Traxxas 20T 0.8 Metric Pitch 5mm Shaft RC Pinion Gear - 5646

The Traxxas TRX5646 is a 20-tooth pinion gear designed for Traxxas RC vehicles running a 5mm motor shaft. It uses 0.8 metric pitch teeth, which are also compatible with 32-pitch gear systems, making it a versatile replacement for the stock drivetrain. The gear is secured via a set screw, allowing straightforward installation onto the motor shaft without specialised tools. If you're replacing a worn pinion or swapping gear ratios on a compatible Traxxas model, the TRX5646 is the correct OEM-spec part to reach for.

Key Features

• 20-tooth pinion gear with 0.8 metric pitch, cross-compatible with 32-pitch spur gears
• Fits a 5mm motor shaft — the standard shaft diameter across a wide range of Traxxas electric motors
• Secured by a set screw for a firm, positive fit on the shaft
• OEM Traxxas specification ensures correct mesh with stock spur gears
• Listed under Traxxas part number TRX5646 for accurate ordering and cross-referencing

Compatible With

• Traxxas model 101177-4
• Traxxas model 67454-4
• Traxxas model 90376-4
• Traxxas model 90386-4
• Vehicles using a 5mm motor shaft with 0.8 metric pitch or 32-pitch drivetrain

What's Included

• 1x Traxxas 20T pinion gear (0.8 metric pitch / 32-pitch compatible, 5mm shaft bore) with set screw