YZ-4SF Slipper Main Shaft S4-303MSA by Yokomo  [S4-303MSA]

Yokomo S4-303MSA Slipper Main Shaft for YZ-4S
Price:
CAD$11.80
Brand:
Yokomo
Model:
S4-303MSA
GTIN:
0639342188307
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Or you may find similar product under the
Spares / Hop-ups - Yokomo - YZ-4 category
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Replacement slipper main shaft for YZ-4SF

The S4-303MSA is a direct replacement main shaft designed for the slipper assembly on YZ-4SF vehicles. It secures the slipper components while allowing the intended slip action to reduce drivetrain stress during heavy loads.

This part is specified for chassis code B-YZ4SF, so confirm your model code matches before ordering. It is listed as a standard spare rather than an altered upgrade, intended to match the original form and fit of the YZ-4SF slipper unit.

Installation commonly requires partial disassembly of the slipper to remove the old shaft and fit the replacement, checking alignment and engagement of pads or springs as you reassemble. Use this shaft as a straight swap to restore the original slipper positioning and engagement when servicing or tuning.
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 this fit all YZ-4SF variants?

The listing targets YZ-4SF and specifies chassis code B-YZ4SF; verify your vehicle code before purchase to ensure compatibility.

Is the shaft supplied with mounting hardware?

The source description does not detail included contents, so any additional hardware should be confirmed with the seller prior to ordering.

Any tips for fitting the replacement shaft?

During reassembly, ensure correct alignment and engagement of slipper pads or springs, then test slipper operation before normal use.

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