Traxxas 34-T 0.8 Metric Pitch 5mm Shaft RC Pinion Gear - 5639

The Traxxas 5639 is a 34-tooth pinion gear designed for Traxxas RC models using a 5mm motor shaft, including the 85086-4. Manufactured to a 0.8 metric pitch, it is also cross-compatible with standard 32-pitch spur gears, giving you flexibility when pairing it with existing drivetrain components. A set screw is included for secure shaft retention. This is a direct OEM Traxxas replacement pinion gear, ensuring correct fitment and mesh geometry without modification.

Key Features

• 34-tooth pinion gear in 0.8 metric pitch, compatible with 32-pitch spur gears
• Fits 5mm motor shafts as found on many Traxxas brushed and brushless motor configurations
• Includes a set screw for firm, reliable shaft engagement
• Direct Traxxas OEM part — part number TRX5639 — ensuring precise fit and gear mesh
• Suitable as a like-for-like replacement when the original pinion gear shows wear or damage

Compatible With

• Traxxas 85086-4
• Traxxas models using a 5mm motor shaft and 0.8 metric / 32-pitch spur gear pairing

What's Included

• 1 x Traxxas 34T pinion gear (0.8 metric pitch / 32-pitch compatible, 5mm shaft bore)
• 1 x Set screw