The Piston (0.00) for 4 Stroke 9 HP (186FA) Diesel Power Tiller / Cultivator is engineered for optimal engine performance and reliability. Precision-machined to standard bore size, it ensures a perfect fit and smooth operation in demanding agricultural environments. Made from high-strength aluminum alloy, this piston offers durability, reduced friction, and enhanced heat dissipation, making it ideal for engine maintenance and upgrades for diesel tillers and cultivators.