Standard Ignition S20431 Fuel Injection Throttle Body

Fuel Injection Throttle Body for Subaru Applications

Restore throttle response and idle control with this Standard Ignition fuel injection throttle body, part number S20431. It is built for Subaru Forester, Crosstrek, Impreza, and XV Crosstrek applications that require an electronic throttle body with integrated idle air control and throttle position sensing.

Key Features

• Electronic throttle body assembly with gasket included
• Idle air control motor included for idle management
• Throttle position sensor included
• Female 1-way connector with 6 male blade terminals
• Gasket or seal included; hardware listed as seals
• Relearn required for installation
• Standard Ignition S20431 replacement for OE-style service

Detailed Description

Standard Ignition S20431 is a fuel injection throttle body assembly for Subaru electronic throttle control systems. The unit includes the electronic throttle body, gasket, idle air control motor, and throttle position sensor, giving you the core components needed for throttle airflow and idle regulation service. This part cross-references 16112AA380 and ETB768 for the same application. It is a direct service option for Subaru Forester, Subaru Crosstrek, Subaru Impreza, and Subaru XV Crosstrek models listed in the fitment data.

Compatible With: 2009-2012 Subaru Forester, 2012-2016 Subaru Impreza, 2013-2015 Subaru XV Crosstrek, 2014-2018 Subaru Forester, and 2016-2017 Subaru Crosstrek. The S20431 part number is also useful when searching for a Subaru throttle body replacement that matches the factory electronic connector and sensor layout.

Common Issues This Part Can Address

• Unstable or rough idle
• Throttle response delay or hesitation
• Electronic throttle body fault codes
• Airflow control problems at the throttle plate
• Driveability issues related to throttle position sensing

Installation Notes and Tips

Factory relearn procedure required after installation. Verify connector style, terminal count, and gasket sealing surface before installation. Because this assembly uses an electronic throttle control design, follow Subaru service procedures for throttle relearn and code clearing after replacement. Confirm fitment by year, model, and engine application before ordering the S20431 throttle body.

Quality Assurance

Standard Ignition supplies OE-style replacement components for electronic fuel and engine management service. This throttle body assembly is built for the listed Subaru applications and includes the components identified in the product data for a complete service replacement.