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

G230PUM Water Jacket O-ring Overview

This RC water jacket O-ring carries the Zenoah K116012320 part number and is sized 1.5x19.5 mm to match the G230PUM cooling jacket interface. It serves as the primary sealing ring for coolant passages on compatible G230PUM model engines.

Fit this O-ring to replace cracked, flattened, or hardened seals that lead to coolant leakage or reduced cooling performance. The product is supplied without extra packing, so confirm the K116012320 marking and the 1.5x19.5 dimension before fitting.

Installation notes:

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