{"product_id":"sierra-18-99441-trigger-for-mercury-mariner-2-cylinder-outboards","title":"Sierra Trigger for Mercury Mariner 2-Cylinder Outboards, Part Number 18-99441","description":"\u003cp\u003eThe Sierra 18-99441 is an ignition trigger built for Mercury and Mariner 2-cylinder outboard engines. The trigger is a core component of the outboard's ignition system, working with the stator and switch box to signal spark timing to each cylinder as the flywheel rotates. Replacing a worn or failed trigger restores consistent spark timing, which is essential for reliable starting, smooth idle, and correct engine performance across the rpm range.\u003c\/p\u003e\u003cp\u003eThis trigger is sold under Sierra part number 18-99441 and is listed within Sierra's Mercury Outboard Stators \u0026amp; Triggers category, so it is cataloged specifically as an ignition-system replacement part for Mercury and Mariner 2-cylinder outboard applications. Boat owners and marine technicians use parts like this when diagnosing no-spark, intermittent spark, or misfire conditions traced back to the ignition trigger rather than the coil, stator, or switch box.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-99441\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Mercury Mariner Trigger - 2 Cyl.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Mercury Outboard Stators \u0026amp; Triggers\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.6 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282394790\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra 18-99441 trigger fit?\u003c\/strong\u003e Sierra part number 18-99441 is cataloged as a trigger for Mercury and Mariner 2-cylinder outboard engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat part is Sierra 18-99441?\u003c\/strong\u003e It is an ignition trigger, the component that signals spark timing to the ignition system as the outboard's flywheel rotates.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-99441 trigger weigh?\u003c\/strong\u003e The Sierra 18-99441 trigger weighs 0.6 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this trigger sold by Sierra or a third-party brand?\u003c\/strong\u003e This trigger is a Sierra branded part, listed under Sierra part number 18-99441.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat symptoms indicate a failing ignition trigger like the 18-99441?\u003c\/strong\u003e A worn or failed trigger on a Mercury or Mariner 2-cylinder outboard commonly causes no-spark, intermittent spark, or misfire conditions traced to the ignition system.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-99441 work with 4-cylinder or 6-cylinder Mercury outboards?\u003c\/strong\u003e No, Sierra 18-99441 is specifically cataloged for Mercury and Mariner 2-cylinder outboard engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat category does Sierra 18-99441 fall under?\u003c\/strong\u003e Sierra 18-99441 is listed in the Mercury Outboard Stators \u0026amp; Triggers category.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for the Sierra Mercury Mariner trigger?\u003c\/strong\u003e The UPC for Sierra part 18-99441 is 808282394790.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the trigger work with the stator and switch box as a system?\u003c\/strong\u003e Yes, the ignition trigger works together with the stator and switch box to control spark timing on a Mercury or Mariner 2-cylinder outboard.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-99441 trigger a direct replacement part?\u003c\/strong\u003e Sierra 18-99441 is cataloged as a replacement ignition trigger for Mercury and Mariner 2-cylinder outboard engines.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988444164315,"sku":"SIE-18-99441","price":132.62,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/CDI-134-3960-2_lg__56639.1558112645.500.750.jpg?v=1785329188","url":"https:\/\/www.goodvibesmarina.com\/products\/sierra-18-99441-trigger-for-mercury-mariner-2-cylinder-outboards","provider":"Good Vibes Marina","version":"1.0","type":"link"}