The Yokomo Z4-630M is the designated main drive pulley and integrated slipper plate for YZ-4 4WD vehicles. The part pairs an aluminium pulley body with a built-in slipper to centralise the drivetrain interface on the chassis.
This item is intended for RC YZ-4 models only and targets transmission roles rather than suspension or motor alterations. The hard anodized coating improves surface durability without changing fitment to compatible drivetrain components.
Fitment notes: ensure the pulley alignment matches your spur and pinion, set the slipper action to suit your driving conditions, and check bearings and securing hardware on the vehicle before use.
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