{"product_id":"sierra-marine-water-pump-kit-sie-18-3390","title":"Sierra Marine Water Pump Kit 18-3390 – Johnson \/ Evinrude 85-300HP V4 V6 Cooling System Rebuild","description":"\u003cp data-start=\"257\" data-end=\"553\"\u003eThe \u003cstrong data-start=\"261\" data-end=\"294\"\u003eSierra 18-3390 Water Pump Kit\u003c\/strong\u003e is a complete internal rebuild kit designed for Johnson and Evinrude high-horsepower outboards equipped with large gearcases. This kit restores proper water flow through the engine, preventing overheating and ensuring reliable cooling performance under load.\u003c\/p\u003e\n\u003cp data-start=\"555\" data-end=\"781\"\u003eThis is a \u003cstrong data-start=\"565\" data-end=\"590\"\u003e“without housing” kit\u003c\/strong\u003e, meaning it includes all critical internal components while reusing the existing pump housing. Ideal for routine maintenance or correcting weak water pressure, overheating, or impeller wear.\u003c\/p\u003e\n\u003cp data-start=\"783\" data-end=\"943\"\u003eManufactured to meet or exceed OEM specifications, Sierra components provide dependable fit, durability, and long service life in demanding marine environments.\u003c\/p\u003e\n\u003chr data-start=\"945\" data-end=\"948\"\u003e\n\u003ch2 data-start=\"950\" data-end=\"969\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"953\" data-end=\"969\"\u003eKey Features\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul data-start=\"970\" data-end=\"1314\"\u003e\n\u003cli data-start=\"970\" data-end=\"1037\"\u003eComplete internal water pump rebuild kit (housing not included)\u003c\/li\u003e\n\u003cli data-start=\"1038\" data-end=\"1106\"\u003eIncludes impeller, wear plate, cup, gaskets, seals, and hardware\u003c\/li\u003e\n\u003cli data-start=\"1107\" data-end=\"1174\"\u003eDesigned for high-horsepower OMC outboards with large gearcases\u003c\/li\u003e\n\u003cli data-start=\"1175\" data-end=\"1233\"\u003eRestores cooling system performance and water pressure\u003c\/li\u003e\n\u003cli data-start=\"1234\" data-end=\"1277\"\u003eDirect OEM replacement fit and function\u003c\/li\u003e\n\u003cli data-start=\"1278\" data-end=\"1314\"\u003eSierra limited lifetime warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1316\" data-end=\"1319\"\u003e\n\u003ch2 data-start=\"1321\" data-end=\"1348\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"1324\" data-end=\"1348\"\u003eEngine Compatibility\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3 data-start=\"1350\" data-end=\"1424\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"1354\" data-end=\"1424\"\u003eJohnson \/ Evinrude \/ OMC Outboards (Large Gearcase – 1979 \u0026amp; Newer)\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul data-start=\"1425\" data-end=\"1565\"\u003e\n\u003cli data-start=\"1425\" data-end=\"1434\"\u003e85 HP\u003c\/li\u003e\n\u003cli data-start=\"1435\" data-end=\"1444\"\u003e90 HP\u003c\/li\u003e\n\u003cli data-start=\"1445\" data-end=\"1455\"\u003e100 HP\u003c\/li\u003e\n\u003cli data-start=\"1456\" data-end=\"1466\"\u003e115 HP\u003c\/li\u003e\n\u003cli data-start=\"1467\" data-end=\"1477\"\u003e135 HP\u003c\/li\u003e\n\u003cli data-start=\"1478\" data-end=\"1488\"\u003e140 HP\u003c\/li\u003e\n\u003cli data-start=\"1489\" data-end=\"1499\"\u003e150 HP\u003c\/li\u003e\n\u003cli data-start=\"1500\" data-end=\"1510\"\u003e175 HP\u003c\/li\u003e\n\u003cli data-start=\"1511\" data-end=\"1521\"\u003e200 HP\u003c\/li\u003e\n\u003cli data-start=\"1522\" data-end=\"1532\"\u003e225 HP\u003c\/li\u003e\n\u003cli data-start=\"1533\" data-end=\"1543\"\u003e235 HP\u003c\/li\u003e\n\u003cli data-start=\"1544\" data-end=\"1554\"\u003e250 HP\u003c\/li\u003e\n\u003cli data-start=\"1555\" data-end=\"1565\"\u003e300 HP\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1567\" data-end=\"1640\"\u003e➡️ Fits \u003cstrong data-start=\"1575\" data-end=\"1617\"\u003eV4 and V6 crossflow and looper engines\u003c\/strong\u003e using large gearcases.\u003c\/p\u003e\n\u003chr data-start=\"1642\" data-end=\"1645\"\u003e\n\u003ch2 data-start=\"1647\" data-end=\"1684\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"1650\" data-end=\"1682\"\u003eSerial Number Fitment Notice\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp data-start=\"1685\" data-end=\"1738\"\u003eThis kit is for \u003cstrong data-start=\"1701\" data-end=\"1737\"\u003elarge gearcase applications only\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-start=\"1740\" data-end=\"1758\"\u003e⚠️ Always confirm:\u003c\/p\u003e\n\u003cul data-start=\"1759\" data-end=\"1845\"\u003e\n\u003cli data-start=\"1759\" data-end=\"1793\"\u003eGearcase size (large vs small)\u003c\/li\u003e\n\u003cli data-start=\"1794\" data-end=\"1819\"\u003eEngine model and year\u003c\/li\u003e\n\u003cli data-start=\"1820\" data-end=\"1845\"\u003eOEM part number match\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1847\" data-end=\"1914\"\u003eSerial number verification is strongly recommended to avoid misfit.