Valve Guide Seals - Viton. Fits Twin Cam 2005-2017 & Sportster 2004-2021. Good for when using larger springs & lower collar

KPMI Red 100% Viton valve stem seals are designed to have optimum fitment, allow , maximum lift, and to give maximum life. KPMI® Red valve stem seals are resistant to high temperatures, petroleum products and the corrosive gasses that are the by-products of combustion.