AR310876 Pinion Gear 20T 0.8 Mod 4x4 BLX 3S (ARAC7878)

This is a 20-tooth, 0.8-module pinion gear designed for 4x4 BLX 3S RC models. It transfers power from the motor to the drivetrain with precise engagement, delivering reliable performance even in fast, demanding action.

The package includes one pinion gear and an M4 x 4 mm set screw. The teeth are precisely machined for smooth operation, and the pinion boss carries the tooth count molded in for easy size recognition during setup and maintenance.