{"product_id":"sierra-ignition-switch-3-position-magneto-white-push-to-choke-corrosion-resistant-oem-fit","title":"Sierra Ignition Switch 3-Position Magneto, White — Push-to-Choke, Corrosion-Resistant OEM Fit","description":"\u003cp\u003e\u003cstrong\u003eThe Sierra MP41000 is a durable three-position magneto ignition switch with push-to-choke functionality, built to resist corrosion and match OEM fit for marine engines.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eSierra designed the MP41000 to meet the tough demands of high-horsepower outboards and the corrosive marine environment. This white, three-position magneto switch replaces factory units with robust construction—non-conductive housing, an inner cylinder seal, and materials that reduce oxidation—so your vessel's starting and ignition systems stay reliable season after season.\u003c\/p\u003e\n\n\u003ch3\u003eHow does the MP41000 improve corrosion resistance?\u003c\/h3\u003e\n\u003cp\u003eThe MP41000 uses materials and seals intended to limit contact oxidation and electrical issues caused by saltwater exposure. These protective measures help maintain electrical continuity and extend the switch's usable life in a marine setting.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eNon-conductive housing reduces risk of shorts from moisture.\u003c\/li\u003e\n  \u003cli\u003eInner seal between cylinder lock and contact plate prevents water intrusion.\u003c\/li\u003e\n  \u003cli\u003eComponent finishes chosen to minimize oxidation over time.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat features make this ignition switch match OEM replacements?\u003c\/h3\u003e\n\u003cp\u003eThis Sierra unit is produced to correspond with original equipment specifications so it fits and functions like the part it replaces. Fitment and operation are engineered to be compatible with many boat builders and engine manufacturers who use Sierra components.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eThree-position magneto operation for standard on\/off\/run control.\u003c\/li\u003e\n  \u003cli\u003ePush-to-choke capability integrated into the switch action.\u003c\/li\u003e\n  \u003cli\u003e7\/8\" hole size intended for direct replacement in many dashboards.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow easy is installation and everyday use?\u003c\/h3\u003e\n\u003cp\u003eInstallation is straightforward when replacing like-for-like ignition switches thanks to the standard hole size and connector layout. In daily operation, the push-to-choke and clear three-position detents give simple, reliable control during starting and shutoff.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eStandard 7\/8\" mounting hole for compatibility with common dash cutouts.\u003c\/li\u003e\n  \u003cli\u003ePush-to-choke action simplifies cold starts without extra controls.\u003c\/li\u003e\n  \u003cli\u003eNon-conductive casing reduces the need for frequent electrical troubleshooting.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this switch withstand heavy-duty marine use?\u003c\/h3\u003e\n\u003cp\u003eWhile no component is immune to extreme abuse, the MP41000 is built for demanding engine environments with materials that resist corrosion and electrical failure. It’s designed to hold up under regular exposure to marine conditions and high-power engine operation.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eEngineered for high-horsepower applications and frequent use.\u003c\/li\u003e\n  \u003cli\u003eSealed interfaces slow degradation from moisture and salt.\u003c\/li\u003e\n  \u003cli\u003eDurability aimed at matching or exceeding the life of original parts.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The Sierra MP41000 suits boat owners, marine mechanics, and fleet operators who need a reliable, OEM-style ignition switch with push-to-choke for outboards and other marine engines. It’s appropriate for anyone replacing a worn or corroded three-position magneto switch or for builders specifying durable, corrosion-resistant electrical components on new or refitted craft.\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: What size hole does the Sierra MP41000 require?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: The MP41000 is made for a 7\/8\" mounting hole, matching common ignition switch cutouts.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does this switch include a choke function?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — it features push-to-choke operation integrated into the three-position magneto switch.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48086130917534,"sku":"B00144D77E","price":43.69,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/sierra-mp41000-front-view.jpg?v=1785885995","url":"https:\/\/northtrailauto.ca\/products\/sierra-ignition-switch-3-position-magneto-white-push-to-choke-corrosion-resistant-oem-fit","provider":"North Trail Auto","version":"1.0","type":"link"}