{"product_id":"7-8-inch-doering-spark-plug-set","title":"V-TWIN 7\/8 inch Doering Spark Plug Set","description":"V-TWIN \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\u003cbr\u003e\nFitment:\u003cbr\u003e\n1909 Harley Davidson F\u003cbr\u003e\n1910 Harley Davidson F\u003cbr\u003e\n1911 Harley Davidson F\u003cbr\u003e\n1912 Harley Davidson F\u003cbr\u003e\n1913 Harley Davidson F\u003cbr\u003e\n1914 Harley Davidson F\u003cbr\u003e\n1915 Harley Davidson F\u003cbr\u003e\n1916 Harley Davidson F\u003cbr\u003e\n1917 Harley Davidson J\u003cbr\u003e\n1918 Harley Davidson J\u003cbr\u003e\n1919 Harley Davidson J\u003cbr\u003e\n1920 Harley Davidson J\u003cbr\u003e\n1921 Harley Davidson J\u003cbr\u003e\n1922 Harley Davidson J\u003cbr\u003e\n1923 Harley Davidson J\u003cbr\u003e\n1924 Harley Davidson J\u003cbr\u003e\n1925 Harley Davidson J\u003cbr\u003e\n1926 Harley Davidson J\u003cbr\u003e\n1930 Harley Davidson RL\u003cbr\u003e\n1930 Harley Davidson VL\u003cbr\u003e\n1931 Harley Davidson RL\u003cbr\u003e\n1931 Harley Davidson VL\u003cbr\u003e\n1932 Harley Davidson RL\u003cbr\u003e\n1932 Harley Davidson VL\u003cbr\u003e\n1933 Harley Davidson RL\u003cbr\u003e\n1933 Harley Davidson VL\u003cbr\u003e\n1934 Harley Davidson RL\u003cbr\u003e\n1934 Harley Davidson VL\u003cbr\u003e\n1935 Harley Davidson RL\u003cbr\u003e\n1935 Harley Davidson VL\u003cbr\u003e\n1936 Harley Davidson RL\u003cbr\u003e\n1936 Harley Davidson VL\u003cbr\u003e\n1937 Harley Davidson UL\u003cbr\u003e\n1938 Harley Davidson UL\u003cbr\u003e\n1939 Harley Davidson UL\u003cbr\u003e\n1940 Harley Davidson UL\u003cbr\u003e\n1941 Harley Davidson UL\u003cbr\u003e\n1942 Harley Davidson UL\u003cbr\u003e\n1943 Harley Davidson UL\u003cbr\u003e\n1944 Harley Davidson UL\u003cbr\u003e\n1945 Harley Davidson UL\u003cbr\u003e\n1946 Harley Davidson UL\u003cbr\u003e\n1947 Harley Davidson UL\u003cbr\u003e\n1948 Harley Davidson UL","brand":"V-Twin","offers":[{"title":"Default Title","offer_id":55891009241256,"sku":"49-0880","price":178.95,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0747\/8273\/6552\/files\/49-0880a.jpg?v=1787193463","url":"https:\/\/speedguyscanada.com\/products\/7-8-inch-doering-spark-plug-set","provider":"THE SPEED GUYS CANADA ","version":"1.0","type":"link"}