Zenoah K116012320 Water Jacket O-ring 1.5x19.5 for G230PUM  [K116012320]

Water jacket O-ring for G230PUM

This is an RC-scale water jacket O-ring supplied under the Zenoah K116012320 designation, matched to the G230PUM water jacket interface. The part is identified by its 1.5x19.5 size and is intended as a direct sealing element for the cooling jacket area on compatible G230PUM RC engines.

Use this O-ring when replacing aged or damaged seals that allow coolant leakage or reduced cooling efficiency in model engines. It is sold without additional packing, so verify the part number and the 1.5x19.5 marking before fitting.

Installation notes:

• Clean the mating surfaces and remove old sealant or debris from the water jacket groove.
• Inspect the groove for nicks or corrosion that could prevent a proper seal.
• Lightly lubricate the O-ring with the engine manufacturer's recommended lubricant before seating to avoid pinching during assembly.
• Reassemble components evenly to maintain uniform compression on the O-ring and test for leaks at low rpm before full operation.