{"product_id":"sierra-18-6298-marine-alternator-70a-12v-replaces-mercury-863077t-7si-serpentine-pulley-1-97-in-for-mercruiser","title":"Sierra Alternator 18-6298 - 70A 12V for MerCruiser 600 SCI GM V-8 2005-2010","description":"\u003cp\u003eThe Sierra 18-6298 is a 70-amp, 12-volt marine alternator engineered to maintain proper charging levels on inboard and sterndrive engines. It is marine grade, built with heavy-duty bearings and an internal regulator for a longer service life in the harsh marine environment, and it contains high quality stators and heavy-duty rectifiers for maximum charging efficiency. Every Sierra alternator meets or exceeds USCG, SAE J1171, and ISO 8846 safety standards and is 100% load tested before it ships, so it is ready to install and run right out of the box.\u003c\/p\u003e\u003cp\u003eThis alternator uses an internal fan and negative polarity, with an M6-1.0 stud size and a 6-groove, 1.97 inch diameter serpentine pulley on a hinge mount, 7-SI style bracket configuration. It fits MerCruiser 600 SCI models with GM V-8 engines, serial number M952908 and up. It is backed by Sierra's customer satisfaction warranty.\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 18-6298\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 12V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 70A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFan Type:\u003c\/strong\u003e Internal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRegulator Type:\u003c\/strong\u003e Internal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePolarity:\u003c\/strong\u003e Negative\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStud Size:\u003c\/strong\u003e M6-1.0\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePulley Type:\u003c\/strong\u003e 6-Groove, 1.97 inch Diameter Serpentine Pulley\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMount Type:\u003c\/strong\u003e Hinge Mount, 7-SI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 9.4 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282187385\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eMerCruiser 600 SCI, GM V-8, 2005-2010, serial number M952908 and up\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMercury Marine 863077T\u003c\/li\u003e\n\u003cli\u003eMercury Marine 863077-1\u003c\/li\u003e\n\u003cli\u003eArco 20815\u003c\/li\u003e\n\u003cli\u003eDelco 19020611\u003c\/li\u003e\n\u003cli\u003eDelco 19020612\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra 18-6298 alternator fit?\u003c\/strong\u003e The Sierra 18-6298 fits MerCruiser 600 SCI models with GM V-8 engines, serial number M952908 and up.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part numbers does the 18-6298 alternator replace?\u003c\/strong\u003e It replaces Mercury Marine 863077T and 863077-1, Arco 20815, and Delco 19020611 and 19020612, making the Sierra 18-6298 a direct equivalent for those part numbers.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the amperage and voltage output of this alternator?\u003c\/strong\u003e The Sierra 18-6298 is a 12-volt alternator rated at 70 amps, with an internal regulator and internal fan.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-6298 alternator weigh?\u003c\/strong\u003e This alternator weighs 9.4 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat size pulley does the 18-6298 alternator use?\u003c\/strong\u003e It has a 6-groove serpentine pulley with a 1.97 inch diameter.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this alternator positive or negative ground?\u003c\/strong\u003e The Sierra 18-6298 is negative polarity.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat size are the mounting studs on the 18-6298?\u003c\/strong\u003e The stud size is M6-1.0.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-6298 tested before shipping?\u003c\/strong\u003e Yes, every Sierra 18-6298 alternator is 100% load tested for assured reliability before it leaves the factory.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-6298 meet marine safety standards?\u003c\/strong\u003e Yes, it meets or exceeds USCG, SAE J1171, and ISO 8846 safety standards, the standard benchmarks for marine electrical components.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat kind of mount does the 18-6298 alternator use?\u003c\/strong\u003e It uses a hinge mount, 7-SI style bracket configuration.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-6298 covered by a warranty?\u003c\/strong\u003e Yes, the 18-6298 is covered under Sierra's customer satisfaction warranty as part of its standard product line.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-6298 a genuine OEM part or aftermarket?\u003c\/strong\u003e The 18-6298 is a Sierra-manufactured marine replacement alternator, engineered to meet or exceed the original equipment it replaces such as Mercury Marine 863077T and 863077-1.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988357427419,"sku":"SIE-18-6298","price":255.03,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/18-6298__03338.1739458889.500.750.jpg?v=1785188715","url":"https:\/\/www.goodvibesmarina.com\/products\/sierra-18-6298-marine-alternator-70a-12v-replaces-mercury-863077t-7si-serpentine-pulley-1-97-in-for-mercruiser","provider":"Good Vibes Marina","version":"1.0","type":"link"}