MX/XC IGNITION COIL

Anyone who has raced XC (Cross Country) knows the "ghost in the machine." You’re flying through a creek or a swampy section, and suddenly your TRX400EX starts coughing, stuttering, and eventually dies. You've greased every connector and shrink-wrapped every wire, but the mud still wins.

This hybrid ignition coil is the result of years of trial, error, and "Did Not Finishes," engineered specifically to kill that grounding issue for good.

The "Triple-Threat" XC Hybrid Ignition Coil

A Global Alliance Against Moisture

This isn't just a generic replacement part; it’s a precision-built assembly using the best materials from the three powerhouses of powersports engineering. By combining these specific regional components, we’ve eliminated the micro-arcing that occurs when the coil body gets coated in conductive wet clay.

The Build Breakdown

Component	Origin	Why It Matters
Coil Body	Taiwan	High-density polymer housing designed to resist heat-warping and micro-fractures that typically allow voltage to leak to the frame.
Copper Core Wire	USA	Features a significantly thicker gauge copper core for higher conductivity and lower resistance, wrapped in a heavy-duty silicone jacket that stays flexible in freezing temps.
Ignition Cap	Japan	The gold standard in sealing technology. This cap features internal rubber ribs that create a vacuum-like seal on the spark plug, ensuring water stays out even when submerged.

The "Final Solution" to XC Stutter

Most riders assume the "leak" is happening at the CDI or the stator. In reality, under high-load XC racing, the standard coil's thin insulation breaks down when wet. The spark takes the path of least resistance—jumping from the wire or the body directly to your frame or motor.

This coil fixes that by:

• Over-Insulated Secondary Lead: The USA-made wire is thick enough to prevent "bleed-off" even when caked in 2 inches of wet mud.
• Precision Sealing: The Japanese-engineered cap prevents the common "splash-out" where water enters the spark plug hole and kills the spark.
• Superior Dielectric Strength: The Taiwanese coil body is poured with a specific epoxy resin that prevents internal grounding, a common failure point in cheap aftermarket units.

"We spent years waterproofing every single electrical connector & component on the 400EX only to realize the coil itself was the weak link."

USE DROP DOWN TO SELECT YOUR CHOICE OF WIRE COLOR OF RED OR YELLOW.

VIDEO SHOWS A TRX400EX WITH THIS COIL ON A STOCK 12V SYSTEM.