{"product_id":"compufire-charging-system-32amp-1981-1999-bt-except-efi-139-10017","title":"Compufire 32 AMP Charging System - 1981-1999 Harley Big Twin Carbureted","description":"\u003c!-- vt:seo-start --\u003e\n\u003cdiv class=\"vt-brand-bio\" style=\"background:#f6f6f6;border-left:4px solid #c8102e;padding:14px 18px;margin:0 0 20px;border-radius:4px;\"\u003e\n\u003ch2 style=\"margin:0 0 6px;font-size:1.05em;\"\u003eAbout Compufire\u003c\/h2\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.6;\"\u003eCompufire parts and accessories are stocked at Vtwinbikers for Harley-Davidson and Indian Motorcycle applications. Every Compufire item we list is new and sourced through authorized distribution. If you are not certain a part matches your year and model, use Shop by Bike or email our team before you order and we will confirm fitment first.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp style=\"line-height:1.65;\"\u003eReinvigorate the electrical system of your 1981-1999 carbureted Harley-Davidson Big Twin with this Compufire 32-amp charging system. It's engineered as a direct replacement, breathing new life into aging electrical infrastructure. This system ensures your classic V-twin maintains reliable power for all its needs.\u003c\/p\u003e\n\u003ch3 style=\"margin:20px 0 6px;\"\u003eWhy riders pick this\u003c\/h3\u003e\u003cul style=\"padding-left:20px;margin:0 0 16px;\"\u003e\n\u003cli style=\"margin:3px 0;\"\u003e32-amp output for solid electrical performance\u003c\/li\u003e\n\u003cli style=\"margin:3px 0;\"\u003eDirect replacement for stock Big Twin systems\u003c\/li\u003e\n\u003cli style=\"margin:3px 0;\"\u003eDesigned exclusively for carbureted models\u003c\/li\u003e\n\u003cli style=\"margin:3px 0;\"\u003eRestores reliable charging on older V-twins\u003c\/li\u003e\n\u003cli style=\"margin:3px 0;\"\u003eSimple installation with no modifications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis Compufire 32-amp charging system offers a straightforward solution for riders of 1981-1999 Harley-Davidson Big Twin models equipped with carburetors. As a direct replacement for the stock charging system, it simplifies the upgrade process, restoring dependable output without the need for complex modifications. It's an essential component for any rider looking to maintain or improve the electrical health of their vintage V-twin.\u003c\/p\u003e\u003ch3\u003eReliable Power for Classic Big Twins\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e32-amp output capacity for consistent power delivery\u003c\/li\u003e\n\u003cli\u003eSpecifically designed for carbureted Big Twin applications\u003c\/li\u003e\n\u003cli\u003eDirect, drop-in replacement for your stock charging system\u003c\/li\u003e\n\u003cli\u003eManufactured for dependable performance\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eEngineered for carbureted V-Twin Demands\u003c\/h3\u003e\u003cp\u003eThe design of this Compufire charging system focuses on providing optimal performance for carbureted Big Twin engines within the specified year range. It delivers the necessary amperage to keep your battery charged and your electrical components running smoothly, especially important as these motorcycles age. By offering a drop-in replacement, Compufire makes it easy to address common charging issues, allowing you to spend less time in the garage and more time on the road.\u003c\/p\u003e\n\u003ch3 style=\"margin:20px 0 6px;\"\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Compufire\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part #:\u003c\/strong\u003e 55520\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 694342548018\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 32\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength:\u003c\/strong\u003e 8 in\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWidth:\u003c\/strong\u003e 5 in\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHeight:\u003c\/strong\u003e 8 in\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 9 lbs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 style=\"margin:22px 0 8px;\"\u003eCommon questions\u003c\/h3\u003e\u003cdiv class=\"vt-faq\"\u003e\n\u003cdiv style=\"margin:0 0 12px;\"\u003e\n\u003cp style=\"margin:0 0 3px;font-weight:600;\"\u003eIs this charging system compatible with fuel-injected Harley Big Twin models?\u003c\/p\u003e\n\u003cp style=\"margin:0;line-height:1.6;\"\u003eNo, this Compufire 32-amp charging system is specifically designed for carbureted 1981-1999 Harley-Davidson Big Twin models and is not compatible with EFI applications.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin:0 0 12px;\"\u003e\n\u003cp style=\"margin:0 0 3px;font-weight:600;\"\u003eCan I install this on a Harley Big Twin newer than 1999?\u003c\/p\u003e\n\u003cp style=\"margin:0;line-height:1.6;\"\u003eThis charging system is engineered for 1981-1999 Big Twin models. Newer Big Twin motorcycles feature different electrical architecture and require a different charging solution.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin:0 0 12px;\"\u003e\n\u003cp style=\"margin:0 0 3px;font-weight:600;\"\u003eIs this a direct bolt-on replacement for my factory charging system?\u003c\/p\u003e\n\u003cp style=\"margin:0;line-height:1.6;\"\u003eYes, this Compufire 32-amp charging system is designed as a direct, drop-in replacement for the stock unit, requiring no modifications for installation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"vt-confidence\" style=\"border-top:1px solid #e5e5e5;margin:24px 0 0;padding:16px 0 0;font-size:0.92em;line-height:1.6;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOrdering from Vtwinbikers\u003c\/h3\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli\u003eBrand new, sourced through authorized US distribution — never used, never grey-market.\u003c\/li\u003e\n\u003cli\u003eNot sure it fits? Use \u003cstrong\u003eShop by Bike\u003c\/strong\u003e to filter by your year and model, or email us and we will confirm before you order.\u003c\/li\u003e\n\u003cli\u003eHarley-Davidson and Indian Motorcycle is all we do, so you are talking to people who ride what you ride.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/vtwinbikers.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Electrical\",\"item\":\"https:\/\/vtwinbikers.com\/collections\/all\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Compufire\",\"item\":\"https:\/\/vtwinbikers.com\/collections\/compufire\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Compufire 32 AMP Charging System - 1981-1999 Harley Big Twin Carbureted\",\"item\":\"https:\/\/vtwinbikers.com\/products\/compufire-charging-system-32amp-1981-1999-bt-except-efi-139-10017\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Is this charging system compatible with fuel-injected Harley Big Twin models?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No, this Compufire 32-amp charging system is specifically designed for carbureted 1981-1999 Harley-Davidson Big Twin models and is not compatible with EFI applications.\"}},{\"@type\":\"Question\",\"name\":\"Can I install this on a Harley Big Twin newer than 1999?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"This charging system is engineered for 1981-1999 Big Twin models. Newer Big Twin motorcycles feature different electrical architecture and require a different charging solution.\"}},{\"@type\":\"Question\",\"name\":\"Is this a direct bolt-on replacement for my factory charging system?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes, this Compufire 32-amp charging system is designed as a direct, drop-in replacement for the stock unit, requiring no modifications for installation.\"}}]}\u003c\/script\u003e\n\u003c!-- vt:seo-end --\u003e","brand":"Compufire","offers":[{"title":"Default Title","offer_id":53035872059503,"sku":"139-10017","price":434.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0608\/6734\/6543\/files\/5024-5dea7fae006e0.jpg?v=1777529916","url":"https:\/\/vtwinbikers.com\/products\/compufire-charging-system-32amp-1981-1999-bt-except-efi-139-10017","provider":"Vtwinbikers","version":"1.0","type":"link"}