{"product_id":"sierra-18-99240-stator-for-johnson-evinrude-9-9-60-hp-2-cylinder-outboards-5-amp-replaces-oem-581651-1977-1999","title":"Sierra Stator 18-99240 for Johnson\/Evinrude 9.9-60 HP Outboards, 1977-1999, 2 Cylinder 5 Amp","description":"\u003cp\u003eThe Sierra Stator 18-99240 is a 2-cylinder, 5 amp charging stator built for Johnson and Evinrude outboards. It supplies the charge coil and timer base functions needed to keep the ignition system firing correctly and the battery charging while the engine runs. The stator is a direct fit for Johnson\/Evinrude 9.9, 10, 15, 20, 25, 35, 50, 55, and 60 HP engines built from 1977 to 1999, making it a common replacement for owners whose original stator has weakened, cracked, or failed an output test.\u003c\/p\u003e\u003cp\u003eConstructed with a metal core and wound coil assembly, the 18-99240 is sized to bolt into the factory mounting location without modification. It measures 6 x 6 x 1.75 inches and weighs 1.8 pounds. Because a failing stator typically shows up as a no-charge condition, erratic tachometer readings, or a battery that will not hold a charge, replacing it with a correctly rated unit like the 18-99240 restores reliable low-end charging output across this HP range.\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 18-99240\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCylinders:\u003c\/strong\u003e 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 5 Amps\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWattage:\u003c\/strong\u003e 60 watts\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Metal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1.8 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 6 x 6 x 1.75 inches\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eJohnson\/Evinrude 9.9, 10, 15, 20, 25, 35, 50, 55, and 60 HP outboards, 1977-1999\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e763770\u003c\/li\u003e\n\u003cli\u003e581651\u003c\/li\u003e\n\u003cli\u003e585087\u003c\/li\u003e\n\u003cli\u003e584755\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra 18-99240 stator fit?\u003c\/strong\u003e The Sierra Stator 18-99240 fits Johnson and Evinrude outboards rated 9.9, 10, 15, 20, 25, 35, 50, 55, and 60 HP built from 1977 to 1999.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-99240 a 2 cylinder or 3 cylinder stator?\u003c\/strong\u003e It is a 2 cylinder stator rated at 5 amps, matched to the smaller-displacement Johnson\/Evinrude powerheads in the 9.9-60 HP range.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part numbers does this stator replace?\u003c\/strong\u003e Sierra 18-99240 replaces OEM numbers 763770, 581651, 585087, and 584755, so any of those part numbers on your old stator confirms this is the correct replacement.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the stator weigh?\u003c\/strong\u003e The Sierra 18-99240 stator weighs 1.8 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions of the 18-99240 stator?\u003c\/strong\u003e It measures 6 x 6 x 1.75 inches, sized to fit the factory mounting location on the applicable Johnson\/Evinrude powerheads.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the stator made of?\u003c\/strong\u003e The 18-99240 is built with a metal core and wound coil assembly designed for marine ignition and charging duty.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does a stator do on a Johnson\/Evinrude outboard?\u003c\/strong\u003e On these engines the stator provides the charge coil and timer base functions, supplying ignition timing signals and charging current to the battery while the motor runs.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat symptoms indicate my stator needs replacing?\u003c\/strong\u003e A failing stator on these Johnson\/Evinrude engines typically causes a no-charge condition, erratic ignition timing, or a battery that will not hold a charge, which the 18-99240 is designed to correct.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this a genuine Sierra part or a generic aftermarket copy?\u003c\/strong\u003e This is the Sierra 18-99240 stator, sold under Sierra's own part number rather than as an unbranded generic unit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-99240 include mounting hardware?\u003c\/strong\u003e The listing covers the stator assembly itself (18-99240); confirm with your engine's parts diagram whether your application reuses the existing mounting hardware.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan I use this stator on a 40 HP or 70 HP Johnson\/Evinrude?\u003c\/strong\u003e No. The Sierra 18-99240 is specified for 9.9, 10, 15, 20, 25, 35, 50, 55, and 60 HP models only, so it should not be used on HP ratings outside that list.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988439707867,"sku":"SIE-18-99240","price":380.71,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/CDI-173-1651_lg__83017.1558113246.500.750.jpg?v=1785188307","url":"https:\/\/www.goodvibesmarina.com\/products\/sierra-18-99240-stator-for-johnson-evinrude-9-9-60-hp-2-cylinder-outboards-5-amp-replaces-oem-581651-1977-1999","provider":"Good Vibes Marina","version":"1.0","type":"link"}