G380PU G450PU G620PU G800BPU Compatible Spark Plug K369990032 - Zenoah  [K369990032]

Champion RCJ7Y replacement for Zenoah nitro units

This Zenoah K369990032 Champion RCJ7Y spark plug is a compact replacement designed to fit G380PU, G450PU, G620PU and G800BPU engine types. Supplied as the Champion RCJ7Y variant and cross-referenced to part number 163073110, it swaps in when the existing plug shows wear or irregular ignition.

Functionally the plug provides the ignition interface for nitro RC engines, using a nickel alloy electrode to transmit the spark into the combustion chamber. In model use it is intended to preserve reliable ignition timing and to assist fine tuning of idle and throttle response during routine engine setup and maintenance.

Installation notes: ensure the engine is cool before removal, clean the area to prevent debris entering the cylinder, remove the old plug carefully to avoid cross-threading, inspect the plug seat and threads, check the electrode gap and condition before installing the replacement, start threading by hand and seat snugly without over-torquing, then verify ignition and idle after fitting. This item is intended only for RC model engines, not full-scale engines.