{"product_id":"sierra-18-5819-starter-solenoid-for-mercury-outboards-replaces-89-818997a1","title":"Sierra 18-5819 Starter Solenoid, Replaces Mercury 89-818997A1, Fits Mercury 100 HP 4 Cyl. Outboards","description":"\u003cp\u003eThe Sierra 18-5819 is a starter solenoid built for Mercury outboard engines, designed to deliver the high-current switching that engages the starter motor when the ignition key is turned. As the go-between for the low-current ignition circuit and the high-current starter circuit, the solenoid protects the ignition switch from the heavy amperage draw of the starter motor while ensuring a reliable, consistent start every time. Sierra engineers and builds this solenoid to meet or exceed the quality of the original equipment part it replaces, making it a dependable choice for engine owners performing a replacement or repowering an older Mercury outboard.\u003c\/p\u003e\u003cp\u003eThe 18-5819 measures 3 x 3 x 2.5 inches, is rated at 65 watts, and finished in white. It fits Mercury 100 HP 4 Cylinder outboards within a specific serial number range, and is cross-referenced to a wide range of OEM and aftermarket part numbers across Arco, Chrysler, GLM, Mallory, Mercury, and Yamaha, so it can be used as a direct swap for any of those numbers.\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 18-5819\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Starter Solenoid\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Dimensions:\u003c\/strong\u003e 3 x 3 x 2.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.34 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e White\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWattage:\u003c\/strong\u003e 65 watts\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross-Reference:\u003c\/strong\u003e Arco SW097, Chrysler 89-818997A1, GLM 72402, Mallory 9-15115, Mercury 89-818997T1, Mercury 89-818997A, Mercury 89-818997A2, Yamaha 65W-81941-00-00, Yamaha 65W-81941-01-00\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eMercury 100 HP 4 Cylinder outboards, serial numbers D252461 to G359967\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eArco SW097\u003c\/li\u003e\n\u003cli\u003eChrysler 89-818997A1\u003c\/li\u003e\n\u003cli\u003eGLM 72402\u003c\/li\u003e\n\u003cli\u003eMallory 9-15115\u003c\/li\u003e\n\u003cli\u003eMercury 89-818997T1\u003c\/li\u003e\n\u003cli\u003eMercury 89-818997A\u003c\/li\u003e\n\u003cli\u003eMercury 89-818997A2\u003c\/li\u003e\n\u003cli\u003eYamaha 65W-81941-00-00\u003c\/li\u003e\n\u003cli\u003eYamaha 65W-81941-01-00\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-5819 solenoid do?\u003c\/strong\u003e It switches the high-current circuit that engages the starter motor on a Mercury outboard, acting as the link between the ignition switch and the starter so the low-current key circuit is not exposed to the starter's heavy amperage draw.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill the 18-5819 fit my Mercury outboard?\u003c\/strong\u003e The Sierra 18-5819 fits Mercury 100 HP 4 Cylinder outboards within the serial number range D252461 to G359967; check your engine's serial number tag against that range before ordering.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM Mercury part numbers does the 18-5819 replace?\u003c\/strong\u003e It cross-references to Mercury 89-818997T1, 89-818997A, and 89-818997A2, so any of those OEM numbers can be replaced with the Sierra 18-5819.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes this solenoid cross-reference to other brands besides Mercury?\u003c\/strong\u003e Yes, the Sierra 18-5819 also cross-references to Arco SW097, Chrysler 89-818997A1, GLM 72402, Mallory 9-15115, and Yamaha 65W-81941-00-00 and 65W-81941-01-00.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-5819 genuine Mercury OEM or aftermarket?\u003c\/strong\u003e The 18-5819 is a Sierra-manufactured aftermarket solenoid built to meet or exceed the quality of the original Mercury equipment part it replaces, not a Mercury-branded OEM part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions and weight of the 18-5819 solenoid?\u003c\/strong\u003e The 18-5819 measures 3 x 3 x 2.5 inches and weighs 0.34 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color and wattage rating does this solenoid have?\u003c\/strong\u003e The Sierra 18-5819 is finished in white and carries a 65 watt rating.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-5819 the same solenoid as the Sierra 18-5834?\u003c\/strong\u003e No, 18-5819 and 18-5834 are separate Sierra part numbers used across different Mercury outboard applications and serial ranges, so they are not interchangeable by default; confirm your engine's serial number to select the correct one.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included when I order the 18-5819?\u003c\/strong\u003e You receive one Sierra 18-5819 starter solenoid, ready to install in place of the OEM unit it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow do I know if my starter solenoid needs replacing?\u003c\/strong\u003e A failing solenoid on a Mercury outboard typically shows up as a clicking sound with no starter engagement, an intermittent or no-start condition, or a starter that stays engaged after the key is released; the Sierra 18-5819 is designed as a direct replacement for these symptoms on compatible 100 HP 4 Cylinder engines.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988324954331,"sku":"SIE-18-5819","price":42.48,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-5819_lg__35656.1558127644.500.750.jpg?v=1785188916","url":"https:\/\/www.goodvibesmarina.com\/products\/sierra-18-5819-starter-solenoid-for-mercury-outboards-replaces-89-818997a1","provider":"Good Vibes Marina","version":"1.0","type":"link"}