{"product_id":"yanmar-fuel-feed-pump-121256-52021","title":"Yanmar Fuel Feed Pump Assembly 121256-52021 - OEM Fuel Lift Pump","description":"\u003cp\u003eGenuine OEM Yanmar fuel feed pump assembly (part number 121256-52021) designed to deliver reliable fuel transfer from the tank to your engine's injection system. This complete factory-spec pump assembly ensures consistent fuel flow and pressure, maintaining optimal engine performance and preventing fuel starvation issues.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eGenuine Yanmar OEM part - exact fit and performance\u003c\/li\u003e\n\u003cli\u003ePart Number: 121256-52021\u003c\/li\u003e\n\u003cli\u003eComplete pump assembly ready to install\u003c\/li\u003e\n\u003cli\u003ePrecision-engineered for consistent fuel delivery\u003c\/li\u003e\n\u003cli\u003eDurable construction for long service life\u003c\/li\u003e\n\u003cli\u003eMaintains proper fuel pressure and flow\u003c\/li\u003e\n\u003cli\u003eDirect replacement for worn or failed fuel pumps\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eFunction \u0026amp; Importance:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe fuel feed pump (also called a lift pump) is a critical component that transfers diesel fuel from the tank to the injection pump. It maintains the proper fuel pressure needed for efficient combustion and smooth engine operation. A failing fuel pump can cause hard starting, loss of power, rough running, or complete engine shutdown.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eSigns of Fuel Pump Failure:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDifficulty starting, especially when hot\u003c\/li\u003e\n\u003cli\u003eLoss of power under load\u003c\/li\u003e\n\u003cli\u003eEngine stalling or dying unexpectedly\u003c\/li\u003e\n\u003cli\u003eRough idle or surging\u003c\/li\u003e\n\u003cli\u003eVisible fuel leaks around the pump\u003c\/li\u003e\n\u003cli\u003eAir in the fuel system\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eInstallation:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAlways replace the mounting gasket when installing a new fuel pump (gasket sold separately). Ensure all fuel lines are clean and free of debris. Prime the fuel system after installation to remove air. Check for leaks before starting the engine. Torque mounting bolts to manufacturer specifications. Refer to your Yanmar service manual for detailed installation procedures specific to your engine model.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eVerify this part number matches your engine's requirements before ordering. Consult your Yanmar engine manual or parts diagram for your specific model, or contact technical support if you need assistance confirming compatibility.\u003c\/p\u003e\n\n\u003cp\u003eRestore reliable fuel delivery to your Yanmar diesel with this genuine OEM fuel feed pump assembly. Essential for maintaining peak engine performance and preventing fuel system failures.\u003c\/p\u003e","brand":"YAN","offers":[{"title":"Default Title","offer_id":43564307218468,"sku":"121256-52021","price":268.84,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5799\/7604\/files\/121256-52021_0fd48080-0595-43f1-8357-443033d8a305.png?v=1771974480","url":"https:\/\/marisolmarine.com\/products\/yanmar-fuel-feed-pump-121256-52021","provider":"Marisol Marine Company","version":"1.0","type":"link"}