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

Aluminum center mount for YZ-4S chassis

This machined aluminum center mount is a direct replacement designed for YZ-4S scale RC chassis use. It provides a rigid central anchor for center-mount layouts and is aimed at builders who want a durable machined component to preserve alignment between upper and lower chassis sections.

Confirm compatibility using the supported chassis list, which includes B-YZ4SF models; always check your chassis code prior to fitting. The component serves a mechanical and setup role rather than any electrical function, interfacing with the existing mounting points on the YZ-4S platform.

Installation notes: remove the factory center mount by following standard center section disassembly, transfer any spacers or bushings as required, and secure the new mount with the original fasteners unless your chassis manual specifies replacements. Torque mounting screws evenly and verify drivetrain alignment after installation.

Tuning role: changing to this mount alters chassis stiffness and the center of mass behavior in a center-motor layout, so use incremental adjustments to ride height and shock settings when evaluating handling changes.

Select this machined aluminum mount when you need a sturdy replacement for the YZ-4S center section to maintain alignment and support center-mount setup tuning.