{"product_id":"fuel-pump-fits-johnson-evinrude-25-140-hp-replaces-438559-433390-398385","title":"Fuel Pump – Fits Johnson\/Evinrude 25–140 HP (Replaces 438559, 433390, 398385)","description":"\u003cstyle\u003e\n\/* Outer container allows horizontal scrolling (with iOS momentum) *\/\n.ss-table-wrap { overflow-x:auto; -webkit-overflow-scrolling:touch; }\n\/* Base table styles *\/\ntable.ss-table { width:100%; border-collapse:collapse; min-width:640px; }\ntable.ss-table th, table.ss-table td { padding:10px 12px; border:1px solid #e5e7eb; text-align:left; vertical-align:top; }\n\/* Key: prevent wrapping, word breaks, and vertical text in headers *\/\ntable.ss-table th { white-space:nowrap; word-break:normal; letter-spacing:normal; font-weight:600; background:#f8fafc; }\n\/* Small screen optimization *\/\n@media (max-width:480px){\n  table.ss-table th, table.ss-table td { padding:8px 10px; font-size:14px; }\n}\n\u003c\/style\u003e\n\u003csection\u003e\n  \u003ch2\u003eProduct Details\u003c\/h2\u003e\n  \u003cp\u003eThis \u003cstrong\u003eFuel Pump – Fits Johnson\/Evinrude 25–140 HP (Replaces 438559)\u003c\/strong\u003e is an aftermarket replacement designed for a wide range of Johnson and Evinrude outboard motors from 25 to 140 HP. It fits both Crossflow and Looper engines manufactured between 1976 and 2001, providing reliable fuel delivery for consistent engine performance.\u003c\/p\u003e\n  \u003cp\u003eThis part is a direct interchange for Johnson\/Evinrude part numbers 438559, 433390, 398385, 395712, 385784, 765591, and others listed in the matrix below. It serves as a comprehensive replacement for multiple superseded parts.\u003c\/p\u003e\n  \u003cul\u003e\n    \u003cli\u003eInstallation Type: External pulse style pump.\u003c\/li\u003e\n    \u003cli\u003eOperating Mechanism: Uses engine pulse for operation via a mechanical diaphragm.\u003c\/li\u003e\n    \u003cli\u003eIncluded Components: Kit includes the fuel pump, gasket, filter, and retaining clip.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n  \u003cp\u003eUse this matrix to confirm equivalent references across OEM and aftermarket.\u003c\/p\u003e\n  \u003cdiv class=\"ss-table-wrap\"\u003e\n  \u003ctable class=\"ss-table\" aria-label=\"Part Number Cross-Reference\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth\u003eBrand\u003c\/th\u003e\n        \u003cth\u003ePart Number\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003e438559\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003e0438559\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003e433390\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003e398385\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003e395712\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003e385784\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003e398678\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003e395718\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003e395107\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003e394716\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003e393648\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003e388555\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003e383765\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003e0383765\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003e382872\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003e382843\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003e381600\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003e765591\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003e438557\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n  \u003c\/div\u003e\n\n  \u003ch2\u003eEngine \u0026amp; Model Compatibility\u003c\/h2\u003e\n  \u003cp\u003eConfirm your engine model\/year in the table below.\u003c\/p\u003e\n  \u003cp\u003eFor Johnson\/Evinrude V6 Crossflow engines, please note that two fuel pumps are required for proper operation.\u003c\/p\u003e\n  \u003cdiv class=\"ss-table-wrap\"\u003e\n  \u003ctable class=\"ss-table\" aria-label=\"Engine Model Compatibility for Johnson\/Evinrude\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth\u003eBrand\u003c\/th\u003e\n        \u003cth\u003eModel\u003c\/th\u003e\n        \u003cth\u003eRated HP\u003c\/th\u003e\n        \u003cth\u003eStroke\u003c\/th\u003e\n        \u003cth\u003eYears\u003c\/th\u003e\n        \u003cth\u003eNotes\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003e2-cylinder\u003c\/td\u003e\n\u003ctd\u003e6–8\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1987\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003e3-cylinder\u003c\/td\u003e\n\u003ctd\u003e25–35\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1976–2001\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003eV4 