Subaru OEM 1st Gear Driven (06-07 STI) | 32231AB270

Overview

The Genuine Subaru OEM 1st Gear Driven (Part #32231AB270) is the factory-original replacement gear for the 6-speed manual transmission found in the 2006–2007 Subaru WRX STI. Designed to OEM specifications, this precision-machined gear ensures exact fitment, smooth engagement, and the durability demanded by high-performance STI drivetrain applications. Whether you're rebuilding a worn transmission or replacing a damaged gear, this is the only part that guarantees factory performance and reliability.

Key Features & Benefits

• Genuine Subaru OEM Quality — Manufactured to factory specifications for the 2006–2007 STI 6-speed transmission, ensuring perfect fitment and performance every time.
• Precision Machined — Engineered to meet the demanding torque and power output of the EJ257 turbocharged engine, providing reliable 1st gear engagement under aggressive driving conditions.
• Exact OEM Replacement — Directly replaces the worn or damaged driven gear in the transmission without modification, preserving factory shift feel and drivetrain integrity.
• Factory Warranty Coverage — As a Genuine Subaru part, this gear is backed by Subaru's OEM parts warranty when installed by an authorized dealer or qualified technician.
• Sourced Direct from Subaru — Authentic part, not an aftermarket imitation — eliminates compatibility guesswork and ensures long-term reliability.

What's Included

• 1x Genuine Subaru 1st Gear Driven — Part #32231AB270

Specifications

Fitment & Compatibility

This gear is designed specifically for the following vehicles:

Note: Verify your specific transmission code and build date before ordering. This part is application-specific to the 2006–2007 STI 6-speed manual transmission. If you are unsure of compatibility, consult your Subaru dealer or a qualified transmission specialist using your VIN.

Installation

Installation of the 1st Gear Driven requires full transmission disassembly and is intended for qualified transmission rebuilders or professional automotive technicians with experience in Subaru manual transmission systems. This is not a DIY bolt-on part. Professional installation by a Subaru dealer or specialist is strongly recommended to ensure correct assembly, proper gear clearances, and to maintain warranty coverage.