{"product_id":"7-8-inch-doering-spark-plug-set","title":"7\/8 inch Doering Spark Plug Set","description":"\u003cp\u003eReplica air cooled spark plug with 7\/8 inch thread for early model motors and includes sealing washers  brass terminal and brass removable terminal nuts. Fits all 7\/8 inch applications.\n\u003cbr\u003eIncludes top ventilated brass collar for cooling  as original  Doering design! Terminal nut is removable. Original globe design of the 1930's. Features a #3 heat range. Packaged in a gift box. *NOTE: 7\/8 inch spark plugs fit 1923 and ealier singles and twins  1924-1947 use 18mm plugs. Best for Pre-1925 JD \u0026amp; F models. Doering plugs feature a nickel plated base with cooling holes as original design for air cooled engines. *NOTE: Sold as a pair. **NOTE: Air cooled spark plug features a full seize hex. Full size hex is for single and twin flat heads  For IOE types  with space for the large hex. *NOTE: Hex size may interfere on some Flathead models. Doering Spark Plug Company was founded in Brooklyn  NY in 1918″ making plugs for tractors. In the later years  they made plugs for automotive applications  for motors that burned an excessive amount of oil. They are manufactured to the original standards of that era  but not in Brooklyn any longer.\u003c\/p\u003e","brand":"V-Twin","offers":[{"title":"Default Title","offer_id":67611550613689,"sku":"49-0880","price":265.99,"currency_code":"USD","in_stock":false}],"url":"https:\/\/www.thespeedshopusa.com\/fr\/products\/7-8-inch-doering-spark-plug-set","provider":"THE SPEED SHOP USA","version":"1.0","type":"link"}