Crossflow\u003c\/td\u003e\n\u003ctd\u003e50–65\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1976–1994\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003eV4 Crossflow\u003c\/td\u003e\n\u003ctd\u003e70–75\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1986–1997\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003eV4 Crossflow\u003c\/td\u003e\n\u003ctd\u003e85–88\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1977–1996\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003eV4 Crossflow\u003c\/td\u003e\n\u003ctd\u003e90\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1984–1996\u003c\/td\u003e\n\u003ctd\u003e90-degree models only for 1995–1996\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003eV4 Crossflow\u003c\/td\u003e\n\u003ctd\u003e100\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1985–1997\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003eV4 Crossflow\u003c\/td\u003e\n\u003ctd\u003e105\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1979–1980\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003eV4 Crossflow\u003c\/td\u003e\n\u003ctd\u003e115\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1984–2005\u003c\/td\u003e\n\u003ctd\u003e90-degree models only for 1995–1996\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003eV4 Looper\u003c\/td\u003e\n\u003ctd\u003e105–125\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1995–2001\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003eV4 Looper\u003c\/td\u003e\n\u003ctd\u003e135–140\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1977–1983\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003eV6 Crossflow\u003c\/td\u003e\n\u003ctd\u003e140–155\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1978–1987\u003c\/td\u003e\n\u003ctd\u003eV6 engine needs 2 fuel pumps\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003eV6 Crossflow\u003c\/td\u003e\n\u003ctd\u003e175–185\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1977–1983\u003c\/td\u003e\n\u003ctd\u003eV6 engine needs 2 fuel pumps\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003eV6 Crossflow\u003c\/td\u003e\n\u003ctd\u003e200–235\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1977–1984\u003c\/td\u003e\n\u003ctd\u003eV6 engine needs 2 fuel pumps\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n  \u003c\/div\u003e\n\n  \u003ch2\u003eTechnical Specs\u003c\/h2\u003e\n  \u003cdl\u003e\n    \u003cdt\u003eProduct Type\u003c\/dt\u003e\n\u003cdd\u003eFuel Pump\u003c\/dd\u003e\n    \u003cdt\u003eInstallation\u003c\/dt\u003e\n\u003cdd\u003eExternal Pulse Style\u003c\/dd\u003e\n    \u003cdt\u003eFuel Type\u003c\/dt\u003e\n\u003cdd\u003eGasoline\/Petrol\u003c\/dd\u003e\n    \u003cdt\u003eConnection\u003c\/dt\u003e\n\u003cdd\u003e3-Port (Inlet, Outlet, Pulse)\u003c\/dd\u003e\n    \u003cdt\u003eHousing Material\u003c\/dt\u003e\n\u003cdd\u003ePlastic\/Metal\u003c\/dd\u003e\n    \u003cdt\u003eHousing Color\u003c\/dt\u003e\n\u003cdd\u003eBlack\/Silver\u003c\/dd\u003e\n    \u003cdt\u003eWeight\u003c\/dt\u003e\n\u003cdd\u003e0.2 kg (0.44 lb)\u003c\/dd\u003e\n    \u003cdt\u003eFitting Type\u003c\/dt\u003e\n\u003cdd\u003eHose Barb\u003c\/dd\u003e\n    \u003cdt\u003eOther Technical Attributes\u003c\/dt\u003e\n\u003cdd\u003eUses engine pulse for operation; mechanical diaphragm style pump\u003c\/dd\u003e\n  \u003c\/dl\u003e\n\n  \u003ch2\u003eWhat’s in the Box\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003e1 x Fuel Pump\u003c\/li\u003e\n    \u003cli\u003e1 x Gasket\u003c\/li\u003e\n    \u003cli\u003e1 x Fuel Filter\u003c\/li\u003e\n    \u003cli\u003e1 x Clip\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n  \u003col\u003e\n    \u003cli\u003eBefore you begin, disconnect the negative battery terminal for safety.\u003c\/li\u003e\n    \u003cli\u003eRelieve any pressure in the fuel system according to the manufacturer's service manual.\u003c\/li\u003e\n    \u003cli\u003eUse hose clamps to pinch off the fuel inlet, outlet, and pulse lines to prevent fuel spillage.\u003c\/li\u003e\n    \u003cli\u003eCarefully disconnect the lines from the old fuel pump. Note their orientation.\u003c\/li\u003e\n    \u003cli\u003eUnbolt and remove the old pump assembly from the engine block.\u003c\/li\u003e\n    \u003cli\u003eThoroughly clean the mounting surface, ensuring it is free of old gasket material and debris.\u003c\/li\u003e\n    \u003cli\u003ePlace the new gasket onto the engine block, followed by the new fuel pump.\u003c\/li\u003e\n    \u003cli\u003eSecure the a pump with the mounting bolts, tightening them to the torque specified in your service manual.