Zenoah K116012210 Water Jacket Upgrade for G230PUM Engine  [K116012210]

Upgrade water jacket for RC engines

The K116012210 water cooling jacket is an RC-scale add-on designed for G230PUM engines to manage external engine temperature during bench tuning and on-track sessions. The jacket fits over the engine housing to create a controlled coolant path and integrates with standard hobby cooling fittings without changing the core mounting layout.

Fitting is aimed at hobbyists comfortable with basic engine work: slide the jacket into place around the engine, line up the ports with the factory openings, and secure with the existing mount points or included fasteners if supplied. Route hoses to avoid contact with moving parts and secure clamps to eliminate leaks.

In tuning scenarios the jacket supports steadier temperatures, which aids repeatable carburettor and ignition tweaks across multiple runs. Treat it as an add-on cooling device and ensure correct coolant circulation and monitoring for the best tuning outcome.