This DENSO spark plug, part code IW31, is engineered to provide consistent and powerful sparks for efficient combustion. Its design ensures reliable starting and smooth engine operation under various driving conditions. Crafted with quality materials, the IW31 spark plug contributes to fuel efficiency and reduced emissions. It is a crucial component for maintaining your vehicle's engine health and performance. Ensure your engine receives the precise spark it needs for optimal power delivery and responsiveness with this DENSO spark plug.