{"product_id":"sierra-power-trim-relay-mercury-mercruiser-47-5729","title":"Sierra Power Trim Relay – Mercury \u0026 MerCruiser | 47-5729","description":"\u003ch2\u003eSierra Power Trim Relay – Mercury \u0026amp; MerCruiser | 47-5729\u003c\/h2\u003e\u003cp\u003eRestore full power trim and tilt function to your Mercury outboard or MerCruiser sterndrive with this Sierra replacement power trim relay. This 12V relay controls the direction of the trim\/tilt motor — allowing the engine or drive to tilt up and down on command. When the relay fails, the trim system typically stops responding in one or both directions, making it one of the first and most cost-effective components to check before replacing the trim motor itself.\u003c\/p\u003e\u003ch3\u003eCompatible Applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMercury outboard engines with power trim\/tilt systems\u003c\/li\u003e\n\u003cli\u003eMerCruiser sterndrive applications with power trim systems\u003c\/li\u003e\n\u003cli\u003eReplaces Mercury OEM: 87-859217A1\u003c\/li\u003e\n\u003cli\u003eRefer to Sierra’s current application guide to confirm fitment for your specific engine model and year\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e12V relay controls trim motor up\/down direction\u003c\/li\u003e\n\u003cli\u003eBuilt to OEM specifications for reliable switching performance\u003c\/li\u003e\n\u003cli\u003eDirect-fit replacement design\u003c\/li\u003e\n\u003cli\u003eCompact and lightweight for easy access installation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eParts Desk Insights\u003c\/h3\u003e\u003cp\u003eWhen a Mercury or MerCruiser power trim stops working in one direction — or stops entirely — the trim relay is the most common culprit and the lowest-cost fix to try first. Before replacing the trim motor, swap the relay and test. It’s a straightforward diagnosis: if the trim works after replacing the relay, you’re done. If not, the trim motor or pump is the next step. For the Johnson\/Evinrude equivalent, see the \u003ca href=\"\/products\/sierra-power-trim-relay-johnson-evinrude-47-5705\"\u003eSierra Power Trim Relay for Johnson \/ Evinrude (47-5705)\u003c\/a\u003e. If you’ve confirmed the relay is good and need the trim motor itself, see the \u003ca href=\"\/products\/11141378637860\"\u003eARCO Heavy-Duty Tilt\/Trim Motor for OMC Outboards\u003c\/a\u003e or browse our full range of \u003ca href=\"\/products\/11141378474020\"\u003etilt\/trim motors\u003c\/a\u003e for your application.\u003c\/p\u003e","brand":"LNS","offers":[{"title":"Default Title","offer_id":51250824314916,"sku":"47-5729","price":43.69,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5799\/7604\/files\/47-5729.jpg?v=1786510729","url":"https:\/\/marisolmarine.com\/products\/sierra-power-trim-relay-mercury-mercruiser-47-5729","provider":"Marisol Marine Company","version":"1.0","type":"link"}