Bosch 66811 Direct Injection High Pressure Fuel Pump

Reliable High Pressure Fuel Pump for BMW Vehicles

The Bosch GDI High Pressure Pump (New) part number 66811 is designed to deliver precise fuel pressure for optimal engine performance. This electric, internal direct injection high pressure fuel pump is engineered specifically for a range of BMW models, ensuring compatibility and reliability.

• Electric direct injection high pressure fuel pump
• Internal pump design for seamless integration
• Single outlet configuration
• New, not remanufactured
• Compatible with multiple BMW models including 335i, 435i, 535i, 640i, 740i, M2, X1, X3, X4, X5, and X6

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

The Bosch GDI High Pressure Pump (New) product line focuses on delivering precise fuel delivery solutions for gasoline direct injection systems. This line emphasizes new, high-quality components designed to maintain factory specifications and support the demanding fuel pressure requirements of modern BMW engines. The 66811 pump is part of this line, providing a reliable replacement option for direct injection fuel systems.

Detailed Product Description

This Bosch direct injection high pressure fuel pump is an electric unit designed for internal mounting within the fuel system. It features a single outlet and does not include gaskets or mounting hardware, so ensure compatibility with your vehicle’s existing components. The pump is new and built to meet OEM standards, making it suitable for BMW models such as the 335i, 435i, 535i, 640i, 740i series, as well as performance and SUV models like the M2, X3, and X5. The internal design supports efficient fuel delivery under high pressure, critical for the performance and emissions control of direct injection engines.

Common Applications and Issues Addressed

• Restores proper fuel pressure in BMW direct injection systems
• Resolves engine hesitation or stalling related to fuel delivery
• Addresses fuel pump failure symptoms such as rough idling or poor acceleration
• Prevents misfires caused by inconsistent fuel pressure
• Supports fuel system reliability in turbocharged BMW engines

Installation Notes and Tips

Installation requires removal of the existing internal high pressure fuel pump. Since mounting hardware and gaskets are not included, reuse existing components or source OEM parts as needed. Ensure the fuel system is depressurized before removal to avoid fuel spray. Proper torque specifications should be followed to maintain sealing and pump integrity. This pump is designed for electric operation and must be connected to the vehicle’s fuel system wiring harness correctly.

Quality Assurance and Warranty

The Bosch GDI High Pressure Pump (New) part number 66811 is manufactured to meet strict quality standards for durability and performance. As a new component, it provides reliable operation consistent with OEM specifications. Warranty coverage details should be confirmed with the point of purchase or Bosch directly, as they may vary.