Up for Buy it Now Listing is for this 18mm, NOS, AC 83-M Spark Plug....
 GM & AC P/N 5569596 
The above Photos show one of the plugs, which is the typical NOS condition Box, & Gasket the buyer will receive, and is the condition and description. This Plug is in excellent condition...No rust....the entire contents are shown in the first photo, followed by close-up photos. This is the original finish, not a reman!
This Plug was used in several outboard Motors, and the 1956 AC Catalog lists the following: Caille Racing Models: 30,35, 40, 45....Champion 4KS & 4LS....Corsair 1954 & '55 15 HP....Elto 'Big Quad', Handfour, Lightweight, & Speedtwin....Evinrude's Big Four, Fastwin....Firestone 1954-'56 16 HP....Johnson

Shipping is based on quantity. (if available) Flat-Rate (same price) to any of the 50 states of the USA.  

SHIPPING: ONLY to all 50 states of the USA...NO Puerto Rico, Guam, AS, APO, FPO, or eBay Global service