Subaru OEM 3rd & 4th Gear Driven Subaru STI 2004-2006 | 32254AA460

Overview

The Genuine Subaru OEM 3rd & 4th Gear Driven (Part #32254AA460) is a factory-original transmission component engineered specifically for the 2004–2006 Subaru Impreza WRX STI. Built to Subaru's exact manufacturing tolerances, this driven gear delivers the precise fit and material quality required for optimal power transfer and confident shift feel in the STI's close-ratio 6-speed gearbox. Whether you're rebuilding a high-mileage transmission or replacing a damaged gear, this OEM part restores your drivetrain to factory performance standards without compromise.

Key Features & Benefits

• Genuine Subaru OEM Quality – Manufactured to Subaru's factory specifications for the correct fit, finish, and long-term durability right out of the box.
• Exact Gear Ratio Preservation – Maintains the factory 3rd and 4th gear ratio geometry critical to the STI's performance-tuned drivetrain and driving dynamics.
• Precision Machined – Meets the tight tolerances required for smooth engagement, reduced wear, and reliable power delivery under high-performance and track driving conditions.
• Direct OEM Replacement – No modification, adaptation, or custom fitting required; drops directly into the factory STI transmission housing.
• Factory Warranty Backed – Genuine Subaru OEM parts are covered under Subaru's parts warranty when installed by an authorized Subaru dealer.

What's Included

• 1x Genuine Subaru OEM 3rd & 4th Gear Driven – Part #32254AA460

Specifications

Fitment & Compatibility

This Genuine Subaru OEM driven gear is compatible with the following vehicles:

Always verify your vehicle's transmission code and build date before ordering. If you are unsure of compatibility, consult your Subaru dealer or reference your VIN to confirm the correct part number for your application.

Installation

Installing this gear requires complete transmission disassembly and is recommended only for experienced transmission rebuilders or professional mechanics with hands-on familiarity with Subaru's 6-speed gearbox. During reassembly, proper torque specifications must be observed, and synchronizer condition, bearing clearances, and gear end-play should all be inspected. Refer to the official Subaru STI Factory Service Manual (FSM) for complete rebuild procedures and torque values.