Fits '99-later Twin Cam-equipped models and '00-later XL and XR models. Screamin' Eagle Tappets feature large high capacity needles in the roller bearing assembly to improve reliability when operating with high lift cams, high pressure valve springs and in high RPM applications. The 25% larger needle bearings increase the dynamic load rating by approximately 20% when compared to the Original Equipment Twin Cam tappets. The unique design delivers superior tappet life in performance applications. Set of 4.