Description This genuine replacement spark plug boot (SKU: ST0589) is designed for Stihl outdoor power equipment, featuring an integrated spring for a secure connection. Manufactured to OEM specification STIHL 1128 405 1000, it ensures reliable ignition performance and long-lasting durability. The boot provides a tight seal against dirt and moisture, making it an ideal direct replacement for worn or damaged components. Upgrade your equipment with this high-quality boot to maintain consistent engine starts and smooth operation. Features Includes built-in spring for positive electrical contact and easy installation. Constructed from durable, heat-resistant rubber to withstand harsh engine conditions. Precision-moulded to match original Stihl fitment for hassle-free replacement. Specifications SKU ST0589 OEM STIHL 1128 405 1000 Type Spark Plug Boot with Spring Fits Stihl MS 170 Chainsaw Stihl MS 250 Chainsaw Stihl FS 55 Trimmer Product Line Ignition Components – high-quality replacement parts for Stihl outdoor power equipment, ensuring reliable spark delivery and engine performance.