{"product_id":"tikscience-marine-ignition-switch-mp41000-for-mercury-sierra-integrated-choke-heavy-duty-replacement","title":"TIKSCIENCE Marine Ignition Switch MP41000 for Mercury \u0026 Sierra — Integrated Choke, Heavy-Duty Replacement","description":"\u003cp\u003e\u003cstrong\u003eThe TIKSCIENCE MP41000 marine ignition switch is a direct-replacement starter and choke-control unit designed to fit most Mercury and Sierra outboard models for reliable cold-start performance and improved onboard safety.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis heavy-duty replacement ignition switch combines a keyed starter, integrated choke control and a locking function in a compact modular housing. Built from flame-retardant ABS and chrome-plated brass, it’s engineered to withstand marine environments, frequent use and the occasional spray of saltwater. The MP41000 is offered as a compatible swap for part numbers such as 87-88107, 87-88107A5, 17393 and related MP-series codes, making it a convenient service part for boat owners and marine technicians.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this ignition switch improve starting in cold or humid conditions?\u003c\/h3\u003e\n\u003cp\u003eThe MP41000 includes an integrated choke control that helps adjust the air-fuel mixture during start-up, reducing crank time and helping the engine reach idle sooner. That feature is particularly useful when temperatures are low or humidity is high, conditions that commonly cause extended cranking.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eBuilt-in choke control adjusts air intake for faster ignition.\u003c\/li\u003e\n  \u003cli\u003eOptimized for cold starts and damp environments.\u003c\/li\u003e\n  \u003cli\u003eReduces wear from prolonged starter motor engagement.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this switch fit my Mercury or Sierra outboard?\u003c\/h3\u003e\n\u003cp\u003eCompatibility covers a wide range of Mercury and Sierra models — the MP41000 is designed as a direct fit for many common factory and aftermarket installations. It replaces multiple part numbers, simplifying selection when servicing engines with legacy or OEM part codes.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eMatches many Mercury and Sierra outboard models.\u003c\/li\u003e\n  \u003cli\u003eDirect replacement for 87-88107, 87-88107A5, 17393 and similar parts.\u003c\/li\u003e\n  \u003cli\u003eModular design minimizes wiring changes during swap-out.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIs the MP41000 durable enough for regular marine use?\u003c\/h3\u003e\n\u003cp\u003eYes — materials and construction prioritize durability in harsh conditions. The housing uses flame-retardant ABS while internal conductive parts are brass with a chrome finish to resist corrosion and mechanical wear.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFlame-retardant ABS resists heat and impact.\u003c\/li\u003e\n  \u003cli\u003eChrome-plated brass contacts offer corrosion resistance.\u003c\/li\u003e\n  \u003cli\u003eEngineered for frequent use and long service life.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow simple is installation and maintenance?\u003c\/h3\u003e\n\u003cp\u003eThe MP41000’s modular design keeps installation straightforward: match wiring and mounting points to the original assembly and fasten in place. Minimal upkeep is required beyond standard inspection for secure connections and corrosion control.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003ePlug-and-play wiring for many compatible models.\u003c\/li\u003e\n  \u003cli\u003eMounts using the same footprint as original units in most cases.\u003c\/li\u003e\n  \u003cli\u003eLow maintenance — inspect contacts and seals periodically.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho this is for: The TIKSCIENCE MP41000 is aimed at boat owners, marina mechanics and marine service shops needing a dependable replacement ignition switch that restores reliable starting and improves safety. It suits operators of older Mercury or Sierra outboards seeking a robust aftermarket part matched to common OEM numbers, as well as anyone who wants an easy-install unit built to resist the rigors of saltwater and frequent use.\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 replace part number 87-88107?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, the MP41000 is designed as a direct replacement for 87-88107 and several related OEM numbers.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I install this switch myself?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Most users with basic tools can install it; the modular design minimizes wiring changes, but consult a technician if unsure.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"TIKSCIENCE","offers":[{"title":"Default Title","offer_id":48084368883870,"sku":"B0F3CYDV85","price":31.84,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/tikscience-mp41000-front-panel.jpg?v=1785851953","url":"https:\/\/northtrailauto.ca\/products\/tikscience-marine-ignition-switch-mp41000-for-mercury-sierra-integrated-choke-heavy-duty-replacement","provider":"North Trail Auto","version":"1.0","type":"link"}