Dorman 977-902 Fuel Injection Throttle Body

OE FIX Throttle Body for Chrysler, Dodge, Jeep, and Ram

Dorman 977-902 is an electronic fuel injection throttle body built for select Chrysler, Dodge, Jeep, and Ram applications. It addresses common OE throttle body failures tied to moisture intrusion, oil contamination, and internal electronic wear by using a non-contact Hall effect sensor and a proprietary Sensor Shield butterfly shaft seal.

• Electronic throttle body with a non-contact Hall effect sensor
• Proprietary Sensor Shield butterfly shaft seal helps reduce future contamination-related failures
• Aluminum housing with natural finish
• Throttle position sensor included
• Gasket included
• Blade-style connector with 6 terminals
• Non-flanged inlet and outlet design
• 3.17 in. bore diameter

Detailed Product Overview

This Dorman OE FIX throttle body is engineered as a direct replacement for vehicles that use an electronic gas throttle body in the fuel injection system. It is a strong match for drivers searching for a throttle body for 2013-2023 Chrysler 300, 2013-2023 Dodge Charger, 2013-2023 Dodge Challenger, 2014-2023 Jeep Grand Cherokee, 2013-2023 Ram 1500, and other listed applications. The aluminum construction, integrated throttle position sensor, and sealed electronic design support consistent throttle response in everyday driving.

This part cross-references Mopar 53034251AD and Spectra Premium TB1181 for the same application. Dorman 977-902 is also listed among interchange references including 53034251AB, 53034251AC, RTB1078, and V33810019.

What This Part Helps Address

• Throttle response issues caused by a failing electronic throttle body
• Check engine lights related to throttle position sensor faults
• Idle quality problems linked to internal throttle body wear
• Contamination-related failures from moisture or oil intrusion
• Driveability concerns on Chrysler, Dodge, Jeep, and Ram vehicles with electronic throttle control

Installation Notes and Tips

Verify connector style, bore size, and vehicle application before installation. This throttle body uses a male electrical connection with a blade terminal type and does not include mounting hardware. The gasket is included, and the unit is not throttle body mounted. After installation, follow the vehicle manufacturer’s relearn or calibration procedure if required for electronic throttle systems.

Quality Assurance

Dorman’s OE FIX design focuses on addressing known failure points in the original throttle body design by using a non-contact sensor and improved shaft sealing. That approach is intended to improve long-term reliability in the same Chrysler, Dodge, Jeep, and Ram applications covered by this part.