{"product_id":"sierra-marine-fuel-pump-sie-18-7278","title":"Sierra Marine Fuel Pump 18-7278 – Mercury \/ Mariner 4HP-15HP 2-Stroke Fuel Delivery Pump","description":"\u003cp data-start=\"232\" data-end=\"529\"\u003eThe \u003cstrong data-start=\"236\" data-end=\"264\"\u003eSierra 18-7278 Fuel Pump\u003c\/strong\u003e is a diaphragm-style fuel pump designed to deliver consistent fuel flow in small horsepower Mercury and Mariner 2-stroke outboards. This pump ensures proper fuel transfer from the tank to the carburetor, supporting smooth engine operation and reliable performance.\u003c\/p\u003e\n\u003cp data-start=\"531\" data-end=\"722\"\u003eEngineered to meet or exceed OEM specifications, this pump is a direct replacement for worn or failing units and is ideal for restoring proper fuel pressure in portable outboard applications.\u003c\/p\u003e\n\u003cp data-start=\"724\" data-end=\"811\"\u003ePerfect for resolving hard starting, fuel starvation, or inconsistent idle performance.\u003c\/p\u003e\n\u003chr data-start=\"813\" data-end=\"816\"\u003e\n\u003ch2 data-start=\"818\" data-end=\"837\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"821\" data-end=\"837\"\u003eKey Features\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul data-start=\"838\" data-end=\"1097\"\u003e\n\u003cli data-start=\"838\" data-end=\"876\"\u003eDiaphragm-style fuel pump assembly\u003c\/li\u003e\n\u003cli data-start=\"877\" data-end=\"920\"\u003eDesigned for small horsepower outboards\u003c\/li\u003e\n\u003cli data-start=\"921\" data-end=\"971\"\u003eProvides consistent fuel delivery and pressure\u003c\/li\u003e\n\u003cli data-start=\"972\" data-end=\"1015\"\u003eDirect OEM replacement fit and function\u003c\/li\u003e\n\u003cli data-start=\"1016\" data-end=\"1060\"\u003eMarine-grade construction for durability\u003c\/li\u003e\n\u003cli data-start=\"1061\" data-end=\"1097\"\u003eSierra limited lifetime warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1099\" data-end=\"1102\"\u003e\n\u003ch2 data-start=\"1104\" data-end=\"1131\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"1107\" data-end=\"1131\"\u003eEngine Compatibility\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3 data-start=\"1133\" data-end=\"1179\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"1137\" data-end=\"1179\"\u003eMercury \/ Mariner Outboards (2-Stroke)\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul data-start=\"1180\" data-end=\"1247\"\u003e\n\u003cli data-start=\"1180\" data-end=\"1188\"\u003e4 HP\u003c\/li\u003e\n\u003cli data-start=\"1189\" data-end=\"1197\"\u003e5 HP\u003c\/li\u003e\n\u003cli data-start=\"1198\" data-end=\"1206\"\u003e6 HP\u003c\/li\u003e\n\u003cli data-start=\"1207\" data-end=\"1217\"\u003e7.5 HP\u003c\/li\u003e\n\u003cli data-start=\"1218\" data-end=\"1226\"\u003e8 HP\u003c\/li\u003e\n\u003cli data-start=\"1227\" data-end=\"1237\"\u003e9.9 HP\u003c\/li\u003e\n\u003cli data-start=\"1238\" data-end=\"1247\"\u003e15 HP\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1249\" data-end=\"1318\"\u003e➡️ Fits a wide range of \u003cstrong data-start=\"1273\" data-end=\"1318\"\u003eportable Mercury\/Mariner 2-stroke engines\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr data-start=\"1320\" data-end=\"1323\"\u003e\n\u003ch2 data-start=\"1325\" data-end=\"1362\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"1328\" data-end=\"1360\"\u003eSerial Number Fitment Notice\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp data-start=\"1363\" data-end=\"1439\"\u003eFitment varies depending on carburetor configuration and fuel system design.\u003c\/p\u003e\n\u003cp data-start=\"1441\" data-end=\"1459\"\u003e⚠️ Always confirm:\u003c\/p\u003e\n\u003cul data-start=\"1460\" data-end=\"1554\"\u003e\n\u003cli data-start=\"1460\" data-end=\"1484\"\u003eEngine serial number\u003c\/li\u003e\n\u003cli data-start=\"1485\" data-end=\"1511\"\u003eMounting configuration\u003c\/li\u003e\n\u003cli data-start=\"1512\" data-end=\"1554\"\u003eFuel line routing and pulse port setup\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1556\" data-end=\"1627\"\u003eSome models may use different pump styles depending on production year.