Register

NGK LASER Iridium Spark Plugs x2 – Hyosung GT/GV 125 250 650 Models

Estimated delivery dates: Jun 11, 2026 - Jun 12, 2026
4 reviews

£29.99

🇯🇵 NGK LASER IRIDIUM | THE DEFINITIVE OEM UPGRADE

Fire up instantly. Forget overhyped “IX Iridium Blue Box” plugs. These Genuine NGK LASER Iridium Plugs are the ultimate OEM upgrade, delivering a sharper throttle response, faster cold starts, and maximum engine efficiency.

  • Faster Starts: Reliable ignition in all weather conditions.
  • 🛠️ Sharper Throttle: Experience increased responsiveness across the rev range.
  • 🔩 Longevity: Laser-welded Iridium/Platinum construction for 50k+ miles.
  • Better Economy: Maximised combustion efficiency.
💡 THE PRO’S CHOICE:
This is the OEM-approved design used by manufacturers worldwide. We sell genuine quality that lasts, not “tuning” hype. Sold as a pair (x2) for your V-Twin.
Secure Checkout via

Description

The standard “Yellow Box” spark plugs are fine for stock use, but a spirited Hyosung V-Twin deserves better. We cut through the hype and offer the proven performance upgrade: Genuine NGK Laser Iridium Platinum Plugs.

These aren’t just a gimmick; they are precision-engineered components designed for improved reliability vs the standard OEM units.  

These are NOT the same as  “IX Iridium (Yuck!)”  ,  you want a “LASER IRIDIUM” plug for longevity and serious reliability!


💎 Improved Reliability vs OEM

NGK themselves provide the specifications that make these the best choice for longevity and performance:

Laser-Welded Tip
Iridium center electrode for durability.
Platinum Ground Disc
Massively extended lifespan over standard plugs.
Anti-Seizing Plating
Trivalent metal plating for superior anti-corrosion.
Consistent OEM Approved Design
Reliable performance guaranteed.

📜 Confirmed Fitment (V-Twin Models):

A pair of these plugs fits the following models as a direct replacement for Hyosung Part Number: 09482-00456

GV125 / GT125 / R (All Years) GV250 / GT250 / R (All Years) GV650 / GT650 / R / S (All Years)

🔧 Installation Tips

  • **Engine Temp:** Ensure the engine is stone cold before removing or installing plugs to prevent thread damage to the cylinder head.
  • **The Gap:** Do not adjust the gap, NGK Japan already gaps their spark plugs, so do not modify it ,  just fit and ride!
  • **Anti-Seize:** A tiny smear of anti-seize compound on the threads prevents future seizing. The trivalent plating helps, but this is added insurance.
  • **Torque Right:** Use a torque wrench (typically 18-22 Nm). Avoid over-tightening which can crack heads.

📧 SALES ENQUIRY? Email us for product questions. 

Additional information

Weight 0.6 kg
Dimensions 10 × 10 × 2 cm

4 reviews for NGK LASER Iridium Spark Plugs x2 – Hyosung GT/GV 125 250 650 Models

  1. dufferdave

    Great plugs, much better than original ones, a must for a smooth running engine.

  2. Luke

    A great companion to the coils and caps. Highly recommended. Fast delivery to Spain. Excellent service from Marcel

  3. eman ellul

    Just upgraded to the uprated coils, the uprated regulator, the uprated stator and ngk caps with iridium spark plugs. I have to say it made an amazing difference, the bike almost no longer needs choke (less than a minute and only on first start in the morning), acceleration has improved significantly and my bike is now charging (which was my original problem :p). Very happy with all items 🙂
    Bike is a 2003 gv250 carby model

  4. MattHyo627

    Installed on RC 2018. The crem de la crem of spark plugs. Engine smooth, power on demand has improved, acceleration unbelievable and a clean start. Worth the money, combine with the NGK caps for optimum performance.

    Matt

Share Your Feedback

GARAGE PICKS // ADD TO BUILD


Independent Shop supplying ride enhancements and quality spares with fast dispatch. Need assistance? Access our workshop guides, manuals, tutorials or drop by the forums for troubleshooting help.