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Stock Ignition Coil (Non-Rev Limiting) for Honda GX390 & Big Block Clones
188F-18100 GX390/420 Clone Ignition Coil Assy.
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Stock Ignition Coil (Non-Rev Limiting) for Honda GX390 & Big Block Clones

Part Number: 188F-18100-A
Online Price: $18.72
Non-Rev Limiting Ignition Coil – Fits GX390, Predator 420 & Clone Engines
Availability: In Stock.

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Description

Stock-Style Ignition Coil (Non-Rev Limiting) – Honda GX390 / Predator 420 / Big Block Clones


This OEM-style ignition coil is a direct replacement for most Honda GX390, Predator 420, Wildcat 460, and other GX390-style Big Block Clone engines. It’s a non-rev limiting coil, ideal for both stock and lightly modified setups where full RPM potential is desired.


The ignition coil works by capturing the magnetic energy generated as the flywheel magnet passes by. This energy is transformed into a high-voltage pulse and delivered to the spark plug, igniting the fuel-air mixture in the combustion chamber.


Key Features:

  • Non-rev limiting: Allows full engine RPM range (great for builds that need more power)
  • OEM fitment: Compatible with stock ignition systems on GX390-style engines
  • Reliable spark delivery for efficient combustion
  • Works with pull-start and electric-start engines


Coil Gap Settings:

  • Stock Cast Flywheels: Set air gap between .012"–.018"
  • Billet Aluminum Flywheels: Set air gap between .030"–.055"
    (Always verify manufacturer specs for best results.)


Fits These Engines:

  • Honda GX390
  • Predator 420 (Hemi & Non-Hemi)
  • Wildcat 460
  • Other big block clones based on the GX390 architecture

FAQ

Q1: What engines is this ignition coil compatible with?
A: It fits most Honda GX390-style Big Block Clone engines, including the Predator 420, Wildcat 460, and other horizontal shaft engines based on the GX390 platform.


Q2: What does “non-rev limiting” mean?
A: A non-rev limiting coil does not restrict the engine's RPMs. This allows the engine to operate beyond stock limits—ideal for performance applications that require higher RPM.


Q3: What is the correct ignition coil air gap?
A:

  • For stock cast flywheels, set the coil gap to .012"–.018"
  • For aftermarket billet flywheels, use a gap of .030"–.055"
    (Always confirm with the flywheel manufacturer's recommendation.)


Q4: Can this coil be used for performance or racing builds?
A: Yes, this coil is commonly used in mild to moderate performance builds, especially when using a billet flywheel and advanced timing setups.


Q5: Does this coil come with mounting bolts or hardware?
A: No. This listing is for the ignition coil only. Mounting bolts and coil brackets (if needed for billet flywheels) are sold separately.

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