{"product_id":"hemrunk-mp41000-marine-push-to-choke-magneto-ignition-switch-7-8-mount-includes-2-keys","title":"HEMRUNK MP41000 marine push-to-choke magneto ignition switch — 7\/8\" mount, includes 2 keys","description":"\u003cp\u003e\u003cstrong\u003eThe HEMRUNK MP41000 is a marine-grade push-to-choke magneto ignition switch with two keys, compatible with many Sierra and Mercury outboard engines.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis compact ignition switch replaces factory units and provides Off–Run–Start operation, a built-in push-to-choke function and six electrical terminals to integrate into common marine wiring. Designed to fit a 7\/8\" mounting hole and accommodate a 5\/8\" panel thickness, the MP41000 is a direct-replacement option referenced by Sierra and Mercury part numbers.\u003c\/p\u003e\n\n\u003ch3\u003eWhat engines and part numbers work with this switch?\u003c\/h3\u003e\n\u003cp\u003eThe MP41000 is compatible with a wide range of Sierra and Mercury magneto ignition systems. It is listed under several equivalent part numbers used by OEM and aftermarket suppliers.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFits Sierra MP41000 and MP52000 reference numbers.\u003c\/li\u003e\n  \u003cli\u003eInterchanges with Mercury numbers such as 87-88107, 87-17393 and related variants.\u003c\/li\u003e\n  \u003cli\u003eAlso cross-referenced to SEA-Dog 420381-1 for some installations.\u003c\/li\u003e\n  \u003cli\u003eGood option for older outboards where these part numbers are specified.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does the push-to-choke feature simplify starting?\u003c\/h3\u003e\n\u003cp\u003eThe integrated push-to-choke button replaces a separate choke lever or throttle-mounted switch, making cold starts straightforward. One control on the dash handles choke engagement while keeping the ignition accessible with included keys.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003ePush-to-choke activates enrichment without an added throttle switch.\u003c\/li\u003e\n  \u003cli\u003eSimplifies dash layout and reduces wiring points.\u003c\/li\u003e\n  \u003cli\u003eWorks with magneto ignition circuits for reliable starting.\u003c\/li\u003e\n  \u003cli\u003eIncluded keys lock the ignition to prevent unauthorized starts.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat are the physical and electrical installation details?\u003c\/h3\u003e\n\u003cp\u003eThis switch is intended for panel-mount installation and connects via six terminals, covering typical Off, Run and Start circuits. Confirm panel hole size and terminal layout before ordering to ensure proper fit and wiring compatibility.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eMounting hole required: 7\/8\" diameter.\u003c\/li\u003e\n  \u003cli\u003ePanel accommodation up to 5\/8\" thick for secure mounting.\u003c\/li\u003e\n  \u003cli\u003eSix electrical terminals support standard magneto wiring and starter circuit.\u003c\/li\u003e\n  \u003cli\u003eThree-position operation: Off, Run, Start for common outboard controls.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat comes in the box and what should I expect on the boat?\u003c\/h3\u003e\n\u003cp\u003eEach purchase includes the ignition switch body and two cut keys so you can install and secure the system right away. The unit is pre-wired with terminals ready for spade connectors or soldered connections, depending on your setup.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003ePackage includes one MP41000 ignition switch plus two keys.\u003c\/li\u003e\n  \u003cli\u003eReady for standard marine electrical connections at the terminals.\u003c\/li\u003e\n  \u003cli\u003eCompact housing designed for flush panel mounting on instrument clusters.\u003c\/li\u003e\n  \u003cli\u003eUse with compatible Sierra\/Mercury magneto engines for best results.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? The HEMRUNK MP41000 is suited for boat owners, mechanics and marine hobbyists replacing an aging or failed ignition switch on compatible Sierra or Mercury outboards. It’s especially useful when you want a simple dash setup with built-in choke function and secure keyed ignition—ideal for maintenance, restoration projects, or upgrading older boats where the listed part numbers match your engine's requirements.\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 the MP41000 fit a 7\/8\" dash hole?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The MP41000 is designed to mount in a 7\/8\" diameter hole and supports panels up to 5\/8\" thick.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Are keys included with the ignition switch?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The package contains the MP41000 ignition switch and two matching keys for the keyed lock.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"HEMRUNK","offers":[{"title":"Default Title","offer_id":48086826483870,"sku":"B0H1VPQGQB","price":31.98,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/hemrunk-mp41000-front-panel-view.jpg?v=1785906872","url":"https:\/\/northtrailauto.ca\/products\/hemrunk-mp41000-marine-push-to-choke-magneto-ignition-switch-7-8-mount-includes-2-keys","provider":"North Trail Auto","version":"1.0","type":"link"}