Upgrade for YZ-4S: Aluminum Center Mount S4-304CMA by Yokomo  [S4-304CMA]

Yokomo S4-304CMA Aluminum Center Mount for YZ-4S
Price:
AUD$24.76
Brand:
Yokomo
Model:
S4-304CMA
GTIN:
0639342188376
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Or you may find similar product under the
Spares / Hop-ups - Yokomo - YZ-4 category
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Replacement center mount for YZ-4S

This aluminum center mount is intended as a direct replacement for YZ-4S scale RC chassis. It establishes a solid central mounting point for center-mount configurations and is useful for builders seeking a durable machined part to maintain chassis geometry between upper and lower sections.

Compatibility is specified by the supported chassis list, including B-YZ4SF variants; check the chassis code before fitting. The component is mechanical in function and connects to the platform's existing mounting points on the YZ-4S.

Installation steps: remove the original center mount following standard centre-section disassembly procedures, transfer necessary spacers or bushings, and secure the new mount using the original fasteners unless the chassis manual calls for replacements. Confirm even torque and verify drivetrain alignment after assembly.

Setup influence: this mount alters center stiffness and mass distribution in center-motor setups; make incremental adjustments to shocks and ride height while monitoring handling changes.

Specifications

  • Item Aluminum center mount
  • Material Aluminum
  • Model Number S4-304CMA
  • Compatibility YZ-4S, B-YZ4SF

Choose the S4-304CMA when you want a machined aluminum option for the YZ-4S center section to preserve alignment and support centre-mount setup adjustments.
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 mount change chassis flex and balance?

Switching to a stiffer aluminum center mount reduces center flex and shifts how weight moves through the chassis. Expect altered handling characteristics that should be tuned with small shock and ride height adjustments.

Do I need to modify other parts when fitting this mount?

In most cases no other parts require modification. Transfer any original spacers or bushings and confirm mounting interfaces align; only replace related parts if fit issues are detected.

Is any special lubrication required around the mount?

The mount itself does not need lubrication. Keep adjacent drivetrain components lightly lubricated per their own maintenance guidelines and avoid contaminating mating surfaces with grease.

How should I validate alignment after installation?

After fitting, spin the drivetrain and inspect for binding, check wheel tracking and toe measurements, and take a short test run to confirm the car behaves as expected before final track setup.

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