Upgrade for YZ-4: 18T Center/Rear Pulley Flange - Yokomo Z4-630CR  [Z4-630CR]

Yokomo Z4-630CR 18T Center/Rear Pulley/Flange for YZ-4
Price:
AUD$6.20
Brand:
Yokomo
Model:
Z4-630CR
GTIN:
3888
Please kindly input your name and email address, we will inform you once we have the restocking.
Or you may find similar product under the
Spares / Hop-ups - Yokomo - YZ-4 category
Write a review

Center/Rear Pulley for the YZ-4 Chassis

This item is a standard drive pulley intended for the 4WD YZ-4 off-road chassis. It serves as the centre and rear pulley flange, ensuring the belt or gear interface stays aligned and allowing worn parts to be replaced during scheduled maintenance.

The pulley has an 18T tooth profile and the identical basic part is used for both centre and rear mounting; flange thickness is the variable, with a thinner flange designated for centre mounting and a thicker flange for the rear. Fit the thinner flange where space is limited and the thicker flange where extra lateral support is needed.

Fitting notes: verify flange thickness to confirm correct orientation, ensure the pulley seats correctly on the shaft or hub, and inspect runout once installed. For tuning, swapping flange thickness can remedy small lateral belt alignment or mesh concerns without changing other drivetrain components.

Supported Chassis B-YZ4.
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.

Does one pulley fit both centre and rear on the YZ-4?

Yes. The unit is made to work in both positions; choose the flange thickness appropriate to the location for correct fit and function.

How should I handle seating and runout checks?

After installation, confirm the pulley sits flush on the shaft or hub and rotate the assembly to check runout. Any noticeable wobble indicates improper seating or a damaged part.

Will changing flange thickness affect drivetrain balance?

Minor adjustments to flange thickness can improve lateral alignment without significant impact on overall drivetrain geometry, but large changes should be evaluated carefully.

Copyright © 2008-2026 rcjaz.com.au All rights reserved