{"product_id":"compufire-stator-40-amp-compu-fire-3-phase-system-evo-139-10014","title":"Compufire 40 AMP 3 Phase Stator Vented Rotor - Harley Evolution Touring Softail Dyna","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;\"\u003eEnsure your Harley Evolution V-twin has all the power it needs with the Compufire 40 AMP 3 Phase Stator. This high-output stator is engineered to provide superior charging, keeping your electrical system robust even with demanding accessories.\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;\"\u003e40-amp high-output charging capacity\u003c\/li\u003e\n\u003cli style=\"margin:3px 0;\"\u003eVented rotor dissipates heat effectively\u003c\/li\u003e\n\u003cli style=\"margin:3px 0;\"\u003eMaintains 14.25V output from idle\u003c\/li\u003e\n\u003cli style=\"margin:3px 0;\"\u003eNarrow profile fits OEM primary covers\u003c\/li\u003e\n\u003cli style=\"margin:3px 0;\"\u003eEnhances overall electrical system reliability\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe Compufire 40 AMP 3 Phase Stator is a vital upgrade for Harley-Davidson Softail, Dyna, and FLT models equipped with Evolution engines and OEM primary covers. Unlike stock units, its high-output design and vented rotor work together to dissipate heat more effectively, allowing the stator to maintain consistent charging performance under heavy loads. This means more reliable power for your lights, ignition, and any aftermarket electronics.\u003c\/p\u003e\u003ch3\u003eReliable, High-Output Charging for Your V-Twin\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e40-amp output capacity for ample electrical power\u003c\/li\u003e\n\u003cli\u003eVented rotor design for improved heat dissipation and longevity\u003c\/li\u003e\n\u003cli\u003eHigh-output voltage regulator maintains 14.25V from idle\u003c\/li\u003e\n\u003cli\u003eNarrow profile fits perfectly within OEM primary covers\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eMaintain Peak Electrical System Performance\u003c\/h3\u003e\u003cp\u003eUpgrading to a Compufire 40 AMP stator is a smart move for any rider looking to enhance their Harley's electrical system reliability or power additional accessories. The three-phase design ensures smooth and efficient power generation, while the vented rotor keeps operating temperatures down, extending the life of your charging system components. This stator is a direct fit for models with OEM primary covers, making installation straightforward.\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 55404\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 694342547981\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOutput:\u003c\/strong\u003e 40 amp\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 2 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 3 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;\"\u003eWill this 40 AMP stator fit my fuel-injected Harley?\u003c\/p\u003e\n\u003cp style=\"margin:0;line-height:1.6;\"\u003eNo, this Compufire stator is specifically designed for carbureted Harley-Davidson Evolution models with OEM primary covers and is not compatible with EFI-equipped motorcycles.\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;\"\u003eDoes the vented rotor actually make a difference in cooling?\u003c\/p\u003e\n\u003cp style=\"margin:0;line-height:1.6;\"\u003eYes, the vented rotor design significantly improves airflow and reduces heat buildup within the primary, allowing the stator to operate cooler and maintain higher output, especially during sustained riding.\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 use this stator with an aftermarket primary cover?\u003c\/p\u003e\n\u003cp style=\"margin:0;line-height:1.6;\"\u003eThis stator is designed to fit Harley-Davidson models with OEM primary covers. While it may fit some aftermarket covers, we recommend confirming compatibility before purchase.\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 40 AMP 3 Phase Stator Vented Rotor - Harley Evolution Touring Softail Dyna\",\"item\":\"https:\/\/vtwinbikers.com\/products\/compufire-stator-40-amp-compu-fire-3-phase-system-evo-139-10014\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Will this 40 AMP stator fit my fuel-injected Harley?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No, this Compufire stator is specifically designed for carbureted Harley-Davidson Evolution models with OEM primary covers and is not compatible with EFI-equipped motorcycles.\"}},{\"@type\":\"Question\",\"name\":\"Does the vented rotor actually make a difference in cooling?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes, the vented rotor design significantly improves airflow and reduces heat buildup within the primary, allowing the stator to operate cooler and maintain higher output, especially during sustained riding.\"}},{\"@type\":\"Question\",\"name\":\"Can I use this stator with an aftermarket primary cover?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"This stator is designed to fit Harley-Davidson models with OEM primary covers. While it may fit some aftermarket covers, we recommend confirming compatibility before purchase.\"}}]}\u003c\/script\u003e\n\u003c!-- vt:seo-end --\u003e","brand":"Compufire","offers":[{"title":"Default Title","offer_id":53035871895663,"sku":"139-10014","price":258.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0608\/6734\/6543\/files\/3f49-5dea7f8fbb202.jpg?v=1777529914","url":"https:\/\/vtwinbikers.com\/products\/compufire-stator-40-amp-compu-fire-3-phase-system-evo-139-10014","provider":"Vtwinbikers","version":"1.0","type":"link"}