Ensure your STIHL chainsaw operates smoothly with this genuine OEM NOS rubber guide piece, designed to provide precise chain tensioning. The part number 1121-664-2800 is compatible with models including the 024 Super, 028 Super, MS 240, MS 340, as well as other models specified —B63. This is an essential component for maintaining your chainsaw's performance and longevity.Included in the pack is one chain tensioner rubber guide piece, crafted to meet the high-quality standards of GENUINE STIHL. It's a direct fit, making installation quick and easy, ensuring your saw runs efficiently without the need for adjustments. Keep your equipment running at its best with this reliable and durable guide piece.