3421) SK20HR11 Iridium Long Life Spark Plug, Single Plug 766383111534 Brand Motorcraft Model KH-710Brand Denso Model SK20HR11 Single Plug Denso # 3421 Extra Long Life Iridium Plug 0. 7mm Fine Wire Iridium Tipped Center Electrode Platinum Tipped Ground Electrode Iridium plugs have an extremely long life as Iridium is 6x harder and 8x stronger than platinum. Because of the strength and hardness of iridium, there is virtually no electrode wear. This combined with a platinum tipped ground electrode, creates a spark plug that is almost impervious to