{"product_id":"mercury-hrn-power-10-84-899887t13","title":"Mercury – Diesel Engine Unswitched Power Harness 10 Foot | Constant Power Harness | 84-899887T13","description":"\u003ch2\u003eMercury – Diesel Engine Unswitched Power Harness | 10 Ft | Constant Power Harness | 84-899887T13\u003c\/h2\u003e\n\u003cp\u003eThe Mercury diesel engine unswitched power harness (10 ft) is designed for diesel installations that require continuous battery power to the engine or related electrical components. Unlike switched harnesses, this circuit remains live at all times, making it essential for systems that must stay powered regardless of engine state. The extended 10-foot length is ideal for boats where batteries or power distribution points are mounted farther from the engine.\u003c\/p\u003e\n\u003cp\u003eThis harness allows clean, strain-free routing through the engine room without stretching, splicing, or excess slack. Proper OEM wiring ensures steady voltage delivery while protecting terminals and connectors from long-term stress and corrosion in demanding diesel environments.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eUnswitched Power Circuit – Supplies constant battery power at all times\u003c\/li\u003e\n\u003cli\u003e10-Foot Harness Length – Supports longer routing distances in larger engine rooms\u003c\/li\u003e\n\u003cli\u003eDiesel-Specific Design – Built specifically for Mercury diesel electrical systems\u003c\/li\u003e\n\u003cli\u003eOEM Wiring \u0026amp; Connectors – Correct wire gauge, insulation, and factory-sealed terminals\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eEngine \u0026amp; Boat Compatibility\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMercury diesel engines\u003c\/li\u003e\n\u003cli\u003eMechanical control systems\u003c\/li\u003e\n\u003cli\u003eDTS (Digital Throttle \u0026amp; Shift) control systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eImportant Notes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eProvides constant (unswitched) power and remains live even when the engine is off\u003c\/li\u003e\n\u003cli\u003eIntended for diesel applications requiring continuous electrical supply\u003c\/li\u003e\n\u003cli\u003eProper routing is important to prevent chafing and connector strain\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFAQs\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003e1) What is an unswitched power harness used for?\u003c\/strong\u003e\u003cbr\u003eIt supplies constant battery power to components that must remain energized, even when the engine is not running.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e2) When should I choose a 10-foot harness?\u003c\/strong\u003e\u003cbr\u003eChoose a 10-foot harness when batteries or power distribution points are located farther from the engine and shorter harnesses would be stretched or require splicing.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e3) Can this harness be used with DTS systems?\u003c\/strong\u003e\u003cbr\u003eYes. It is compatible with Mercury diesel engines using both mechanical and DTS control systems.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e4) Does this harness turn off with the engine?\u003c\/strong\u003e\u003cbr\u003eNo. This is an unswitched harness and remains powered at all times.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e5) Why use an OEM Mercury power harness instead of aftermarket wiring?\u003c\/strong\u003e\u003cbr\u003eOEM harnesses use the correct wire gauge, sealed connectors, and marine-grade insulation to help prevent voltage drop, corrosion, and long-term electrical failures.\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46936021795107,"sku":"84-899887T13","price":96.46,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/PV479336.jpg?v=1698795805","url":"https:\/\/partsvu.com\/en-ca\/products\/mercury-hrn-power-10-84-899887t13","provider":"PartsVu","version":"1.0","type":"link"}