{"product_id":"chrysler-outboard-magneto-ignition-coil-sierra-18-99275-marine-ignition-coil","title":"Sierra Chrysler Magneto Ignition Coil 18-99275, Cross Reference 185-2370, Outboard Ignition Coil","description":"\u003cp\u003eThe Sierra 18-99275 is a Chrysler magneto ignition coil built for outboard ignition systems. This coil is the component that stores and discharges the high voltage needed to fire the spark plug at the correct moment in the ignition cycle, and it is designed as a direct fit within the Chrysler outboard ignition category. Replacing a weak or failed magneto coil restores consistent spark energy, which in turn supports reliable starting, smoother idle, and steady running under load. A coil that has degraded internally (cracked insulation, breakdown under heat, or internal shorting) is a common cause of intermittent misfires, hard starting, or a no-spark condition on magneto-equipped outboards, and swapping in a fresh coil is one of the most direct ways to rule out or resolve those symptoms.\u003c\/p\u003e\u003cp\u003eThe Sierra 18-99275 carries the Sierra part number 18-99275 and is also cross-referenced under CDI Electronics part number 185-2370, giving buyers a documented equivalent to look up when comparing options. It is built to the compact form factor expected of a magneto coil, keeping installation straightforward for anyone servicing the ignition system on a Chrysler outboard motor.\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 18-99275\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Category:\u003c\/strong\u003e Chrysler Outboard Ignition\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComponent Type:\u003c\/strong\u003e Magneto Ignition Coil\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.4 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross Reference:\u003c\/strong\u003e 185-2370\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eDesigned for Chrysler outboard ignition systems.\u003c\/p\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e185-2370\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat is the Sierra 18-99275 used for?\u003c\/strong\u003e It is a magneto ignition coil for Chrysler outboard ignition systems, responsible for generating the high voltage that fires the spark plug at the correct point in the ignition cycle.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-99275 the same as CDI Electronics 185-2370?\u003c\/strong\u003e Yes, part number 185-2370 is a documented cross-reference for the Sierra 18-99275 magneto ignition coil, so either number identifies the same coil when ordering.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does this ignition coil weigh?\u003c\/strong\u003e The Sierra 18-99275 magneto ignition coil weighs 0.4 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat symptoms indicate this coil needs to be replaced?\u003c\/strong\u003e Hard starting, intermittent misfires, rough idle, or a complete no-spark condition on a Chrysler outboard are common signs that the magneto ignition coil, such as the Sierra 18-99275, has failed or is degrading.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-99275 fit any outboard brand?\u003c\/strong\u003e The Sierra 18-99275 is built specifically within the Chrysler outboard ignition category, not as a universal or multi-brand coil.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan I cross-check this part before ordering?\u003c\/strong\u003e Yes, the Sierra 18-99275 corresponds to CDI Electronics 185-2370, which can be used to confirm compatibility with your existing ignition coil before purchase.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this a genuine Sierra part or an aftermarket equivalent?\u003c\/strong\u003e The 18-99275 is sold under the Sierra part number, with 185-2370 listed as its cross-referenced equivalent, so buyers can match it against either identifier.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included when I order this coil?\u003c\/strong\u003e The order includes one Sierra 18-99275 magneto ignition coil; no additional mounting hardware or wiring is specified.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill this coil work with points-style or electronic ignition?\u003c\/strong\u003e The Sierra 18-99275 is a magneto ignition coil, meaning it is designed for magneto-based ignition systems rather than fully electronic ignition modules.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow do I know if I need this coil versus a different ignition component?\u003c\/strong\u003e If diagnosis points to weak or absent spark output rather than a triggering, timing, or wiring fault, the magneto coil itself, like the Sierra 18-99275, is the component to replace.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988441149659,"sku":"SIE-18-99275","price":133.09,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/CDI-185-2570_lg__68543.1558111691.500.750.jpg?v=1785188431","url":"https:\/\/www.goodvibesmarina.com\/products\/chrysler-outboard-magneto-ignition-coil-sierra-18-99275-marine-ignition-coil","provider":"Good Vibes Marina","version":"1.0","type":"link"}