NGK Iridium IX Racing Spark Plug is built for riders and racers who want crisp ignition, consistent combustion and dependable performance under demanding conditions. With an ultra-small fine-wire iridium center electrode, it reduces the voltage required to fire—helping your ignition system work more efficiently while improving spark stability.
This racing-oriented design helps minimize misfires and supports clean, responsive running, especially when the engine is pushed hard. In addition, the updated metal shell plating provides enhanced anti-corrosion protection for long-term durability.
Key features:
✅ Fine-wire iridium center electrode for efficient ignition and strong spark performance
✅ Lower voltage requirement to support longer ignition-system life
✅ Enhanced anti-corrosion shell plating for improved durability
Benefits of use:
🔹 More consistent ignition for stable running under race and high-load conditions
🔹 Improved efficiency thanks to reduced firing voltage demand
🔹 Reliable long-term service with corrosion-resistant construction
Technical specifications (as needed):
📌 Brand/Manufacturer: NGK Spark Plugs
📌 Model: R7376-10 (Vendor Part Number: 4457)
📌 Electrode tip material: Iridium | Center electrode: Fine Wire
📌 Type: Resistor | Electrical resistance: 5k Ohms
📌 Thread size: 14 mm | Thread reach: 19.1 mm (3/4")
📌 Spark gap: 0.6 mm (0.025")
📌 Heat range: 10 | Hex size: 20.6 mm (13/16")
📌 Ground electrode: Single, Taper Cut | Terminal: Solid
📌 Center electrode projection: Non-Projected
📌 Units: Each
Why choose this product/service?
⭐ Proven NGK racing technology focused on performance and reliability
⭐ High-quality iridium construction for stable spark and durability
⭐ Ideal for demanding riding where consistent ignition matters most
