This Champion OEM 401 Rs12yc Auto Spark Plug is a crucial component for your lawn mower's ignition system. It is compatible with Champion brand and is designed for gas power source. The spark plug's dimensions are 1 inch in height, length, and width, making it a perfect fit for your lawn mower.

In addition, this spark plug is made with high-quality materials to ensure durability and long-lasting performance. It is also compliant with California Prop 65 Warning, ensuring that it does not pose any harm to your health. This item is a must-have for any lawn mower owner who wants to maintain their equipment's optimal performance.