Dorman 977-912 Fuel Injection Throttle Body

OE Fix Electronic Throttle Body

Dorman 977-912 is an electronic fuel injection throttle body for select Chevrolet and Pontiac applications, including Chevrolet Cruze, Sonic, Trax, Cruze Limited, Aveo, and Pontiac G3. It is built with a non-contact Hall effect sensor and a proprietary Sensor Shield butterfly shaft seal to address common failure points tied to moisture, oil intrusion, and internal electronics wear.

Key Features

• Electronic throttle body for gas fuel systems
• Non-contact Hall effect sensor for throttle position feedback
• Sensor Shield butterfly shaft seal helps block moisture and oil intrusion
• Aluminum and plastic housing with natural finish
• Includes throttle position sensor and gasket
• 6-terminal female blade electrical connection
• Flanged inlet, non-flanged outlet
• 64 mm inlet diameter and 59 mm bore diameter

Detailed Description

This Dorman throttle body, part number 977-912, is an OE FIX replacement engineered for vehicles that use an electronic throttle body assembly. It is a direct-fit solution for 2011-2016 Chevrolet Cruze, 2012-2018 Chevrolet Sonic, 2013-2020 Chevrolet Trax, 2016 Chevrolet Cruze Limited, 2009-2011 Chevrolet Aveo, and 2009-2010 Pontiac G3. The design focuses on the internal sensor and shaft-seal areas that commonly fail in original equipment units, helping restore stable throttle response and consistent air delivery.

This part cross-references Bosch 0280750244 and Spectra Premium TB1240 for the same application. If you are searching for a Chevrolet Cruze throttle body replacement, Chevrolet Sonic electronic throttle body, or Chevrolet Trax throttle body assembly, Dorman 977-912 is built to match the listed applications and connector style.

What It Helps Address

• Throttle response issues caused by worn internal electronics
• Driveability problems related to moisture intrusion
• Oil contamination at the throttle shaft area
• Idle and acceleration complaints tied to throttle body wear
• Check engine light concerns related to throttle position control

Installation Notes and Tips

Verify connector style, inlet diameter, and bore size before installation. This throttle body uses a female electrical connection with a 6-terminal blade-style terminal layout. A gasket is included; mounting hardware is not included. After installation, follow the vehicle relearn or throttle adaptation procedure specified by the manufacturer for the Cruze, Sonic, Trax, Aveo, or G3 application.

Quality Assurance

Dorman OE FIX components are developed to address known failure points in original equipment designs. Part number 977-912 uses a non-contact Hall effect sensor and Sensor Shield sealing strategy to improve resistance to the conditions that commonly damage throttle bodies in these Chevrolet and Pontiac applications.