{"product_id":"voltage-regulator-for-johnson-evinrude-25-70-hp-40-50-hp-outboards-10-amp-replaces-oem-584476-sierra-18-99412","title":"Sierra 18-99412 Johnson\/Evinrude Voltage Regulator, 10 Amp, Replaces 584476, 585001","description":"\u003cp\u003eThe Sierra 18-99412 is a 10 amp voltage regulator built for Johnson\/Evinrude outboard engines. It manages charging system voltage output from the engine's alternator\/stator, protecting the battery and onboard electronics from overcharging while maintaining consistent electrical performance. The housing is aluminum, providing durability and heat dissipation in the marine engine compartment where the regulator is mounted.\u003c\/p\u003e\u003cp\u003eThis regulator is a direct fit for Johnson\/Evinrude 2, 3, and 4 cylinder outboard engines across a range of horsepower ratings, including 2 cylinder models with a three-wire trigger, 3 cylinder models using the S.L.O.W. (Speed Limiting Overheat Warning) system, and the 4 cylinder 4-stroke 60 degree engine. It replaces OEM part numbers 584476 and 585001, making it a straightforward swap for boat owners repairing a failed or degraded factory regulator. At 0.6 pounds, it is a compact, lightweight component that mounts to the engine using the factory hardware locations.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-99412\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.6 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Aluminum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 10 Amp\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting Type:\u003c\/strong\u003e Transom Mount\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Type:\u003c\/strong\u003e Gasoline\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine Type:\u003c\/strong\u003e 4 Stroke\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Equivalent Part Number:\u003c\/strong\u003e 584476, 585001\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282394431\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eJohnson\/Evinrude 40 and 50 HP (2 cylinder with three-wire trigger), 1992-2005\u003c\/li\u003e\n\u003cli\u003eJohnson\/Evinrude 25, 40, 50, 60, 65 and 70 HP (3 cylinder with S.L.O.W.), 1992-2001\u003c\/li\u003e\n\u003cli\u003eJohnson\/Evinrude 105 HP (4 cylinder 4-stroke 60 degree engine), 2000-2001\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e584476\u003c\/li\u003e\n\u003cli\u003e585001\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra 18-99412 voltage regulator fit?\u003c\/strong\u003e The Sierra 18-99412 fits Johnson\/Evinrude 40 and 50 HP 2 cylinder outboards with a three-wire trigger, 25, 40, 50, 60, 65 and 70 HP 3 cylinder outboards using the S.L.O.W. System, and the 105 HP 4 cylinder 4-stroke 60 degree engine.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part numbers does this regulator replace?\u003c\/strong\u003e Sierra 18-99412 replaces OEM part numbers 584476 and 585001, so it is a direct swap for either of those original Johnson\/Evinrude regulators.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many amps is the 18-99412 rated for?\u003c\/strong\u003e This regulator is rated at 10 amps, matching the output of the Johnson\/Evinrude charging systems it is designed to serve.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-99412 weigh?\u003c\/strong\u003e The Sierra 18-99412 voltage regulator weighs 0.6 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the regulator housing made of?\u003c\/strong\u003e The housing on the 18-99412 is aluminum, which helps dissipate heat and resist corrosion in the engine compartment.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill 18-99412 work on a 2 cylinder Johnson\/Evinrude engine?\u003c\/strong\u003e Yes, it is compatible with Johnson\/Evinrude 40 and 50 HP 2 cylinder engines that use a three-wire trigger.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes this regulator fit 3 cylinder Johnson\/Evinrude outboards?\u003c\/strong\u003e It fits 25, 40, 50, 60, 65 and 70 HP 3 cylinder Johnson\/Evinrude engines equipped with the S.L.O.W. Speed limiting overheat warning system.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-99412 compatible with 4-stroke engines?\u003c\/strong\u003e Yes, it fits the 105 HP 4 cylinder 4-stroke 60 degree Johnson\/Evinrude engine in addition to the 2 and 3 cylinder applications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat fuel type is this regulator designed for?\u003c\/strong\u003e The Sierra 18-99412 is designed for gasoline-powered Johnson\/Evinrude outboard engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow is the 18-99412 mounted on the engine?\u003c\/strong\u003e This regulator uses a transom mount configuration on the outboard engine.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs 18-99412 a genuine Sierra part?\u003c\/strong\u003e Yes, 18-99412 is the Sierra manufacturer part number for this Johnson\/Evinrude voltage regulator.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988443148507,"sku":"SIE-18-99412","price":218.56,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/CDI-193-4476_lg__26386.1558112856.500.750.jpg?v=1785188253","url":"https:\/\/www.goodvibesmarina.com\/products\/voltage-regulator-for-johnson-evinrude-25-70-hp-40-50-hp-outboards-10-amp-replaces-oem-584476-sierra-18-99412","provider":"Good Vibes Marina","version":"1.0","type":"link"}