{"product_id":"digital-optical-power-pack-for-johnson-evinrude-omc-6-cylinder-outboards-sierra-18-99296","title":"Sierra Digital Optical Power Pack for OMC 6-Cylinder Outboard Engines - 18-99296","description":"\u003cp\u003eThe Sierra 18-99296 is a digital optical power pack built for OMC 6-cylinder outboard engines. As the ignition power module, it manages spark timing and delivers the high-voltage output the ignition coils need to fire correctly across all six cylinders, making it a core component for restoring reliable starting and smooth running on engines with a failing or intermittent ignition module. Using a digital optical design gives the unit precise timing signal detection compared to older mechanical trigger systems, which helps maintain consistent performance as the engine ages.\u003c\/p\u003e\u003cp\u003eThis power pack is cataloged under Sierra's Evinrude Outboard Power Packs line, confirming its application to Johnson\/Evinrude OMC 6-cylinder outboard powerheads. It is a direct fit replacement component intended to be swapped in place of the original ignition power pack on the applicable 6-cylinder OMC engine.\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 18-99296\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Category:\u003c\/strong\u003e Evinrude Outboard Power Packs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine Application:\u003c\/strong\u003e OMC 6-cylinder outboard engines\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIgnition Type:\u003c\/strong\u003e Digital optical power pack\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1.9 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282395889\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eDesigned for OMC 6-cylinder outboard engines within Sierra's Johnson\/Evinrude power pack line.\u003c\/p\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra 18-99296 power pack fit?\u003c\/strong\u003e The Sierra 18-99296 is built for OMC 6-cylinder outboard engines in the Johnson\/Evinrude line.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-99296 a digital or analog power pack?\u003c\/strong\u003e It is a digital optical power pack, using an optical timing design rather than an older mechanical trigger system.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-99296 power pack weigh?\u003c\/strong\u003e This power pack weighs 1.9 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for the Sierra 18-99296?\u003c\/strong\u003e The UPC for the Sierra 18-99296 power pack is 808282395889.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does a power pack do on an outboard engine?\u003c\/strong\u003e On an OMC 6-cylinder outboard, the power pack is the ignition module that times and delivers the high-voltage output needed to fire each cylinder's spark plug.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-99296 sold under the Evinrude brand?\u003c\/strong\u003e No, it is sold as Sierra part number 18-99296, cataloged in Sierra's Evinrude Outboard Power Packs category for OMC 6-cylinder applications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill the 18-99296 work on a 4-cylinder OMC engine?\u003c\/strong\u003e No, the 18-99296 is designated specifically for OMC 6-cylinder outboard engines, not 4-cylinder models.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat symptoms indicate a power pack needs replacement?\u003c\/strong\u003e A failing power pack commonly causes hard starting, misfiring, or intermittent ignition on the OMC 6-cylinder engines the Sierra 18-99296 is designed for.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-99296 a new or remanufactured unit?\u003c\/strong\u003e The 18-99296 is a new digital optical power pack, not a remanufactured or used unit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat category does part number 18-99296 fall under?\u003c\/strong\u003e Part number 18-99296 is listed in the Evinrude Outboard Power Packs category for OMC 6-cylinder engines.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988441673947,"sku":"SIE-18-99296","price":281.17,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/CDI-113-4986_lg__03097.1722518720.500.750.jpg?v=1785188432","url":"https:\/\/www.goodvibesmarina.com\/products\/digital-optical-power-pack-for-johnson-evinrude-omc-6-cylinder-outboards-sierra-18-99296","provider":"Good Vibes Marina","version":"1.0","type":"link"}