ARRMA ARA311206 Pinion Gear 20T 0.5 MOD CNC 2.3mm Bore

The ARRMA ARA311206 pinion gear is a 20-tooth, 0.5 MOD CNC-machined replacement gear designed for use in compatible ARRMA RC models that run a 2.3mm motor shaft. Pinion gears sit at the heart of the drivetrain, transferring power directly from the motor to the spur gear, so running a worn or damaged pinion will cost you efficiency and can accelerate spur gear wear. Swapping it out with a fresh OEM-spec part like the ARA311206 brings the drivetrain back to factory condition and keeps your RC car running as intended.

Key Features

• 20-tooth (20T) tooth count with 0.5 MOD pitch for precise mesh with compatible spur gears
• CNC-machined construction for consistent tooth geometry and dimensional accuracy
• 2.3mm bore diameter sized for motors commonly used across the ARRMA lineup
• Direct OEM replacement — no modification required for compatible models

Compatible With

• Compatible ARRMA models running a 2.3mm motor shaft and 0.5 MOD drivetrain
• Verify your specific ARRMA model's pinion specification before ordering

What's Included

• 1x ARRMA ARA311206 20T 0.5 MOD pinion gear (2.3mm bore)