The NGK BR9ES Spark Plug is designed specifically for 02-07 KTM 125SX 125 SX dirt bikes, providing reliable ignition performance for dual sport and off-road motorcycles. Made with nickel material and a 19.0mm installation depth, this spark plug is a high-quality OE/OEM part manufactured in Japan. With a 14mm thread diameter and 21mm hex size, it offers easy installation and maintenance. Additionally, this product comes with a 60-day manufacturer warranty and is compatible with gasoline fuel type. Please be aware of the California Prop 65 Warning associated with this product.