{"product_id":"sierra-18-3098-water-pump-impeller-for-mercury-mariner-3-3-6-hp-outboards-6-fin-neoprene-replaces-oem-47-16154-3","title":"Sierra 18-3098 Neoprene Impeller with 6 Fins, Replaces Mercury Marine 47-16154-3, Fits Mercury\/Mariner 3.3-6hp Outboards","description":"\u003cp\u003eThe Sierra 18-3098 is a neoprene water pump impeller with 6 fins, built as a direct replacement for the water pump impeller in select Mercury\/Mariner outboard motors. The impeller is the wear component inside the outboard's water pump housing that drives raw water through the cooling system to keep the powerhead running at a safe operating temperature; a worn, cracked, or missing fin on the impeller is one of the most common causes of outboard overheating. This impeller is designed as a like-for-like replacement, matching the original Mercury Marine part in fin count and fit so the water pump housing and wear plate seal correctly once it is installed.\u003c\/p\u003e\u003cp\u003eSierra manufactures this impeller for Mercury\/Mariner shiftable 3.3hp outboards from 1993 and up, Mercury\/Mariner 4\/5hp 2-cycle outboards from 1987 and up, and Mercury\/Mariner 4\/5\/6hp 4-Stroke outboards from 1999 and up. Because water pump impellers are wear items, Sierra recommends replacing this part on the manufacturer's recommended service interval, or any time the outboard shows signs of reduced water flow or overheating, to protect the engine from cooling system failure.\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 18-3098\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Neoprene\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFin Count:\u003c\/strong\u003e 6 Fins\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e White\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.04 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit Count:\u003c\/strong\u003e 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282101176\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross Reference:\u003c\/strong\u003e MERCURY MARINE 47-16154-3\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMercury\/Mariner shiftable 3.3hp, 1993 \u0026amp; Up\u003c\/li\u003e\n\u003cli\u003eMercury\/Mariner 4\/5hp 2-cycle, 1987 \u0026amp; Up\u003c\/li\u003e\n\u003cli\u003eMercury\/Mariner 4\/5\/6hp 4-Stroke, 1999 \u0026amp; Up\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eMERCURY MARINE 47-16154-3\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat outboard motors does the Sierra 18-3098 impeller fit?\u003c\/strong\u003e The Sierra 18-3098 fits Mercury\/Mariner shiftable 3.3hp outboards from 1993 and up, Mercury\/Mariner 4\/5hp 2-cycle outboards from 1987 and up, and Mercury\/Mariner 4\/5\/6hp 4-Stroke outboards from 1999 and up.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part number does the Sierra 18-3098 replace?\u003c\/strong\u003e It replaces Mercury Marine part number 47-16154-3, so it is a direct equivalent for that original impeller.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the Sierra 18-3098 impeller made from?\u003c\/strong\u003e It is made from neoprene, the standard rubber compound used for outboard water pump impellers because it flexes against the pump housing to move cooling water.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many fins does the Sierra 18-3098 impeller have?\u003c\/strong\u003e This impeller has 6 fins, matching the fin count of the original Mercury\/Mariner impeller it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-3098 impeller weigh?\u003c\/strong\u003e The Sierra 18-3098 weighs 0.04 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow do I know if my outboard's impeller needs to be replaced?\u003c\/strong\u003e Reduced water flow from the tell-tale (pee hole), the engine running hotter than normal, or an overheat alarm are common signs that the water pump impeller, such as the Sierra 18-3098, has worn or cracked fins and needs replacement.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-3098 a genuine Mercury part or aftermarket?\u003c\/strong\u003e The Sierra 18-3098 is a Sierra-branded aftermarket impeller manufactured as a direct replacement for Mercury Marine part 47-16154-3.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color is the Sierra 18-3098 impeller?\u003c\/strong\u003e The Sierra 18-3098 impeller is white.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the Sierra 18-3098 come as a complete water pump kit?\u003c\/strong\u003e No, the Sierra 18-3098 is the impeller itself, sold as a single unit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill the Sierra 18-3098 fit a 2-cycle and a 4-stroke Mercury outboard?\u003c\/strong\u003e Yes, Sierra lists this same impeller for Mercury\/Mariner 4\/5hp 2-cycle outboards from 1987 and up as well as Mercury\/Mariner 4\/5\/6hp 4-Stroke outboards from 1999 and up.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-3098 covered by a warranty?\u003c\/strong\u003e Yes, the Sierra 18-3098 is covered under Sierra's manufacturer warranty against defects.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988140175579,"sku":"SIE-18-3098","price":18.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/18-3098__08050.1737865738.500.750.jpg?v=1785187988","url":"https:\/\/www.goodvibesmarina.com\/products\/sierra-18-3098-water-pump-impeller-for-mercury-mariner-3-3-6-hp-outboards-6-fin-neoprene-replaces-oem-47-16154-3","provider":"Good Vibes Marina","version":"1.0","type":"link"}