High-performance Stihl Cylinder with Piston 34 mm (3.4 cm) designed for BG 86 and SH 86 Leaf Blowers. Crafted from premium-grade materials for durability, precision fit, and efficient fuel combustion. Ensures optimal engine performance and extended tool life. Perfect for replacing worn or damaged parts, this kit delivers consistent power output, smooth operation, and reliable trimming performance for professional and domestic users.