YZ-4 Compatible 18T Pulley Flange (Center/Rear) - Yokomo Z4-630CR  [Z4-630CR]

Yokomo Z4-630CR 18T Center/Rear Pulley/Flange for YZ-4
Price:
NZD$7.21
Brand:
Yokomo
Model:
Z4-630CR
GTIN:
3888
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Drive Pulley Detail for YZ-4

This standard drive pulley is made to fit the 4WD YZ-4 off-road chassis. It functions as the pulley flange in both centre and rear drivetrain locations, maintaining alignment of the belt or gear interface and providing a direct replacement for worn pieces during service.

The component features an 18T tooth profile and the same part works for centre and rear applications; flange thickness is the distinguishing factor, with a thinner flange suited to centre installation and a thicker flange for rear use. Choose the thinner flange where component clearance is limited, and the thicker flange where additional lateral support is beneficial.

Installation guidance: check flange orientation by thickness prior to assembly, ensure correct seating on the shaft or hub, and measure runout after installation. Swapping flange thickness is a practical tuning measure to address small lateral belt alignment or mesh discrepancies without altering broader drivetrain geometry.

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.

Will the 18T profile fit all YZ-4 drive locations?

Yes, the 18T profile is compatible with the YZ-4 drive system; the same pulley suits centre and rear once you apply the correct flange thickness for each spot.

Can changing flange thickness fix belt tracking issues?

Adjusting flange thickness can correct minor lateral misalignment or tracking without needing to alter pulleys or other drivetrain geometry, making it a useful tuning option.

What should I inspect to avoid premature wear?

Confirm the flange is oriented correctly, seated square on the shaft or hub, and check for runout after fitting; poor seating or misalignment accelerates wear.

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