Traxxas 14-T Pinion Hardened Steel 5mm Shaft RC Gear - 5640

The Traxxas TRX5640 is a 14-tooth hardened steel pinion gear designed for Traxxas RC drivetrain systems, fitting any Traxxas motor with a 5mm shaft. Machined to 0.8 metric pitch, it is also cross-compatible with 32-pitch gear systems, making it a precise and durable replacement for worn or stripped pinion gears across a wide range of Traxxas models. The included set screw locks the gear securely onto the motor shaft, keeping your drivetrain running cleanly under load.

Key Features

• 14-tooth pinion gear with 0.8 metric pitch, fully compatible with 32-pitch spur gear setups
• Made from hardened steel for long-term durability in demanding RC drivetrain conditions
• Designed to fit 5mm motor shafts, common across many Traxxas brushed and brushless motor configurations
• Includes a set screw for secure shaft engagement without play or slippage
• Direct OEM Traxxas specification — ensures correct gear mesh when paired with compatible spur gears

Compatible With

• Traxxas models referencing part numbers: 101177-4, 37454-4, 58434-4, 67454-4, 67464-4, 68454-4, 90376-4, 90386-4
• Any Traxxas motor with a 5mm shaft using 0.8 metric pitch or 32-pitch gearing

What's Included

• 1x 14-tooth hardened steel pinion gear (TRX5640)
• 1x Set screw