Electric Fuel Pump Assembly Compatible with Volvo Penta 4.3GXI 4.3OSI 5.0GXI 5.0OSI 5.7GI 5.7GXI 5.7OSI 5.7OSXI Marine Engines, Replaces 21608511 21545138 21397771 3594444 3861355 3860210

Professional Marine EFI Fuel Pump AssemblyThis electric fuel pump assembly is engineered specifically for Volvo Penta 4.3L, 5.0L and 5.7L marine engines equipped with EFI systems. Designed as a direct OEM replacement, it restores proper fuel pressure and engine performance for stern drive and inboard applications.Designed for Complete System ReplacementUnlike single-pump replacements, this is a complete module assembly including:High pressure pump connectionLow pressure pump socketFuel supply lineFuel return lineVent line to intake manifoldFuel inlet from gas tankCirculating water line (17.5” hose included)This integrated design simplifies installation and reduces the risk of leaks or pressure imbalance.Fix Common Fuel Pump Failure SymptomsA failing marine fuel pump may cause:Whining noise from fuel tankDifficulty starting engineEngine hesitation or sputteringStalling when engine is hotPower loss under loadInconsistent fuel deliveryReplacing the entire assembly ensures stable fuel pressure and smooth engine performance.Built for Marine DurabilityMarine engines operate in high-humidity, high-vibration environments. This fuel pump assembly features durable housing and corrosion-resistant components designed to handle demanding boating conditions.Buy with Confidence – 2-Year WarrantyWe stand behind our product with a 2-year warranty. If you are not completely satisfied with your purchase, our support team is ready to assist you.

• 【OEM Fit for Volvo Penta】This electric fuel pump assembly is compatible with Volvo Penta 4.3GXI, 4.3OSI, 5.0GXI, 5.0OSI, 5.7GI, 5.7GXI, 5.7OSI and 5.7OSXI marine engines. Direct replacement for OEM 21608511, 21545138, 21397771, 3594444, 3861355, 3860210. Designed for stern drive and inboard EFI applications.
• 【2-Year Warranty Support】Backed by a 24-month warranty for peace of mind. If you experience any issue with fitment or performance, contact us directly for professional support and quick resolution.
• 【Complete Pump Assembly】Includes high pressure pump port, low pressure pump socket, supply line, return line, vent line, fuel tank inlet and circulating water line (17.5” hose included). Complete assembly design reduces installation time and eliminates the need to reuse worn components.
• 【Fix Hard Starting & Power Loss】Replaces worn or failing pumps that cause whining fuel tank noise, hard starting, engine sputtering, stalling when hot, power loss under load, and unstable fuel pressure. Restores proper fuel delivery for smooth engine performance on the water. Marine-Grade Construction for Harsh Environments
• 【Built for Marine Use】Built with corrosion-resistant materials for marine conditions. Engineered to withstand heat, vibration and continuous fuel circulation. Designed to meet OEM performance standards for reliable boating operation.