{"product_id":"fellowes-mechanical-marine-fuel-pump-for-gm-5-0-5-7-305-350-gasket-included-oem-port-match","title":"Fellowes Mechanical Marine Fuel Pump for GM 5.0\/5.7 (305\/350) — Gasket Included, OEM Port Match","description":"\u003cp\u003e\u003cstrong\u003eA direct-replacement mechanical fuel pump designed for GM 5.0 (305) and 5.7 (350) marine engines, supplied with a gasket and engineered to match Mercruiser and OMC port configurations.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis B. Marine mechanical fuel pump fits many Chevrolet-derived marine powerplants used in boats, including common Mercruiser and OMC applications. It’s built to replace specific factory part numbers while keeping inlet and outlet orientation consistent with original installations, and a gasket is included for a straightforward fit. The pump is intended for marine environments where correct port location and reliable fuel delivery are essential for engine performance and serviceability.\u003c\/p\u003e\n\n\u003ch3\u003eWill this pump fit my GM 5.0 or 5.7 marine engine?\u003c\/h3\u003e\n\u003cp\u003eIf your vessel uses a Chevrolet-based 305 or 350 marine engine, this mechanical fuel pump is manufactured to match those configurations. It replaces several OEM Mercruiser and OMC part numbers so you can cross-reference compatibility before ordering.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDesigned for GM (Chevy) Marine 5.0 (305) and 5.7 (350) engines\u003c\/li\u003e\n  \u003cli\u003eReplaces Mercruiser 861678A, 861678A1, 97401A2, 8M0058164\u003c\/li\u003e\n  \u003cli\u003eCross-references OMC 509404 for OMC-powered boats\u003c\/li\u003e\n  \u003cli\u003eGasket included to match factory sealing requirements\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I check inlet and outlet port orientation before installation?\u003c\/h3\u003e\n\u003cp\u003ePort orientation matters for hose routing and preventing fuel line stress. Compare the new pump’s inlet and outlet positions to your existing pump or engine manifold so hoses reach without kinking.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eVisually verify inlet\/outlet locations on your current pump\u003c\/li\u003e\n  \u003cli\u003eConfirm hose length and route are compatible with the pump’s ports\u003c\/li\u003e\n  \u003cli\u003eEnsure pump mounts align with existing bolt pattern\u003c\/li\u003e\n  \u003cli\u003eUse the included gasket for correct sealing and alignment\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat are the key benefits and replacement part advantages?\u003c\/h3\u003e\n\u003cp\u003eThis pump provides a like-for-like replacement for worn or damaged factory units, restoring mechanical fuel delivery to carbureted marine engines. It’s supplied with the necessary gasket and made to match OEM specifications for a clean, reliable swap-out.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eOEM cross-reference compatibility reduces selection errors\u003c\/li\u003e\n  \u003cli\u003eIncluded gasket simplifies installation and leak prevention\u003c\/li\u003e\n  \u003cli\u003eManufactured to match inlet\/outlet placement of original units\u003c\/li\u003e\n  \u003cli\u003eHelps maintain proper fuel flow for carbureted engines\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAre there installation tips or maintenance notes I should follow?\u003c\/h3\u003e\n\u003cp\u003eInstallation is straightforward for a mechanically driven pump but must be done with care to ensure safety and long service life. Always work with a cool engine, clean mounting surfaces, and double-check fittings and torque specifications.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eReplace the old gasket with the included new gasket to prevent leaks\u003c\/li\u003e\n  \u003cli\u003eClean mating surfaces and inspect mounting studs for wear\u003c\/li\u003e\n  \u003cli\u003eVerify hose clamps are corrosion-resistant for marine use\u003c\/li\u003e\n  \u003cli\u003ePrime the system and check for leaks before starting the engine\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this product for: This mechanical fuel pump is intended for boat owners, marine mechanics, and restoration projects that use Chevrolet-based 5.0 (305) or 5.7 (350) marine engines and require a dependable OEM-compatible replacement. It’s especially useful when your original pump shows signs of wear, leakage, or incorrect pressure delivery, and for anyone who needs a direct-fit part that replaces common Mercruiser and OMC numbers while keeping correct port orientation and a gasket supplied for proper sealing.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does this pump include a gasket?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — the pump comes with a replacement gasket to ensure a proper seal during installation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Which OEM part numbers does it replace?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: It replaces Mercruiser 861678A, 861678A1, 97401A2, 8M0058164 and OMC 509404.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Fellowes","offers":[{"title":"Default Title","offer_id":48080852091038,"sku":"B01DJ70FOQ","price":76.82,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/fellowes-b-marine-front-view.jpg?v=1785790432","url":"https:\/\/northtrailauto.ca\/products\/fellowes-mechanical-marine-fuel-pump-for-gm-5-0-5-7-305-350-gasket-included-oem-port-match","provider":"North Trail Auto","version":"1.0","type":"link"}