{"product_id":"sierra-impeller-kit-sie-18-3016-1","title":"Sierra Impeller Kit 18-3016-1 – Mercury \/ Mariner Outboard Water Pump Service Kit","description":"\u003cp data-start=\"212\" data-end=\"491\"\u003eThe \u003cstrong data-start=\"216\" data-end=\"249\"\u003eSierra 18-3016-1 Impeller Kit\u003c\/strong\u003e is a complete raw water pump service kit designed for Mercury and Mariner outboards. This kit includes the impeller along with essential sealing components to restore proper cooling water circulation and protect your engine from overheating.\u003c\/p\u003e\n\u003cp data-start=\"493\" data-end=\"808\"\u003eThe impeller is the heart of the cooling system, drawing water through the lower unit and delivering it to the engine. Over time, the rubber vanes can wear, crack, or lose flexibility, reducing cooling efficiency. Replacing the impeller and seals ensures reliable performance and helps prevent costly engine damage.\u003c\/p\u003e\n\u003cp data-start=\"810\" data-end=\"946\"\u003eManufactured to meet or exceed OEM specifications, this kit delivers dependable operation in both freshwater and saltwater environments.\u003c\/p\u003e\n\u003chr data-start=\"948\" data-end=\"951\"\u003e\n\u003ch2 data-start=\"953\" data-end=\"972\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"956\" data-end=\"972\"\u003eKey Features\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul data-start=\"973\" data-end=\"1256\"\u003e\n\u003cli data-start=\"973\" data-end=\"1017\"\u003eComplete water pump impeller service kit\u003c\/li\u003e\n\u003cli data-start=\"1018\" data-end=\"1083\"\u003eIncludes impeller, gaskets, and seals (varies by application)\u003c\/li\u003e\n\u003cli data-start=\"1084\" data-end=\"1122\"\u003eRestores proper cooling water flow\u003c\/li\u003e\n\u003cli data-start=\"1123\" data-end=\"1169\"\u003eDirect OEM replacement fit and performance\u003c\/li\u003e\n\u003cli data-start=\"1170\" data-end=\"1219\"\u003eDurable flexible rubber impeller construction\u003c\/li\u003e\n\u003cli data-start=\"1220\" data-end=\"1256\"\u003eSierra limited lifetime warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1258\" data-end=\"1261\"\u003e\n\u003ch2 data-start=\"1263\" data-end=\"1290\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"1266\" data-end=\"1290\"\u003eEngine Compatibility\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3 data-start=\"1292\" data-end=\"1327\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"1296\" data-end=\"1327\"\u003eMercury \/ Mariner Outboards\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1328\" data-end=\"1345\"\u003eCommonly used on:\u003c\/p\u003e\n\u003cul data-start=\"1346\" data-end=\"1388\"\u003e\n\u003cli data-start=\"1346\" data-end=\"1355\"\u003e90 HP\u003c\/li\u003e\n\u003cli data-start=\"1356\" data-end=\"1366\"\u003e115 HP\u003c\/li\u003e\n\u003cli data-start=\"1367\" data-end=\"1377\"\u003e135 HP\u003c\/li\u003e\n\u003cli data-start=\"1378\" data-end=\"1388\"\u003e150 HP\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1390\" data-end=\"1471\"\u003e➡️ Fits select Mercury\/Mariner V6 outboards using compatible water pump housings.\u003c\/p\u003e\n\u003chr data-start=\"1473\" data-end=\"1476\"\u003e\n\u003ch2 data-start=\"1478\" data-end=\"1515\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"1481\" data-end=\"1513\"\u003eSerial Number Fitment Notice\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp data-start=\"1516\" data-end=\"1535\"\u003eFitment depends on:\u003c\/p\u003e\n\u003cul data-start=\"1536\" data-end=\"1621\"\u003e\n\u003cli data-start=\"1536\" data-end=\"1561\"\u003eEngine model and year\u003c\/li\u003e\n\u003cli data-start=\"1562\" data-end=\"1592\"\u003eLower unit \/ gearcase type\u003c\/li\u003e\n\u003cli data-start=\"1593\" data-end=\"1621\"\u003eWater pump configuration\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1623\" data-end=\"1647\"\u003e⚠️ Always confirm using:\u003c\/p\u003e\n\u003cul data-start=\"1648\" data-end=\"1714\"\u003e\n\u003cli data-start=\"1648\" data-end=\"1672\"\u003eEngine serial number\u003c\/li\u003e\n\u003cli data-start=\"1673\" data-end=\"1714\"\u003eOEM part number match (\u003cstrong data-start=\"1698\" data-end=\"1711\"\u003e18-3016-1\u003c\/strong\u003e)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1716\" data-end=\"1719\"\u003e\n\u003ch2 data-start=\"1721\" data-end=\"1760\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"1724\" data-end=\"1760\"\u003eWhen This Part Needs Replacement\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp data-start=\"1761\" data-end=\"1800\"\u003eReplace the impeller kit if