{"product_id":"49-0880-7-8-doering-spark-plug-set","title":"7\/8 Doering Spark Plug Set 1909 \/ 1916 F 1930 \/ 1936 VL 1930 \/ 1936 RL 1937 \/ 1948 UL 1917 \/ 1926 J","description":"\u003cp\u003e\u003c\/p\u003e\u003cp\u003eReplica air cooled spark plug with 7\/8  thread for early model motors and includes sealing washers  brass terminal and brass removable terminal nuts. Fits all 7\/8  applications. Includes 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  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\u003cp\u003e\u003cb\u003eFITMENT\u003c\/b\u003e\u003c\/p\u003e \u003cli\u003e1909 \/ 1916 F  \u003c\/li\u003e\u003cli\u003e1930 \/ 1936 VL  \u003c\/li\u003e\u003cli\u003e1930 \/ 1936 RL  \u003c\/li\u003e\u003cli\u003e1937 \/ 1948 UL  \u003c\/li\u003e\u003cli\u003e1917 \/ 1926 J  \u003c\/li\u003e\u003cp\u003e\u003c\/p\u003e\u003cp\u003e\u003cb\u003eACCESSORY ITEMS\u003c\/b\u003e\u003c\/p\u003e\u003cli\u003e49-0878\u003c\/li\u003e\u003cli\u003e48-1642\u003c\/li\u003e\u003cli\u003e16-1286\u003c\/li\u003e\u003cli\u003e16-1387\u003c\/li\u003e","brand":"V-TWIN MANUFACTURING","offers":[{"title":"Default Title","offer_id":31491216506991,"sku":"49-0880","price":82.67,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0081\/7401\/0479\/products\/49-0880a_526dee58-324b-49cf-99e0-c496715b97bc.jpg?v=1588456431","url":"https:\/\/www.widowmakersboneyard.com\/products\/49-0880-7-8-doering-spark-plug-set","provider":"Widowmaker's Boneyard","version":"1.0","type":"link"}