Zenoah K369990032 Spark Plug RC Replacement for G380PU G450PU G620PU G800BPU  [K369990032]

Champion RCJ7Y spark plug for nitro models

This Zenoah K369990032 Champion RCJ7Y spark plug is a small RC-scale replacement part designed for compatibility with G380PU, G450PU, G620PU and G800BPU engines. It is supplied as the Champion RCJ7Y type and is listed as a replacement for part number 163073110, serving as a direct swap when the installed plug shows wear or inconsistent ignition.

Functionally the plug provides the ignition interface for nitro RC engines, using a conductive electrode material to transfer the spark into the combustion chamber. In model use its primary role is to maintain reliable ignition timing and to support fine tuning of idle and throttle response as part of routine engine setup and track or field maintenance.

Installation notes: confirm engine is cool before removal, clean surrounding area to avoid debris entering the cylinder, remove the old plug carefully to avoid cross-threading, inspect the plug seat and threads, check the electrode gap and general condition before fitting the replacement, thread in by hand to start and seat snugly without excessive torque, and verify ignition and idle after installation. Do not use this item in full-scale engines, it is intended only for RC model engines.