you notice:\u003c\/p\u003e\n\u003cul data-start=\"1801\" data-end=\"1962\"\u003e\n\u003cli data-start=\"1801\" data-end=\"1831\"\u003eWeak or no telltale stream\u003c\/li\u003e\n\u003cli data-start=\"1832\" data-end=\"1854\"\u003eEngine overheating\u003c\/li\u003e\n\u003cli data-start=\"1855\" data-end=\"1886\"\u003eReduced cooling performance\u003c\/li\u003e\n\u003cli data-start=\"1887\" data-end=\"1935\"\u003eCracked, hardened, or missing impeller vanes\u003c\/li\u003e\n\u003cli data-start=\"1936\" data-end=\"1962\"\u003eAfter seasonal storage\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1964\" data-end=\"2025\"\u003eRecommended service interval: \u003cstrong data-start=\"1994\" data-end=\"2025\"\u003eevery 100 hours or annually\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr data-start=\"2027\" data-end=\"2030\"\u003e\n\u003ch2 data-start=\"2032\" data-end=\"2057\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"2035\" data-end=\"2057\"\u003eInstallation Notes\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul data-start=\"2058\" data-end=\"2272\"\u003e\n\u003cli data-start=\"2058\" data-end=\"2105\"\u003eInstall impeller with correct vane rotation\u003c\/li\u003e\n\u003cli data-start=\"2106\" data-end=\"2148\"\u003eLubricate impeller during installation\u003c\/li\u003e\n\u003cli data-start=\"2149\" data-end=\"2188\"\u003eInspect wear plate and pump housing\u003c\/li\u003e\n\u003cli data-start=\"2189\" data-end=\"2231\"\u003eReplace all included seals and gaskets\u003c\/li\u003e\n\u003cli data-start=\"2232\" data-end=\"2272\"\u003eEnsure proper key alignment on shaft\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"2274\" data-end=\"2277\"\u003e\n\u003ch2 data-start=\"2279\" data-end=\"2321\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"2282\" data-end=\"2321\"\u003eAlternate \/ Superseded Part Numbers\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3 data-start=\"2323\" data-end=\"2351\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"2327\" data-end=\"2351\"\u003eOEM Cross References\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul data-start=\"2352\" data-end=\"2406\"\u003e\n\u003cli data-start=\"2352\" data-end=\"2406\"\u003eMercury: \u003cstrong data-start=\"2363\" data-end=\"2377\"\u003e46-96148A8\u003c\/strong\u003e, \u003cstrong data-start=\"2379\" data-end=\"2393\"\u003e46-96148A1\u003c\/strong\u003e, \u003cstrong data-start=\"2395\" data-end=\"2406\"\u003e96148A8\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"2408\" data-end=\"2411\"\u003e\n\u003ch3 data-start=\"2413\" data-end=\"2449\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"2417\" data-end=\"2449\"\u003eAftermarket Cross References\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul data-start=\"2450\" data-end=\"2517\"\u003e\n\u003cli data-start=\"2450\" data-end=\"2475\"\u003eSierra: \u003cstrong data-start=\"2460\" data-end=\"2473\"\u003e18-3016-1\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2476\" data-end=\"2500\"\u003eMallory: \u003cstrong data-start=\"2487\" data-end=\"2498\"\u003e9-45607\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2501\" data-end=\"2517\"\u003eGLM: \u003cstrong data-start=\"2508\" data-end=\"2517\"\u003e12031\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"2519\" data-end=\"2522\"\u003e\n\u003ch2 data-start=\"2524\" data-end=\"2541\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"2527\" data-end=\"2539\"\u003eShipping\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp data-start=\"2542\" data-end=\"2607\"\u003eShipping: Ships same or next day for fast Canada wide shipping. ⚓\u003c\/p\u003e\n\u003chr data-start=\"2609\" data-end=\"2612\"\u003e\n\u003ch3 data-start=\"2614\" data-end=\"2641\"\u003e💡 Parts Desk Insight\u003c\/h3\u003e\n\u003cp data-start=\"2642\" data-end=\"2793\"\u003eOn V6 outboards, the impeller does most of the work at higher RPM. A worn impeller might still cool fine at idle but can struggle when you're on plane.\u003c\/p\u003e\n\u003cp data-start=\"2795\" data-end=\"2921\" data-is-last-node=\"\" data-is-only-node=\"\"\u003eReplacing the full kit ensures proper sealing and consistent water flow, helping avoid overheating when you're running hard 👍\u003c\/p\u003e","brand":"WEST","offers":[{"title":"Default Title","offer_id":43564240666660,"sku":"SIE-18-3016-1","price":57.75,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5799\/7604\/files\/a44ed772-d241-45bc-9f02-ced01a79039f.png?v=1774216624","url":"https:\/\/marisolmarine.com\/products\/sierra-impeller-kit-sie-18-3016-1","provider":"Marisol Marine Company","version":"1.0","type":"link"}