The Hobart 00-856621-00001 Timer Kit Shaft Seal Knob Seal helps protect timer components by creating a reliable seal that reduces the entry of moisture, grease, and debris. Designed as a replacement sealing kit, it fits around the timer shaft and knob area to support smooth timer operation while helping safeguard internal mechanisms from contamination. https://partsfe.ca/00-856621-00001-vulcan-hart-timer-kit-wknobseal