{"product_id":"sierra-18-99481-voltage-regulator-for-mercury-and-mariner-outboards","title":"Sierra Voltage Regulator 18-99481 for Mercury Mariner Outboard Engines","description":"\u003cp\u003eThe Sierra 18-99481 is a voltage regulator built as a replacement for Mercury Mariner outboard engines. A voltage regulator manages the charging output from the engine's alternator or stator, keeping the electrical system supplied with a steady, controlled voltage for the battery and onboard electronics. Sierra manufactures this component to match the fit, connection points, and electrical performance of the original equipment it replaces on covered Mercury Mariner outboard applications.\u003c\/p\u003e\u003cp\u003eThis part is sold individually as a direct-fit replacement unit. It is intended for boat owners and marine technicians servicing Mercury Mariner outboard charging systems who need a reliable regulator without sourcing a full OEM assembly. The unit weighs 1.9 pounds as shipped.\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 18-99481\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Voltage Regulator\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Engine Brand:\u003c\/strong\u003e Mercury Mariner\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Outboard Engines\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1.9 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282396039\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eDesigned for Mercury Mariner outboard engines.\u003c\/p\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cp\u003eNo OEM cross-reference numbers are specified for this part.\u003c\/p\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat is the Sierra 18-99481?\u003c\/strong\u003e The Sierra 18-99481 is a voltage regulator designed as a replacement part for Mercury Mariner outboard engines, controlling the charging voltage sent to the battery and electrical system.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the 18-99481 voltage regulator fit?\u003c\/strong\u003e This regulator is built for Mercury Mariner outboard engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-99481 weigh?\u003c\/strong\u003e The Sierra 18-99481 voltage regulator weighs 1.9 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-99481 a genuine Mercury Mariner part or aftermarket?\u003c\/strong\u003e The 18-99481 is manufactured by Sierra as a replacement part for Mercury Mariner outboard engines, not an original Mercury Marine branded part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does a voltage regulator do on an outboard engine?\u003c\/strong\u003e A voltage regulator, such as the Sierra 18-99481, controls the output from the engine's charging system so the battery and electronics receive a steady, regulated voltage instead of raw alternator or stator output.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included when I order the 18-99481?\u003c\/strong\u003e Ordering the Sierra 18-99481 gets you the voltage regulator unit itself.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan I install the Sierra 18-99481 myself?\u003c\/strong\u003e The Sierra 18-99481 is sold as a direct-fit replacement regulator for Mercury Mariner outboards, and installation follows the same mounting and wiring connections as the original regulator it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the Sierra 18-99481 come with a warranty?\u003c\/strong\u003e Warranty terms for the Sierra 18-99481 voltage regulator are set by Sierra and the selling retailer at time of purchase.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat brand manufactures part number 18-99481?\u003c\/strong\u003e Part number 18-99481 is manufactured by Sierra.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy would I need to replace my outboard's voltage regulator?\u003c\/strong\u003e A failing voltage regulator can cause overcharging or undercharging of the battery on a Mercury Mariner outboard, and the Sierra 18-99481 is offered as a replacement for that component.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988444885211,"sku":"SIE-18-99481","price":525.17,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/CDI-194-8736K1_lg__78557.1558114069.500.750.jpg?v=1785329190","url":"https:\/\/www.goodvibesmarina.com\/products\/sierra-18-99481-voltage-regulator-for-mercury-and-mariner-outboards","provider":"Good Vibes Marina","version":"1.0","type":"link"}