Dorman 977-589 Fuel Injection Throttle Body

Electronic Throttle Body for Ford Fusion, Mercury Milan, and Lincoln Zephyr

Dorman 977-589 is a 100% new electronic throttle body built to match original equipment fit and performance. It uses a corrosion-resistant aluminum housing and includes a new throttle position sensor and circuit board for dependable throttle response on gas applications.

Compatible With 2006-2009 Ford Fusion, 2006-2009 Mercury Milan, and 2006 Lincoln Zephyr, this electronic throttle body is a direct-fit replacement for vehicles using a flanged inlet and outlet design. The Dorman 977-589 is engineered for precise airflow control and consistent electronic throttle operation.

Key Features

• Electronic throttle body with integrated throttle position sensor
• 100% new construction, not remanufactured
• Corrosion-resistant aluminum body with silver finish
• Flanged inlet and outlet design for OE-style fitment
• Female blade electrical connection with 6 terminals
• 2.486 bore diameter for matched airflow control
• Fuel system type: gas

Detailed Description

Dorman 977-589 is a fuel injection throttle body designed for Ford Fusion, Mercury Milan, and Lincoln Zephyr applications from 2006 through 2009. It is built as a direct OE-style replacement with a new sensor and circuit board, helping maintain stable throttle input and consistent engine response. The aluminum housing adds corrosion resistance, while the electronic throttle body design supports modern drive-by-wire systems.

This part cross-references Spectra Premium TB1017 and Standard Ignition S20028 for the same application. If you are replacing a worn throttle body on a 2006-2009 Ford Fusion, 2006-2009 Mercury Milan, or 2006 Lincoln Zephyr, part number 977-589 provides the correct electronic configuration and mounting style for those vehicles.

What It Helps Address

• Throttle response issues caused by a worn electronic throttle body
• Idle instability related to throttle plate or sensor wear
• Drive-by-wire faults tied to a failing throttle position sensor
• Airflow control problems from corrosion or internal component wear
• Check engine light conditions associated with throttle body performance

Installation Notes and Tips

Verify the inlet and outlet flange style, electrical connector type, and bore diameter before installation. This throttle body does not include a gasket or seal, and installation hardware is not included. After installation, follow the vehicle manufacturer’s relearn or calibration procedure if required for electronic throttle systems.

Quality Assurance

Dorman manufactures this throttle body as a new replacement component with OE-style fit and performance targets. The updated sensor and circuit board are included to support reliable operation in the specified Ford, Mercury, and Lincoln applications.