Koswork 64P 40T Aluminium Thin Lightweight RC Pinion Gear - KOS03004-40

The Koswork KOS03004-40 is a 64P pitch, 40-tooth aluminium pinion gear designed for use in 1/10 and similarly scaled electric RC cars running 64-pitch drivetrain components. Machined from aluminium rather than steel, this lightweight pinion reduces rotating mass in the drivetrain, which is a meaningful consideration for competitive touring car and pan car racing where every gram counts. At 40 teeth on a 64P pitch, it sits at the higher end of the tooth count range, providing a taller gear ratio that suits higher top-speed setups when used with an appropriate spur gear.

Key Features

• 64P (64 pitch) tooth profile — must be paired with a 64P spur gear for correct mesh
• 40-tooth count for a taller gear ratio, suited to higher top-speed motor and track combinations
• Aluminium construction reduces rotating weight compared to standard steel pinion gears
• Thin, lightweight profile optimised for competitive RC racing applications
• Koswork part number KOS03004-40 for straightforward reordering and fitment verification

Compatible With

• Any 1/10 scale electric RC car or buggy using 64P pitch drivetrain gearing
• Compatible with 64P spur gears across common touring car, pan car, and buggy platforms
• Suitable for use with standard 3.175mm (1/8 inch) motor shafts — verify motor shaft diameter before ordering

What's Included

• 1x Koswork KOS03004-40 64P 40-tooth aluminium pinion gear