{"product_id":"skarummer-boat-ignition-switch-for-mercury-mariner-3-position-6-wire-with-2-keys-87-17009a2-a5","title":"SKARUMMER Boat Ignition Switch for Mercury\/Mariner — 3-Position 6-Wire with 2 Keys (87-17009A2\/A5)","description":"\u003cp\u003e\u003cstrong\u003eThe SKARUMMER Boat Ignition Switch is a direct-fit replacement for many Mercury\/Mariner outboard control boxes, delivering a 3-position key switch (OFF–RUN–START), six-wire connection, and two keys for a plug-and-play swap.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eIf your outboard stalls, requires excessive key wiggling, or fails to crank, a worn ignition switch is a likely culprit. This SKARUMMER replacement mirrors the original equipment form and function for Mercury part numbers 87-17009A2 and 87-17009A5 and compatible Sierra MP41070 series control boxes. Built with durable polyester housing and brass contacts, it’s designed to give reliable electrical connectivity and straightforward installation to get your boat back on the water quickly.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this replacement ignition switch restore starting reliability?\u003c\/h3\u003e\n\u003cp\u003eElectrical wear or corroded contacts in the original switch can interrupt power to the starter and accessories. This SKARUMMER unit uses quality brass terminals and a tested polyester body to re-establish solid connections, reducing intermittent starts and key resistance.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eBrass contact points for better conductivity and corrosion resistance\u003c\/li\u003e\n  \u003cli\u003eThree positions: OFF, RUN, START for standard outboard control\u003c\/li\u003e\n  \u003cli\u003eComes with two cut-to-fit keys so you can secure and operate the boat\u003c\/li\u003e\n  \u003cli\u003e100% function-tested before shipment to ensure reliable performance\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill it fit my Mercury or Mariner control box?\u003c\/h3\u003e\n\u003cp\u003eSKARUMMER designed this switch to replace common OEM ignition switches used on many Mercury and Mariner outboards. It lists OE cross-references and fits Sierra MP41070-series components, but fitment should be verified against your control box model before ordering.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDirect replacement for Mercury 87-17009A2 and 87-17009A5 references\u003c\/li\u003e\n  \u003cli\u003eCompatible with Sierra MP41070-1 and MP41070-2 in many installations\u003c\/li\u003e\n  \u003cli\u003eWire colors match factory coding for easier wiring confirmation\u003c\/li\u003e\n  \u003cli\u003eCheck your control box part number and wiring diagram before purchase\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow easy is installation for a DIYer or marine technician?\u003c\/h3\u003e\n\u003cp\u003eInstallation is intended to be straightforward: the wiring harness uses six wires with factory-matching colors to simplify reconnection. No splicing is required in most cases, making it a plug-and-play swap for anyone comfortable with basic boat electrical work.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSix-wire connector matches factory color codes for push-to-choke and ignition\u003c\/li\u003e\n  \u003cli\u003ePlug-and-play replacement—no permanent wire cutting in typical installs\u003c\/li\u003e\n  \u003cli\u003eMounts into existing control box openings using OEM-style dimensions\u003c\/li\u003e\n  \u003cli\u003eIncludes two keys to replace lost or worn originals\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat build quality and warranty support does SKARUMMER provide?\u003c\/h3\u003e\n\u003cp\u003eSKARUMMER uses materials chosen for marine environments—high-performance polyester for the housing and brass for electrical contacts—aiming for durability and dependable conductivity. Each switch is tested before shipping and backed by a 24-month warranty to protect against defects.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDurable polyester housing resists moisture and mechanical wear\u003c\/li\u003e\n  \u003cli\u003eHigh-quality brass terminals for consistent electrical contact\u003c\/li\u003e\n  \u003cli\u003e100% tested units and 24-month manufacturer warranty\u003c\/li\u003e\n  \u003cli\u003eCustomer support available directly from SKARUMMER for fit or function questions\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? Boaters, marine technicians, and DIYers who own Mercury or Mariner outboards and need a reliable, OEM-style ignition switch replacement will find this SKARUMMER unit suitable. It’s particularly useful if your current ignition shows intermittent starting issues, loose-key operation, or visible wear. Always confirm compatibility with your control box model and wiring diagram before purchase to ensure a proper fit and safe installation.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does this switch fit Mercury part 87-17009A2?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. This SKARUMMER switch is a direct replacement for Mercury 87-17009A2 and 87-17009A5; verify your control box model before ordering.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Do I need to splice wires to install it?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No. The six-wire harness uses factory-matching color codes for plug-and-play installation in most applications.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"SKARUMMER","offers":[{"title":"Default Title","offer_id":55167346901335,"sku":"B0933LB56Z","price":41.79,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1050\/1524\/7191\/files\/skarummer-ignition-switch-front-view.jpg?v=1790384392","url":"https:\/\/britishgarage.co.uk\/products\/skarummer-boat-ignition-switch-for-mercury-mariner-3-position-6-wire-with-2-keys-87-17009a2-a5","provider":"British Garage","version":"1.0","type":"link"}