\u003c\/p\u003e\n\u003chr data-start=\"1916\" data-end=\"1919\"\u003e\n\u003ch2 data-start=\"1921\" data-end=\"1960\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"1924\" data-end=\"1960\"\u003eWhen This Part Needs Replacement\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp data-start=\"1961\" data-end=\"2002\"\u003eReplace the water pump kit if you notice:\u003c\/p\u003e\n\u003cul data-start=\"2003\" data-end=\"2177\"\u003e\n\u003cli data-start=\"2003\" data-end=\"2033\"\u003eWeak or no telltale stream\u003c\/li\u003e\n\u003cli data-start=\"2034\" data-end=\"2056\"\u003eEngine overheating\u003c\/li\u003e\n\u003cli data-start=\"2057\" data-end=\"2084\"\u003eReduced cooling at idle\u003c\/li\u003e\n\u003cli data-start=\"2085\" data-end=\"2130\"\u003eImpeller cracking, swelling, or hardening\u003c\/li\u003e\n\u003cli data-start=\"2131\" data-end=\"2177\"\u003eLong storage periods (dry impeller damage)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"2179\" data-end=\"2240\"\u003eRecommended service interval: \u003cstrong data-start=\"2209\" data-end=\"2240\"\u003eevery 100 hours or annually\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr data-start=\"2242\" data-end=\"2245\"\u003e\n\u003ch2 data-start=\"2247\" data-end=\"2272\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"2250\" data-end=\"2272\"\u003eInstallation Notes\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul data-start=\"2273\" data-end=\"2531\"\u003e\n\u003cli data-start=\"2273\" data-end=\"2334\"\u003eHousing is \u003cstrong data-start=\"2286\" data-end=\"2302\"\u003enot included\u003c\/strong\u003e — inspect and replace if worn\u003c\/li\u003e\n\u003cli data-start=\"2335\" data-end=\"2387\"\u003eInstall impeller with correct rotation direction\u003c\/li\u003e\n\u003cli data-start=\"2388\" data-end=\"2429\"\u003eUse marine grease during installation\u003c\/li\u003e\n\u003cli data-start=\"2430\" data-end=\"2481\"\u003eReplace seals and grommets to prevent air leaks\u003c\/li\u003e\n\u003cli data-start=\"2482\" data-end=\"2531\"\u003eTorque fasteners evenly to OEM specifications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"2533\" data-end=\"2536\"\u003e\n\u003ch2 data-start=\"2538\" data-end=\"2580\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"2541\" data-end=\"2580\"\u003eAlternate \/ Superseded Part Numbers\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3 data-start=\"2582\" data-end=\"2610\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"2586\" data-end=\"2610\"\u003eOEM Cross References\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul data-start=\"2611\" data-end=\"2710\"\u003e\n\u003cli data-start=\"2611\" data-end=\"2710\"\u003eJohnson \/ Evinrude \/ OMC:\n\u003cul data-start=\"2643\" data-end=\"2710\"\u003e\n\u003cli data-start=\"2643\" data-end=\"2658\"\u003e\u003cstrong data-start=\"2645\" data-end=\"2656\"\u003e0395060\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli data-start=\"2661\" data-end=\"2676\"\u003e\u003cstrong data-start=\"2663\" data-end=\"2674\"\u003e0434421\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli data-start=\"2679\" data-end=\"2694\"\u003e\u003cstrong data-start=\"2681\" data-end=\"2692\"\u003e0435447\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli data-start=\"2697\" data-end=\"2710\"\u003e\u003cstrong data-start=\"2699\" data-end=\"2710\"\u003e5001594\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"2712\" data-end=\"2715\"\u003e\n\u003ch3 data-start=\"2717\" data-end=\"2753\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"2721\" data-end=\"2753\"\u003eAftermarket Cross References\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul data-start=\"2754\" data-end=\"2795\"\u003e\n\u003cli data-start=\"2754\" data-end=\"2778\"\u003eMallory: \u003cstrong data-start=\"2765\" data-end=\"2776\"\u003e9-48210\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2779\" data-end=\"2795\"\u003eGLM: \u003cstrong data-start=\"2786\" data-end=\"2795\"\u003e12104\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"2797\" data-end=\"2800\"\u003e\n\u003ch2 data-start=\"2802\" data-end=\"2819\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"2805\" data-end=\"2817\"\u003eShipping\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp data-start=\"2820\" data-end=\"2885\"\u003eShipping: Ships same or next day for fast Canada wide shipping. ⚓\u003c\/p\u003e\n\u003chr data-start=\"2887\" data-end=\"2890\"\u003e\n\u003ch3 data-start=\"2892\" data-end=\"2919\"\u003e💡 Parts Desk Insight\u003c\/h3\u003e\n\u003cp data-start=\"2920\" data-end=\"3022\"\u003eThis is a \u003cstrong data-start=\"2930\" data-end=\"2950\"\u003ebig gearcase kit\u003c\/strong\u003e — one of the most common mistakes is ordering a small gearcase version.\u003c\/p\u003e","brand":"WEST","offers":[{"title":"Default Title","offer_id":43564241223716,"sku":"SIE-18-3390","price":119.24,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5799\/7604\/files\/2f4d3cbe-8a38-47bd-9fd0-50d64cbaaef0.png?v=1774160311","url":"https:\/\/marisolmarine.com\/products\/sierra-marine-water-pump-kit-sie-18-3390","provider":"Marisol Marine Company","version":"1.0","type":"link"}