Dorman 977-799 Fuel Injection Throttle Body

Electronic Throttle Body Replacement

Dorman 977-799 is a replacement electronic throttle body built for specified Cadillac applications with OE-style performance and fit. It addresses common throttle-body-related drivability concerns caused by oil contamination, dirt, and carbon buildup, while using aluminum and plastic construction for a direct replacement solution.

• Electronic throttle body with integrated throttle position sensor
• Aluminum throttle body with silver finish
• 6-terminal male electrical connection
• 1 inlet, 1 outlet, flanged inlet design
• Airflow rate: 102.187 CFM
• Fuel system grade: gas
• Package contents: 1 throttle body unit

Fitment Details

Compatible with Cadillac STS, Cadillac XLR, and Cadillac SRX applications across the listed model years. Fits 2005-2009 Cadillac STS, N/A; Fits 2004-2009 Cadillac XLR, N/A; Fits 2004-2006 Cadillac SRX, N/A. This part number, 977-799, is a direct replacement option for vehicles that use an electronic throttle body in these configurations.

This part cross-references Standard Ignition S20005 for the same application.

Common Symptoms This Part Addresses

• Erratic or unstable idle
• Malfunction indicator lamp illumination
• Throttle body fault codes or DTCs
• Reduced throttle response from carbon buildup
• Driveability issues caused by contamination inside the throttle body

Installation Notes

Verify connector style, inlet diameter, and mounting configuration before installation. This throttle body does not include mounting hardware or a gasket/seal, so reuse or replace those items as needed during service. Confirm the vehicle’s electronic throttle system requirements and clear any stored codes after installation.

Quality Assurance

Dorman designs this replacement throttle body to match the performance of the original equipment unit on specified vehicles and builds it from high-quality materials to help reduce repeat failures. Part number 977-799 is engineered for the listed Cadillac fitments and is backed by Dorman’s replacement-part manufacturing standards.