O.S. Engine OS21165010 Engine Heat Insulator for 10J/10M/10D Models  [OS21165010]

RC engine heat separation plate

The OS21165010 thermo insulator is a thin insulating element intended to reduce conductive heat transfer at contact zones for 10J, 10M, and 10D engine installations. It supports stable thermal conditions that can affect mixture settings and overall tuning stability without changing engine internals.

Typical applications include limiting heat flow to the chassis or adjacent mounts and improving repeatability during development runs. Remember this component supplements, but does not replace, standard cooling systems and exhaust hardware.

Installation guidance: verify fit and clearance with your specific engine and mount arrangement, keep moving parts unobstructed, and preserve exhaust and cooling airflow. Expect minor tuning differences after fitment and verify needle positions as part of setup checks.