Yokomo Z4-630A 18T aluminum drive pulley for YZ-4 (hard ano) [Z4-630A]

Yokomo Z4-630A 18T F/R/Center Pulley (Hard ano) for YZ-4

Price:

USD$3.70

Brand:

Yokomo

Model:

Z4-630A

GTIN:

3888

Not Available

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Description
FAQ

18T drive pulley for YZ-4

This hard-anodized aluminum 18T pulley is an RC-scale drive pulley sized for the Yokomo YZ-4 chassis. It serves as a direct replacement for standard pulleys in front, rear, or center positions where an 18-tooth pulley is required, providing a firmer contact surface than typical plastic parts.

When using this pulley on the rear belt route, it must be combined with the rear narrow belt Z4-309-6 to ensure correct belt seating and alignment. Verify belt width and track before final assembly to avoid misalignment that can affect belt life and drivetrain efficiency.

Installation notes: remove the existing pulley, inspect the shaft and any bearings for wear, mount the Z4-630A using the original hardware, and check belt tension and tracking after running the chassis briefly. The hard-anodized surface is intended to resist wear from belt contact and provide consistent engagement under normal RC use.

Remark :

Due to limited stock availability, please notice that some Yokomo items may have to order from the factory and the ready time is around 4-6 weeks. Customer purchases the item is assumed to accept the waiting time which allows us to order directly from the manufacturer if the item is out of our warehouse.

Is this pulley compatible with YZ-4 center pulley positions?

Yes, the Z4-630A is specified for front, rear, and center 18T positions on the YZ-4 where an 18-tooth pulley is used.

Do I need a specific belt when fitting this pulley at the rear?

For rear belt installation use the rear narrow belt Z4-309-6 as recommended to maintain correct belt seating and tracking.