Yokomo S4-118PA Graphite Battery Plate for YZ-4S  [S4-118PA]

Graphite battery plate overview

This S4-118PA battery plate is an RC-scale graphite replacement designed for YZ-4S lineup installations. It serves as a direct battery mounting surface intended to accept standard pack formats used in the chassis, and it is specified to support the B-YZ4SF variant.

Built from a single-piece graphite panel, the plate adds torsional rigidity compared with basic plastic mounts and offers a stable platform for locating the battery. That stability helps when tuning front-to-rear and left-to-right balance without altering other components.

Installation is straightforward: remove the stock battery holder, align the graphite plate to the existing mount points on the chassis, and secure with the factory hardware. No special tools are required beyond common hex drivers and the original screws, but confirm hole alignment before tightening to avoid overload on attachment points.