\u003c\/li\u003e\n    \u003cli\u003eReconnect the fuel and pulse lines to the correct ports on the new pump and secure them.\u003c\/li\u003e\n    \u003cli\u003eReconnect the battery terminal, prime the fuel system, and carefully inspect for any leaks before starting the engine.\u003c\/li\u003e\n  \u003c\/ol\u003e\n\n  \u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow do I confirm this pump fits my specific engine model?\u003c\/summary\u003e\n    \u003cp\u003ePlease review the Engine \u0026amp; Model Compatibility table on this page. Match your engine's brand, model, HP, and year range. Note that some V6 engines require two of these pumps.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhy do V6 Crossflow engines require two fuel pumps?\u003c\/summary\u003e\n    \u003cp\u003eThe Johnson\/Evinrude V6 Crossflow engine design requires two separate fuel pumps to adequately supply fuel to both cylinder banks, ensuring balanced performance and preventing fuel starvation under load.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat are common symptoms of a failing fuel pump?\u003c\/summary\u003e\n    \u003cp\u003eSigns of a faulty fuel pump include the engine sputtering at high speeds, loss of power, difficulty starting, or stalling, especially under load or when warm.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow does this pulse-style pump work?\u003c\/summary\u003e\n    \u003cp\u003eThis is a mechanical diaphragm pump. It uses the alternating positive and negative pressure (a \"pulse\") from the engine's crankcase to move the internal diaphragm, which in turn draws fuel in and pushes it out toward the carburetors.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eIs this a complete kit? Is a gasket included?\u003c\/summary\u003e\n    \u003cp\u003eYes, this is a kit that includes the fuel pump itself, a new mounting gasket, a fuel filter, and a clip, as shown in the \"What's in the Box\" section.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat is the recommended maintenance for this fuel pump?\u003c\/summary\u003e\n    \u003cp\u003eThese pumps are not typically serviceable and should be replaced if they fail. To prolong its life, ensure your fuel tank is clean and regularly replace your engine's primary fuel filter to prevent debris from damaging the pump diaphragm.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eIs this an official OEM part?\u003c\/summary\u003e\n    \u003cp\u003eThis listing is an aftermarket replacement (not OEM). It is built to OEM-level specifications with comparable materials and manufactured in an ISO 9002 facility, with batch inspections for quality and consistency.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow fast is shipping?\u003c\/summary\u003e\n    \u003cp\u003eWe ship worldwide quickly—typical transit is 5–15 days. Standard shipping is free for most destinations; expedited options appear at checkout where available.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat is the warranty and return policy?\u003c\/summary\u003e\n    \u003cp\u003eThis part is covered by a 1-year warranty against manufacturing defects under normal marine use. If you encounter an issue, please contact our support team with your order details. Returns are accepted within our standard window for unused items in their original condition. See our policy page or reach out for instructions.\u003c\/p\u003e\n  \u003c\/details\u003e\n\n  \u003ch2\u003eSafety \u0026amp; Important Info\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eVerify images and specifications against your original part. If anything differs—even if your model appears compatible—do not purchase.\u003c\/li\u003e\n    \u003cli\u003eThis is an aftermarket replacement, not an OEM component.\u003c\/li\u003e\n    \u003cli\u003eProfessional installation is recommended for safety and performance.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch2\u003eAbout Sea Sierra\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePro-Grade Standards\u003c\/strong\u003e — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eFast Global Fulfillment\u003c\/strong\u003e — Free standard delivery to most regions in 5–15 days.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eManufacturer-Direct Value\u003c\/strong\u003e — Fair pricing without compromising on materials or quality control.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50717910073659,"sku":"NF-YWKI-QPQI","price":17.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/NF-YWKI-QPQI.png?v=1762938209","url":"https:\/\/seasierra.com\/products\/fuel-pump-fits-johnson-evinrude-25-140-hp-replaces-438559-433390-398385","provider":"SeaSierra","version":"1.0","type":"link"}