{"product_id":"sierra-18-99432-trigger-for-mercury-mariner-6-cylinder-outboards","title":"Sierra Trigger for Mercury Mariner 6-Cylinder Outboards, Part 18-99432","description":"\u003cp\u003eThe Sierra 18-99432 is a trigger assembly built for Mercury Mariner 6-cylinder outboard engines. As part of the ignition system, the trigger works with the flywheel to signal the engine's timing components, helping the engine fire correctly at the right moment in each cylinder's cycle. Replacing a worn or failing trigger is a common step when diagnosing ignition issues such as hard starting, rough running, or intermittent misfires on applicable 6-cylinder Mercury Mariner outboards.\u003c\/p\u003e\u003cp\u003eThis part is sold under Sierra's marine parts line, which supplies replacement components for outboard and sterndrive engines. It is cataloged specifically for 6-cylinder Mercury Mariner applications, so it is intended as a direct fit for engines in that configuration rather than a universal part.\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 18-99432\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Mercury Mariner Trigger - 6 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 0.5 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282394639\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e6-cylinder Mercury Mariner outboard engines\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra 18-99432 trigger fit?\u003c\/strong\u003e The Sierra 18-99432 is built for 6-cylinder Mercury Mariner outboard engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does a trigger do in the ignition system?\u003c\/strong\u003e A trigger works with the engine's flywheel to signal the ignition system's timing components so each cylinder fires at the correct point in its cycle.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-99432 a genuine Sierra part?\u003c\/strong\u003e Yes, part number 18-99432 is manufactured and sold under the Sierra marine parts brand.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-99432 trigger weigh?\u003c\/strong\u003e The Sierra 18-99432 trigger weighs 0.5 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat symptoms suggest the trigger needs replacing?\u003c\/strong\u003e Hard starting, rough running, or intermittent misfires on a 6-cylinder Mercury Mariner outboard can point to a failing trigger such as the Sierra 18-99432.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this trigger sold as a single component?\u003c\/strong\u003e The Sierra 18-99432 is sold as an individual trigger assembly under its own part number.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the Sierra 18-99432 work on 4-cylinder Mercury outboards?\u003c\/strong\u003e No, the 18-99432 is cataloged specifically for 6-cylinder Mercury Mariner outboard engines, not 4-cylinder models.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat category of part is the 18-99432?\u003c\/strong\u003e Sierra part 18-99432 falls under Mercury outboard stators and triggers, the ignition-timing component group for these engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan I look up the Sierra 18-99432 by its UPC?\u003c\/strong\u003e Yes, the Sierra 18-99432 trigger carries UPC 808282394639.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the trigger the same part as a stator?\u003c\/strong\u003e No, a trigger and a stator are different components within the same ignition system category; the Sierra 18-99432 is specifically the trigger, not the stator.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988443738331,"sku":"SIE-18-99432","price":159.46,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/CDI-134-6456-15_lg__17066.1558113503.500.750.jpg?v=1785329188","url":"https:\/\/www.goodvibesmarina.com\/products\/sierra-18-99432-trigger-for-mercury-mariner-6-cylinder-outboards","provider":"Good Vibes Marina","version":"1.0","type":"link"}