{"product_id":"for-harley-dyna-programmable-single-fire-53-644-electronic-ignition-module","title":"For Harley Dyna Programmable Single Fire 53-644 Electronic Ignition Module","description":"\u003ch2\u003eElectronic Ignition Module for Harley Dyna\u003c\/h2\u003e\u003cp\u003eThis programmable single fire electronic ignition module for Harley Dyna replaces the factory ignition unit and lets you dial in timing curves for your specific build, cross-referenced to OEM 53-644.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThis programmable single fire electronic ignition module is built for riders who want control over their ignition timing on a Harley Dyna. It manages spark delivery to each cylinder independently, supporting smoother idle and stronger throttle response across the rpm range. The module suits home wrenchers and shops installing performance cams, carburetor swaps, or rebuilt top ends.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eProgrammable timing curves let you tune spark advance to match your engine build\u003c\/li\u003e\n\u003cli\u003eSingle fire operation fires each cylinder independently for precise combustion control\u003c\/li\u003e\n\u003cli\u003eSolid-state electronics replace wear-prone mechanical points and advance weights\u003c\/li\u003e\n\u003cli\u003eCross-referenced to OEM 53-644 for straightforward identification against your stock unit\u003c\/li\u003e\n\u003cli\u003eSealed module construction resists vibration and engine bay heat\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003efor Harley Dyna models with compatible single fire ignition systems\u003c\/li\u003e\n\u003cli\u003efor Harley Dyna builds using OEM 53-644 or equivalent ignition modules\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eReplacing a failed or intermittent stock ignition module on a Dyna\u003c\/li\u003e\n\u003cli\u003eSupporting cam, carburetor, or exhaust upgrades that need revised timing\u003c\/li\u003e\n\u003cli\u003eServicing classic Dyna models in home garages and independent shops\u003c\/li\u003e\n\u003cli\u003eSetting up a fresh build that needs an adjustable ignition curve\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eSpecs At A Glance\u003c\/h4\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Number(s)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e53-644\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIgnition Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eElectronic, single fire\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTuning\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eProgrammable timing curves\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFitment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003efor Harley Dyna models\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch4\u003eGood To Know\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Do I need any extra parts to install this? \u003cstrong\u003eA:\u003c\/strong\u003e Installation normally reuses your existing coil, plug wires, and wiring harness, though some builds require a compatible single fire coil. Check your current setup against the module before ordering.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Can this module be tuned after installation? \u003cstrong\u003eA:\u003c\/strong\u003e Yes, the programmable design lets you adjust timing curves to suit changes in cams, carburetion, or compression. Adjustments should be made following the manufacturer's procedure for your specific ignition.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eSlight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.\u003c\/em\u003e\u003c\/p\u003e","brand":"Solid Spare","offers":[{"title":"Default Title","offer_id":50556835364950,"sku":"ZZ3P00387","price":112.19,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/s-l1600_653c7987-e099-4c82-87f5-2b22f4bc7376.jpg?v=1790939455","url":"https:\/\/www.solidspare.com\/products\/for-harley-dyna-programmable-single-fire-53-644-electronic-ignition-module","provider":"Solid Spare","version":"1.0","type":"link"}