Bosch 66804 Direct Injection High Pressure Fuel Pump

Overview of Bosch GDI High Pressure Pump (New) 66804

The Bosch GDI High Pressure Pump (New) part number 66804 is designed for precise fuel delivery in select Mercedes-Benz models. This electric, internal direct injection high pressure fuel pump ensures consistent fuel pressure for optimal engine performance in vehicles like the C300, E300, and Sprinter 1500.

• Electric direct injection high pressure fuel pump
• Internal mounting design for seamless integration
• Single outlet configuration
• New, not remanufactured unit
• Compatible with multiple Mercedes-Benz models including C300, GLC350e, and Sprinter 2500

About the Bosch GDI High Pressure Pump (New) Product Line

The Bosch GDI High Pressure Pump (New) product line focuses on delivering reliable, high-precision fuel pumps specifically engineered for gasoline direct injection systems. This line emphasizes new components designed to maintain factory specifications and fuel system integrity. The 66804 pump is part of this line, providing an electric, internal pump solution that supports efficient fuel delivery and engine responsiveness in Mercedes-Benz vehicles.

Detailed Product Description

This Bosch direct injection high pressure fuel pump is an electric unit 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 a range of Mercedes-Benz models such as the C350e, Metris, and SLK300, ensuring compatibility with their specific fuel delivery requirements. The new condition of the pump guarantees that it meets original equipment manufacturer standards for durability and performance.

Common Applications and Issues Addressed

• Restores proper fuel pressure in direct injection systems
• Resolves engine hesitation or stalling related to fuel delivery
• Eliminates rough idling caused by inconsistent fuel supply
• Addresses fuel pump failure symptoms in Mercedes-Benz C300 and GLC300 models
• Supports efficient fuel injection in hybrid models like the C350e and GLC350e

Installation Notes and Tips

Installation requires removal of the existing internal high pressure fuel pump. Since this pump does not include mounting hardware or gaskets, ensure all necessary components are sourced separately. Proper handling and adherence to manufacturer torque specifications are essential to avoid damage. It is recommended to have the installation performed by a qualified technician familiar with Mercedes-Benz fuel systems.

Quality Assurance and Warranty

The Bosch GDI High Pressure Pump (New) 66804 is manufactured to meet strict quality standards for direct injection fuel pumps. As a new part, it is designed to provide reliable operation consistent with factory specifications. Warranty coverage details should be confirmed at the time of purchase, typically reflecting Bosch’s standard warranty policies for new fuel system components.