{"product_id":"bosch-66821-direct-injection-high-pressure-fuel-pump","title":"Bosch 66821 Direct Injection High Pressure Fuel Pump","description":"\u003ch2\u003eOverview of Bosch GDI High Pressure Pump (New)\u003c\/h2\u003e\u003cp\u003eThe Bosch GDI High Pressure Pump (New) is designed to meet the precise fuel delivery requirements of direct injection systems. Engineered for select Mercedes-Benz models, this electric internal fuel pump ensures consistent high-pressure fuel supply for optimal engine performance.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eBrand: Bosch\u003c\/li\u003e\n\u003cli\u003eBrand Line: GDI High Pressure Pump (New)\u003c\/li\u003e\n\u003cli\u003ePart Number: 66821\u003c\/li\u003e\n\u003cli\u003eType: Direct Injection High Pressure Fuel Pump\u003c\/li\u003e\n\u003cli\u003eElectric operation, internal mounting\u003c\/li\u003e\n\u003cli\u003eIncludes one high pressure pump per package\u003c\/li\u003e\n\u003cli\u003eCompatible with multiple Mercedes-Benz models\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eProduct Line Details\u003c\/h2\u003e\u003cp\u003eThe Bosch GDI High Pressure Pump (New) line focuses on delivering reliable, new direct injection fuel pumps designed specifically for high-pressure fuel delivery systems. This product line emphasizes precision engineering and compatibility with modern fuel injection technology, ensuring proper fuel atomization and engine efficiency in vehicles equipped with gasoline direct injection.\u003c\/p\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThis Bosch direct injection high pressure fuel pump (part number 66821) operates electrically and is designed for internal installation within the fuel system. It features a single outlet and does not include gaskets or mounting hardware, so professional installation with appropriate components is recommended. The pump is intended for use in Mercedes-Benz vehicles such as the C300, C350, E350, E400, GLE350, GLK350, ML350, R350, and SLK350 models. Its precise fuel delivery supports the high-pressure requirements of GDI engines, contributing to efficient combustion and engine performance.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Issues Addressed\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eRestores proper fuel pressure in direct injection systems\u003c\/li\u003e\n\u003cli\u003eResolves engine hesitation or stalling related to fuel delivery\u003c\/li\u003e\n\u003cli\u003eEliminates rough idling caused by inconsistent fuel supply\u003c\/li\u003e\n\u003cli\u003eAddresses fuel pump failure symptoms in Mercedes-Benz GDI engines\u003c\/li\u003e\n\u003cli\u003eSupports fuel system maintenance and component replacement\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eInstallation requires removal of the old high pressure fuel pump and replacement with this new Bosch unit. Since the pump is internally mounted and electric, ensure all electrical connections are secure and fuel lines are properly sealed. Note that gaskets and mounting hardware are not included, so these should be sourced separately. Professional installation is recommended to maintain fuel system integrity and safety.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eAs a new component from Bosch, this GDI High Pressure Pump (New) meets OEM standards for fit and function. Bosch is known for stringent quality control in fuel system components. While specific warranty details are not provided here, Bosch typically offers limited warranties on new fuel pumps. Verify warranty coverage with the supplier or manufacturer documentation.\u003c\/p\u003e","brand":"Bosch","offers":[{"title":"Default Title","offer_id":44520746451125,"sku":"BBHK-66821","price":224.36,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/BS_66821_Fro.jpg?v=1775059652","url":"https:\/\/www.partcatalog.com\/products\/bosch-66821-direct-injection-high-pressure-fuel-pump","provider":"PartCatalog","version":"1.0","type":"link"}