Yokomo S4-302RA YZ-4S Precision Rear Gearbox Module  [S4-302RA]

Yokomo S4-302RA Rear Gear box for YZ-4S
Price:
£8.77
Brand:
Yokomo
Model:
S4-302RA
GTIN:
0639342210138
Condition:
Brand New
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Overview of the YZ-4S Rear Gearbox

The Yokomo S4-302RA rear gearbox is a precision replacement part for the YZ-4S family, aimed at improving gear life and consistent power delivery. It fits models such as B-YZ4SF, B-YZ4SF2-1, MOR-010, and MOR-020 and supports reliable operation during competitive running.

Designed for Consistent Performance

Careful engineering ensures the Yokomo S4-302RA rear gearbox maintains stable gear meshing under load, which helps reduce surprises during race stints and keeps handling predictable for the driver.

Compatibility and Practical Installation Tips

The S4-302RA is compatible with the specified Yokomo chassis and should install without altering core geometry. When fitting, check bearings, gear mesh and fastener torque to get the best outcome.
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 gearbox fit older YZ-4S variants?

It is intended for the YZ-4S series listed; verify chassis part numbers and mounting points on older cars before purchasing to ensure compatibility.

How often should I inspect the gearbox?

Check gears and bearings after each event or every few practice sessions, especially if running on dusty or abrasive surfaces, to spot wear early.

Can I upgrade internal gears later?

Some internal components may be serviceable or replaceable depending on parts availability; consult parts lists and fitment guides before ordering upgrades.

Does fitting this unit affect gear ratios?

No, this gearbox replaces the rear housing and does not change gear ratios on its own; ratio changes come from pinion or spur modifications.

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