ARRMA AR310770 / ARAC7881 Pinion Gear 48DP 19T

The ARRMA AR310770 Pinion Gear 48DP 19T (also known by legacy part number ARAC7881) is a genuine OEM replacement 19-tooth 48DP pinion gear for compatible ARRMA vehicles. The pinion gear meshes with the spur gear to transfer motor power into the drivetrain. Pinion gear selection directly affects top speed and acceleration — this 19T gear provides a balanced performance profile for most driving conditions.

Key Features

• Genuine ARRMA OEM replacement pinion gear
• 19-tooth, 48DP pitch
• Direct-fit replacement — no modification required
• Restores proper motor-to-drivetrain power transfer

Specifications