{"product_id":"sierra-18-99225-marine-stator-for-mercury-mariner-6-25-hp-2-stroke-outboards-1997-2005-replaces-oem-855721a-4","title":"Sierra 18-99225 Red Stator for Mercury\/Mariner 6-25 HP Outboards, Replaces 855721A4","description":"\u003cp\u003eThe Sierra 18-99225 is a red stator built to power the ignition system on compatible Mercury and Mariner outboard engines. The stator mounts under the flywheel and generates the electrical current the ignition system needs to fire the spark plugs, making it a core component for engines that will not start or run erratically due to a failed or weakening charging coil. This is a direct-fit replacement stator, engineered to restore reliable spark output without modification to the surrounding ignition components.\u003c\/p\u003e\u003cp\u003eThis stator is designed for Mercury\/Mariner 2-stroke outboard engines equipped with four-magnet flywheels, covering the 6, 8, 9.9, 10, 15, 20 and 25 HP engine range built in the 1997-2005 span. It is identified by its red housing color, a visual cue used to distinguish it from other stator variants in the Mercury\/Mariner lineup, so confirming the red color along with the horsepower and flywheel type helps ensure correct fitment before ordering.\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 18-99225\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Red\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.7 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282393922\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\u003eEngine Fitment:\u003c\/strong\u003e Mercury\/Mariner 2-stroke outboards with four-magnet flywheels, 6, 8, 9.9, 10, 15, 20 and 25 HP (1997-2005)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross Reference:\u003c\/strong\u003e 855721A4, 855721T8, 721851\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eMercury\/Mariner 2-stroke outboards, 6, 8, 9.9, 10, 15, 20 and 25 HP, with four-magnet flywheels (1997-2005)\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e855721A4\u003c\/li\u003e\n\u003cli\u003e855721T8\u003c\/li\u003e\n\u003cli\u003e721851\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra 18-99225 stator fit?\u003c\/strong\u003e It fits Mercury\/Mariner 2-stroke outboards with four-magnet flywheels in the 6, 8, 9.9, 10, 15, 20 and 25 HP range, built in the 1997-2005 span.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color is the 18-99225 stator?\u003c\/strong\u003e Red. The red housing is a visual identifier used to distinguish this stator variant from other Mercury\/Mariner stator styles.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part numbers does this stator replace?\u003c\/strong\u003e The Sierra 18-99225 replaces Mercury\/Mariner OEM numbers 855721A4, 855721T8, and 721851.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-99225 stator weigh?\u003c\/strong\u003e This stator weighs 0.7 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes this stator work on 4-stroke Mercury outboards?\u003c\/strong\u003e No. The 18-99225 is built for 2-stroke Mercury\/Mariner outboards with four-magnet flywheels, not 4-stroke engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow do I know if my flywheel is compatible?\u003c\/strong\u003e The 18-99225 is designed for four-magnet flywheel setups, so confirming your flywheel has four magnets alongside your engine's horsepower rating is the key fitment check.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-99225 a direct OEM replacement?\u003c\/strong\u003e Yes, it is a direct-fit replacement stator that installs in place of the original Mercury\/Mariner unit without modification.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the symptoms of a failing stator that this part fixes?\u003c\/strong\u003e A failing stator on these Mercury\/Mariner outboards typically causes hard starting, weak or intermittent spark, or the engine stalling and refusing to restart; the 18-99225 restores the ignition charging function.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the stator come with mounting hardware?\u003c\/strong\u003e The listing covers the Sierra 18-99225 stator itself; check your engine's original hardware for reuse during installation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat horsepower range covers the 18-99225?\u003c\/strong\u003e It covers Mercury\/Mariner 6, 8, 9.9, 10, 15, 20 and 25 HP outboards equipped with four-magnet flywheels.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988439183579,"sku":"SIE-18-99225","price":186.82,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/CDI-174-5721_lg__93254.1558112846.500.750.jpg?v=1785188524","url":"https:\/\/www.goodvibesmarina.com\/products\/sierra-18-99225-marine-stator-for-mercury-mariner-6-25-hp-2-stroke-outboards-1997-2005-replaces-oem-855721a-4","provider":"Good Vibes Marina","version":"1.0","type":"link"}