Description
The stock spark plugs do the job, but if you want to unlock the full potential of your GV300S engine, this is the definitive upgrade. The NGK Laser Iridium range is designed for longevity and consistent spark delivery, using platinum-tipped ground electrodes and a tiny iridium center tip for maximum efficiency. This results in sharper response, better fuel economy, and peace of mind that your ignition system is running optimally.
💎 Technical Advantage: Laser vs. IX vs Stock OEM
These plugs are engineered differently from the cheaper alternatives, built to OEM manufacturer standards for reliability and performance.
| Laser Welded Iridium Superior durability & spark. |
Platinum Ground Tip Stable, long-lasting performance. |
| Improved Cold Starts Cleaner ignition at startup. |
Snappier Throttle Better engine response. |
📜 Confirmed Fitment Guide
📅 YEARS: 2020+ onwards (Fuel-Injected V-Twin).
OEM Part Number: 09482-00456
The stock Chinese-made spark plug caps are often the cause of ignition issues, especially in the rain. Upgrade your entire system for reliability with our NGK Racing HT Leads & Caps.
🔧 Install Tips
- DO NOT GAP: These come pre-gapped by NGK Japan for the GV300S (approx 0.8-0.9mm). Adjusting the gap can damage the delicate iridium tip. Install them as they arrive.
- Torque Carefully: Use a torque wrench. Overtightening can strip threads or crack the ceramic body. Install when the engine is cold.
- Inspect the Old Plugs: Your old plugs are a window into your engine health. Check their colour (too white = lean, oily = burning oil) to diagnose deeper issues.
📧 FITMENT QUESTIONS? Email us for sales support. For community help and DIY service guides, visit the [HyoRiders Forums].
















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