{"product_id":"v-twin-7-8-inch-doering-spark-plug-set-for-classic-harley-davidson-models","title":"V-Twin Doering Spark Plug Set 7\/8 Inch For Classic Harley Davidson","description":"\u003cdiv\u003e\n\u003ch1\u003eV-Twin Doering Spark Plug Set 7\/8 Inch For Classic Harley Davidson\u003c\/h1\u003e\n\u003cp\u003eAuthenticDoering spark plug set designed for early Harley-Davidson air‑cooled engines, featuring a 7\/8 inch thread for classic models in need of period‑correct ignition components.\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eReplica design with the original 1930s globe aesthetic and a top ventilated brass collar for improved cooling.\u003c\/li\u003e \u003cli\u003eIncludes sealing washers, brass terminal, and brass removable terminal nuts for ease of installation and maintenance.\u003c\/li\u003e \u003cli\u003eNickel‑plated base with cooling holes to reflect the original Doering construction and promote heat dissipation.\u003c\/li\u003e \u003cli\u003eFull seize hex for secure installation and removal; compatible with single and twin flat head engines; some IOE applications may require space considerations due to hex size.\u003c\/li\u003e \u003cli\u003ePackaged as a pair, making it suitable for comprehensive engine maintenance or restoration projects.\u003c\/li\u003e \u003cli\u003eCross‑references such as OEM 36-11 compatibility are noted among the product details.\u003c\/li\u003e \u003cli\u003eManufactured in Taiwan to the referenced original standards, ensuring vintage authenticity and durability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFitment and usage: suitable for Harley models using 7\/8 inch plugs, specifically Harley Davidson F, J, RL, UL, and VL series across the listed years; 7\/8 inch plugs are intended for 1923 and earlier models, while 18mm plugs are recommended for 1924–1947 models.\u003c\/p\u003e\n\u003cp\u003eIn addition to restoration, this set supports ongoing maintenance for vintage Harleys, offering a reliable ignition solution that preserves the classic running characteristics your bike reflects.\u003c\/p\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\u003cp\u003eThis V-Twin 7\/8 inch Doering Spark Plug Set is designed to provide authentic performance for vintage Harley Davidson motorcycles. Featuring the original 1930s globe design, these spark plugs include a top ventilated brass collar for improved cooling, adhering to the classic Doering design that ensures reliable ignition and engine efficiency. The terminal nut is removable, allowing for easier installation and maintenance, making this set ideal for restoring or maintaining early Harley Davidson F and VL series models. Crafted to match original standards, these plugs are perfect for enthusiasts seeking authenticity and durability in their restoration projects.\u003c\/p\u003e\n\u003cp\u003eThe spark plugs feature a #3 heat range, suitable for air-cooled engines, and are packaged in a gift box for presentation or storage. Please note that 7\/8 inch spark plugs fit Harley Davidson models from 1923 and earlier, while 18mm plugs are recommended for models from 1924 to 1947. The nickel-plated base with cooling holes reflects the original design, ensuring optimal air flow and heat dissipation. These plugs are manufactured in Taiwan, maintaining high quality standards, although the historic Brooklyn-based Doering company no longer produces in the USA.\u003c\/p\u003e\n\u003cp\u003eDesigned with a full seize hex for easy installation and removal, the plugs are compatible with single and twin flat head engines, with some considerations for space on IOE types due to the large hex size. This set is sold as a pair, making it a reliable choice for comprehensive engine maintenance or restoration. Compatible with OEM cross-references such as 36-11, and complemented by accessory items like the 18mm Doering Spark Plug Set and specialized tools, this set ensures you have everything needed for vintage Harley Davidson spark plug maintenance.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\u003cli\u003eIncludes a ventilated brass collar for superior cooling\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003cli\u003eRemovable terminal nut for easy installation\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003cli\u003eOriginal 1930s globe design with #3 heat range\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003cli\u003ePackaged in a gift box for presentation and storage\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003cli\u003eCompatible with 1923 and earlier models using 7\/8 inch plugs, suitable for Harley Davidson F and VL series\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003cli\u003eNickel-plated base with cooling holes for optimal heat dissipation\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003cli\u003eFull seize hex for secure installation and removal\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003cli\u003eManufactured in Taiwan to original standards\u003c\/li\u003e\u003c\/ul\u003e\n\u003cbr\u003e\nFitment:\u003cbr\u003e\nHarley Davidson F 1909\u003cbr\u003e\nHarley Davidson F 1910\u003cbr\u003e\nHarley Davidson F 1911\u003cbr\u003e\nHarley Davidson F 1912\u003cbr\u003e\nHarley Davidson F 1913\u003cbr\u003e\nHarley Davidson F 1914\u003cbr\u003e\nHarley Davidson F 1915\u003cbr\u003e\nHarley Davidson F 1916\u003cbr\u003e\nHarley Davidson J 1917\u003cbr\u003e\nHarley Davidson J 1918\u003cbr\u003e\nHarley Davidson J 1919\u003cbr\u003e\nHarley Davidson J 1920\u003cbr\u003e\nHarley Davidson J 1921\u003cbr\u003e\nHarley Davidson J 1922\u003cbr\u003e\nHarley Davidson J 1923\u003cbr\u003e\nHarley Davidson J 1924\u003cbr\u003e\nHarley Davidson J 1925\u003cbr\u003e\nHarley Davidson J 1926\u003cbr\u003e\nHarley Davidson RL 1930\u003cbr\u003e\nHarley Davidson RL 1931\u003cbr\u003e\nHarley Davidson RL 1932\u003cbr\u003e\nHarley Davidson RL 1933\u003cbr\u003e\nHarley Davidson RL 1934\u003cbr\u003e\nHarley Davidson RL 1935\u003cbr\u003e\nHarley Davidson RL 1936\u003cbr\u003e\nHarley Davidson UL 1937\u003cbr\u003e\nHarley Davidson UL 1938\u003cbr\u003e\nHarley Davidson UL 1939\u003cbr\u003e\nHarley Davidson UL 1940\u003cbr\u003e\nHarley Davidson UL 1941\u003cbr\u003e\nHarley Davidson UL 1942\u003cbr\u003e\nHarley Davidson UL 1943\u003cbr\u003e\nHarley Davidson UL 1944\u003cbr\u003e\nHarley Davidson UL 1945\u003cbr\u003e\nHarley Davidson UL 1946\u003cbr\u003e\nHarley Davidson UL 1947\u003cbr\u003e\nHarley Davidson UL 1948\u003cbr\u003e\nHarley Davidson VL 1930\u003cbr\u003e\nHarley Davidson VL 1931\u003cbr\u003e\nHarley Davidson VL 1932\u003cbr\u003e\nHarley Davidson VL 1933\u003cbr\u003e\nHarley Davidson VL 1934\u003cbr\u003e\nHarley Davidson VL 1935\u003cbr\u003e\nHarley Davidson VL 1936\u003c\/div\u003e","brand":"V-Twin","offers":[{"title":"Default Title","offer_id":44653001539626,"sku":"49-0880","price":48.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0692\/2285\/8794\/files\/49-0880a.jpg?v=1785882405","url":"https:\/\/atticusgoods.com\/products\/v-twin-7-8-inch-doering-spark-plug-set-for-classic-harley-davidson-models","provider":"Atticus Goods","version":"1.0","type":"link"}