Bosch 66815 Direct Injection High Pressure Fuel Pump

Bosch GDI High Pressure Pump 66815

Bosch GDI High Pressure Pump 66815 is a new direct injection high pressure fuel pump for gasoline applications. It is built as an external, in-line electric fuel injection pump with a metal housing, quick-connect inlet, compression outlet, and integrated fuel filter and gasket components.

Compatible With select Ford and Lincoln models, including Ford Bronco, Bronco Sport, Edge, Explorer, Ranger, Escape, and Lincoln Corsair and Nautilus applications that use a GDI high pressure pump.

Key Features

• Direct injection high pressure fuel pump for gas engines
• External, in-line electric pump design
• Metal housing with bolt-on mounting type
• Quick-connect inlet and M16 x 1.5 outlet fitting
• Integrated fuel filter included
• Gasket, O-ring, and seal components included
• Female connector with male blade terminals
• New Bosch premium replacement, part number 66815

Product Details

Bosch GDI High Pressure Pump 66815 is engineered for fuel injection systems that require stable high-pressure delivery from a gasoline pump. The unit uses a square/rectangle connector, one inlet and one outlet, and a compression-style outlet connection for service-friendly installation. Bosch builds these aftermarket fuel pumps on the same production lines used for Bosch OE fuel pumps and tests them to the same quality standards, supporting consistent performance and long service life. The Bosch GDI High Pressure Pump line is focused on direct injection fuel delivery for modern engines that depend on precise pressure control. If you are replacing a worn Bosch 66815 pump on a Ford Bronco, Ford Explorer, or Lincoln Corsair, this part is built for the same application family.

This part cross-references Bosch 66815 for the same application.

Common Problems This Pump Can Address

• Hard starting caused by insufficient high-pressure fuel delivery
• Fuel pressure loss in direct injection systems
• Engine hesitation or stumble under load
• Fuel starvation symptoms from a failing external pump
• Check engine light conditions related to fuel pressure performance

Installation Notes and Tips

Verify the inlet and outlet sizes, connector style, and mounting type before installation. This pump uses an external, bolt-on layout with a quick-connect inlet and compression outlet, so the fuel line connections should be inspected for wear, contamination, or damage during replacement. Confirm the vehicle’s fuel system requirements and match the application to the listed Ford and Lincoln fitment before service.

Quality Assurance

Bosch manufactures this premium fuel pump to OE-level production and testing standards used for Bosch original equipment fuel pumps. That process supports reliable fitment and consistent fuel delivery for direct injection applications.

• Fits 2021-2025 Ford Bronco, N/A
• Fits 2021-2024 Ford Bronco Sport, N/A
• Fits 2019-2024 Ford Edge, N/A
• Fits 2020-2024 Ford Explorer, N/A
• Fits 2019-2024 Ford Ranger, N/A
• Fits 2020-2024 Lincoln Corsair, N/A
• Fits 2019-2023 Lincoln Nautilus, N/A
• Fits 2020-2022 Ford Escape, N/A