Bosch 66811 Direct Injection High Pressure Fuel Pump

Bosch GDI High Pressure Pump for BMW

Bosch 66811 is a new direct injection high pressure fuel pump for select BMW models with GDI systems. It is built as an internal electric pump and is engineered to deliver consistent fuel pressure for direct injection performance on applications such as the BMW 335i, 535i, X5, and M2.

The Bosch GDI High Pressure Pump line brings premium fuel system engineering to the aftermarket. Bosch manufactures these pumps on the same production lines used for original equipment parts and applies the same quality standards during production and testing to support long service life and dependable operation.

Key Features

• Brand: Bosch
• Part number: 66811
• Direct injection high pressure fuel pump
• Electric, internal pump design
• New replacement part
• Outlet quantity: 1
• No fuel pump gasket included
• No mounting hardware included
• Cross-reference: BMW 13518604231

Detailed Description

This Bosch 66811 high pressure fuel pump is designed for BMW gasoline direct injection systems that require stable fuel delivery under high pressure. It supports a wide range of 2015-2019 BMW applications, including 640i Gran Coupe, 640i xDrive Gran Coupe, X6, 640i, 640i xDrive, M2, X4, X5, 535i GT, 535i GT xDrive, X3, 335i GT xDrive, 435i, 435i Gran Coupe, 435i xDrive, 435i xDrive Gran Coupe, 535i, 535i xDrive, ActiveHybrid 5, M235i, M235i xDrive, 335i, 335i xDrive, 740i, 740Li, 740Li xDrive, and X1. If you are searching for a BMW GDI high pressure pump replacement or Bosch 66811 fuel pump for BMW 335i, 535i, X5, or M2, this part matches the listed applications.

What It Helps Fix

• Hard starting caused by low high-pressure fuel delivery
• Fuel pressure loss in direct injection systems
• Engine hesitation or stumble under load
• Fuel starvation symptoms related to pump wear
• Check engine light conditions tied to fuel pressure faults

Installation Notes and Tips

Verify the vehicle’s engine code and fuel system configuration before installation. This pump is an internal electric unit, so access is typically through the fuel system assembly rather than an external inline location. Replace any required seals or gaskets separately, since gasket and mounting hardware are not included. Confirm the connector, outlet layout, and OE cross-reference before final installation on BMW 640i, 535i, X3, X5, and related models.

Quality Assurance

Bosch manufactures this pump using the same production and testing standards applied to its original equipment fuel pumps. That OE-level process helps support consistent fit, function, and durability across the listed BMW applications. Bosch 66811 is a new part built for dependable direct injection fuel system service.