Throttle Body 12596576 for Chevrolet Express GMC Savana 1500 2500 3500 2003-2006

Throttle Body 12596576 for Chevrolet Express GMC Savana 1500 2500 3500

This throttle body, OEM cross-reference 12596576, meters airflow into the engine on Chevrolet Express and GMC Savana 1500, 2500, and 3500 vans from 2003 through 2006.

Overview

The throttle body is the air control valve mounted ahead of the intake manifold, and this unit 12596576 replaces a worn or faulty original on Chevrolet Express and GMC Savana vans. It regulates the volume of air entering the engine so idle quality, throttle response, and fuel delivery stay consistent. A direct-fit part for drivers and shops servicing 2003-2006 full-size vans.

Built For Performance

• OEM cross-reference 12596576 for straightforward replacement
• Machined aluminum housing resists heat and corrosion
• Electronic throttle actuator matched to factory calibration
• Integrated throttle position sensor mounting
• Precision bore for consistent airflow at idle and under load

Fits These Machines

• for Chevrolet Express 1500 2003-2006
• for Chevrolet Express 2500 2003-2006
• for Chevrolet Express 3500 2003-2006
• for GMC Savana 1500 2003-2006
• for GMC Savana 2500 2003-2006
• for GMC Savana 3500 2003-2006

On-The-Job Use

• Restoring idle stability on high-mileage vans
• Replacing a sticking or carbon-fouled throttle body
• Fleet maintenance on cargo and passenger vans
• Diagnosing drive-by-wire throttle faults

Specs At A Glance

Good To Know

Q: Does this throttle body need relearning after install? A: Most vehicles require a throttle relearn or idle reset with a scan tool after replacement. Follow the factory procedure for your model year to avoid rough idle.

Q: Can I clean the original instead of replacing it? A: Cleaning helps with light carbon buildup, but a worn bore or failed actuator means replacement is the reliable fix. This unit swaps in directly for the failed part.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.