Tamiya 53421 - Aluminum Pinion Gear 42T/43T OP-421 田宮遙控車備用配件 雙星孖星  [53421]

This is a Pair of Aluminum Pinion Gears for TA-04 chassis vehicles.
Here is the gear that attaches toward motor.

QUALITIES: Aluminum construction

INCLUDES:

• One 42 tooth pinion gear
• One 43 enamel pinion gear
• Three 3mm set screws
• One allen key

NEEDS: Installation onto vehicle.

SPECS:

• 43 enamel gear diameter: 18.7mm (0.74")
• Pitch: 0.4 M (48P metric)

OPINIONS: it's possible why these gears may work with other 48P vehicles.