Bosch 66850 Direct Injection High Pressure Fuel Pump

Direct Injection Fuel Pump Overview

Bosch 66850 is a new direct injection high pressure fuel pump for gasoline direct injection systems. It is built as an internal electric pump and is listed for multiple Hyundai and Kia applications, including Hyundai Tucson, Sonata, Accent, and Kia Optima, Forte5, and Rio.

Key Features

• New Bosch GDI high pressure fuel pump for direct injection fuel delivery.
• Internal electric design for in-system fuel pressure generation.
• Single outlet configuration.
• Gaskets are not included.
• Mounting hardware is not included.
• Built in Bosch production facilities and tested to the same quality standards used for original equipment pumps.

Detailed Description

This Bosch 66850 fuel pump is part of the GDI High Pressure Pump (New) line, which focuses on premium replacement fuel system components for gasoline direct injection engines. Bosch manufactures these pumps on the same production lines used for original equipment parts and applies the same quality controls before release to the aftermarket. For buyers searching for a Hyundai Tucson fuel pump, Kia Optima fuel pump, or a direct injection high pressure fuel pump for Hyundai Sonata applications, this part provides a direct replacement option for the listed vehicles.

This part cross-references Bosch 353202B220 for the same application.

What It Is Used For

• Restoring fuel pressure in a direct injection fuel system.
• Addressing hard starting caused by low high-pressure fuel delivery.
• Correcting drivability issues tied to inconsistent fuel pressure.
• Replacing a worn internal fuel pump in the listed Hyundai and Kia applications.

Installation Notes and Tips

Verify the vehicle application by year, make, and model before ordering. Confirm that the fuel system uses a direct injection high pressure pump and compare the original part number, including Bosch 66850 and 353202B220, to the removed unit. Because this is an internal electric pump, installation should follow the service procedure for the specific vehicle and fuel system.

Quality Assurance

Bosch states that these pumps are produced and tested to the same standards used for original equipment fuel pumps, with an emphasis on long service life and reliable operation.