\u003c\/p\u003e\n\u003chr data-start=\"1629\" data-end=\"1632\"\u003e\n\u003ch2 data-start=\"1634\" data-end=\"1673\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"1637\" data-end=\"1673\"\u003eWhen This Part Needs Replacement\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp data-start=\"1674\" data-end=\"1710\"\u003eReplace the fuel pump if you notice:\u003c\/p\u003e\n\u003cul data-start=\"1711\" data-end=\"1874\"\u003e\n\u003cli data-start=\"1711\" data-end=\"1749\"\u003eHard starting or extended cranking\u003c\/li\u003e\n\u003cli data-start=\"1750\" data-end=\"1782\"\u003eEngine bogging or hesitation\u003c\/li\u003e\n\u003cli data-start=\"1783\" data-end=\"1816\"\u003eFuel starvation at higher RPM\u003c\/li\u003e\n\u003cli data-start=\"1817\" data-end=\"1838\"\u003ePoor idle quality\u003c\/li\u003e\n\u003cli data-start=\"1839\" data-end=\"1874\"\u003eFuel leaks or diaphragm failure\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1876\" data-end=\"1879\"\u003e\n\u003ch2 data-start=\"1881\" data-end=\"1906\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"1884\" data-end=\"1906\"\u003eInstallation Notes\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul data-start=\"1907\" data-end=\"2154\"\u003e\n\u003cli data-start=\"1907\" data-end=\"1966\"\u003eEnsure pulse line is properly connected and not cracked\u003c\/li\u003e\n\u003cli data-start=\"1967\" data-end=\"2025\"\u003eInspect fuel lines and primer bulb during installation\u003c\/li\u003e\n\u003cli data-start=\"2026\" data-end=\"2065\"\u003eReplace mounting gasket if required\u003c\/li\u003e\n\u003cli data-start=\"2066\" data-end=\"2115\"\u003eCheck carburetor condition after installation\u003c\/li\u003e\n\u003cli data-start=\"2116\" data-end=\"2154\"\u003eVerify no air leaks in fuel system\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"2156\" data-end=\"2159\"\u003e\n\u003ch2 data-start=\"2161\" data-end=\"2203\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"2164\" data-end=\"2203\"\u003eAlternate \/ Superseded Part Numbers\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3 data-start=\"2205\" data-end=\"2233\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"2209\" data-end=\"2233\"\u003eOEM Cross References\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul data-start=\"2234\" data-end=\"2310\"\u003e\n\u003cli data-start=\"2234\" data-end=\"2310\"\u003eMercury \/ Mariner:\n\u003cul data-start=\"2259\" data-end=\"2310\"\u003e\n\u003cli data-start=\"2259\" data-end=\"2274\"\u003e\u003cstrong data-start=\"2261\" data-end=\"2272\"\u003e803529T\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli data-start=\"2277\" data-end=\"2293\"\u003e\u003cstrong data-start=\"2279\" data-end=\"2291\"\u003e803529T1\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli data-start=\"2296\" data-end=\"2310\"\u003e\u003cstrong data-start=\"2298\" data-end=\"2310\"\u003e803529A1\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"2312\" data-end=\"2315\"\u003e\n\u003ch3 data-start=\"2317\" data-end=\"2353\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"2321\" data-end=\"2353\"\u003eAftermarket Cross References\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul data-start=\"2354\" data-end=\"2395\"\u003e\n\u003cli data-start=\"2354\" data-end=\"2378\"\u003eMallory: \u003cstrong data-start=\"2365\" data-end=\"2376\"\u003e9-35350\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2379\" data-end=\"2395\"\u003eGLM: \u003cstrong data-start=\"2386\" data-end=\"2395\"\u003e40520\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"2397\" data-end=\"2400\"\u003e\n\u003ch2 data-start=\"2402\" data-end=\"2419\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"2405\" data-end=\"2417\"\u003eShipping\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp data-start=\"2420\" data-end=\"2485\"\u003eShipping: Ships same or next day for fast Canada wide shipping. ⚓\u003c\/p\u003e","brand":"WEST","offers":[{"title":"Default Title","offer_id":43564265537572,"sku":"SIE-18-7278","price":480.71,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5799\/7604\/files\/2bf809c7-29de-4d89-beaf-475639af5808.png?v=1774150785","url":"https:\/\/marisolmarine.com\/products\/sierra-marine-fuel-pump-sie-18-7278","provider":"Marisol Marine Company","version":"1.0","type":"link"}