Koswork 32P M0.8 27T Lightweight Hardened Steel RC Pinion Gear 5mm Shaft - KOS03000-27

The Koswork KOS03000-27 is a 32P M0.8 pitch, 27-tooth pinion gear machined from hardened steel for use with 5mm motor shafts in RC cars. Designed for durability under load, this RC pinion gear features a high-torque set screw to keep the gear firmly seated on the shaft during aggressive driving. If you're replacing a worn pinion or selecting a specific tooth count for a gear ratio change, the KOS03000-27 is a precision-made option built to handle the demands of competitive and recreational RC car use.

Key Features

• 32P M0.8 pitch profile matches standard M0.8 spur gears used across a wide range of electric RC cars
• 27-tooth count allows tuning of gear ratio to balance top speed against acceleration
• Hardened steel construction resists wear and deformation under sustained motor loads
• Fits 5mm motor shafts directly, with no modification required
• High-torque set screw included to secure the pinion firmly and prevent slipping under power

Compatible With

• Electric RC cars and buggies using M0.8 (32P) pitch spur gears
• Motors with a 5mm output shaft
• Vehicles running standard 32-pitch drivetrain configurations

What's Included

• 1 x Koswork KOS03000-27 27-tooth hardened steel pinion gear (5mm shaft bore)
• 1 x High-torque set screw