Triumph Speed 400 Spark Plug - NGAGE Double Iridium

Factory spark plugs often lead to sluggish throttle response, carbon buildup, and frequent misfires during aggressive riding. Upgrade to engineered ignition performance to unlock smoother power delivery and optimal fuel combustion on every ride.

• Enhanced Acceleration: Delivers a more consistent, powerful spark for sharper throttle response.

• Reduced Misfires: Minimizes ignition dropouts even under high RPMs and demanding riding conditions.

• Superior Combustion: Ensures complete fuel burn for improved engine efficiency.

• Long-Lasting Durability: Double iridium construction resists wear and thermal breakdown far longer than standard plugs.

• Precision Fit: Manufactured in Japan to exact OEM specifications for direct drop-in installation.

Technical Specifications

Compatibility & Installation

• Fitment: Specifically designed for the Triumph Speed 400, Triumph Scrambler 400X, and Triumph T4.

• Installation Steps:

  1. Ensure the engine is completely cool before starting.

  2. Disconnect the rubber spark plug cap and clear any debris from the spark plug well.

  3. Use a standard spark plug socket wrench to carefully remove the factory spark plug.

  4. Gap and thread the NGAGE Double Iridium spark plug in by hand to cross-thread, then torque to factory specifications.

  5. Reattach the ignition cap securely.

What's in the Box

• 1 x NGAGE Double Iridium Spark Plug (Part No: VH8RTII-9)

• Q: What spark plug is compatible with the Triumph Speed 400 and Scrambler 400X?

  A: The NGAGE Double Iridium Spark Plug (Part No: VH8RTII-9, Made in Japan) is specifically engineered and compatible with the Triumph Speed 400, Scrambler 400X, and T4 models.

• Q: What are the performance benefits of a double iridium spark plug for motorcycles?

  A: Double iridium spark plugs offer superior ignitability, highly stable idling, significantly reduced misfires, better throttle response, and a much longer lifespan compared to standard nickel or platinum plugs.

• Q: Are NGAGE spark plugs for Triumph 400 models made in Japan?

  A: Yes, the NGAGE Double Iridium spark plugs for the Triumph Speed 400 series are manufactured in Japan.

• Q: How does upgrading to an iridium spark plug affect acceleration?

  A: It provides a stronger and more concentrated spark, resulting in cleaner combustion, crisper throttle response, and improved acceleration performance.

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