{"product_id":"arco-mercury-mercruiser-starter-solenoid-12v-isolated-base-57-sw275","title":"ARCO Mercury \/ MerCruiser Starter Solenoid – 12V Isolated Base (57-SW275)","description":"\u003ch2\u003eARCO Mercury \/ MerCruiser Starter Solenoid – 12V Isolated Base\u003c\/h2\u003e\u003cp\u003eRestore reliable starting to your Mercury or MerCruiser engine with this direct-fit 12-volt starter solenoid. The isolated-base design provides clean electrical isolation from the engine block, making it the correct choice for Mercury and MerCruiser applications that require a floating ground. Built to withstand the corrosion, vibration, and moisture exposure of the marine environment, this solenoid installs without modification and gets your starting system back to full operation.\u003c\/p\u003e\u003ch3\u003eCompatible Applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMercury outboard engines requiring a 12V isolated-base starter solenoid\u003c\/li\u003e\n\u003cli\u003eMerCruiser sterndrive engines requiring a 12V isolated-base starter solenoid\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 12V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBase Type:\u003c\/strong\u003e Isolated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 57-SW275\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eParts Desk Insights\u003c\/h3\u003e\u003cp\u003eThis is the right solenoid when your Mercury or MerCruiser application specifically calls for an isolated-base unit — a common requirement on many Mercury outboards and MerCruiser sterndrives where the solenoid must not share a ground path with the engine block. If you're unsure whether your engine needs an isolated or grounded base, check your wiring diagram before ordering. For OMC applications, see the \u003ca href=\"\/products\/arco-omc-solenoid-12v-grounded-base-57-sw268\"\u003eARCO OMC Solenoid – 12V Grounded Base (57-SW268)\u003c\/a\u003e. For higher-demand or multi-engine setups, consider the \u003ca href=\"\/products\/arco-heavy-duty-starter-solenoid-mercruiser-omc-volvo-penta-sw463\"\u003eARCO Heavy-Duty Starter Solenoid – MerCruiser, OMC, Volvo Penta (SW463)\u003c\/a\u003e. Also available: \u003ca href=\"\/products\/arco-12v-starter-solenoid-for-mercury-mercruiser-sw109\"\u003eARCO 12V Starter Solenoid for Mercury \u0026amp; MerCruiser (SW109)\u003c\/a\u003e.\u003c\/p\u003e","brand":"LNS","offers":[{"title":"Default Title","offer_id":51250829918244,"sku":"57-SW275","price":52.79,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5799\/7604\/files\/57-SW275.jpg?v=1786510792","url":"https:\/\/marisolmarine.com\/products\/arco-mercury-mercruiser-starter-solenoid-12v-isolated-base-57-sw275","provider":"Marisol Marine Company","version":"1.0","type":"link"}