Lower seal for Hi‑Tech Belt Drive Systems fits #6500, #6502, #6504 and #6506 models and provides the sealing needed at the lower drive housing to help maintain crankcase vacuum and prevent leaks. It's offered as a direct-fit service part for those specific drives. Replace the lower seal during rebuilds or when leak symptoms appear to restore intended sealing and drive reliability.
COMP Cams Lower Seal For 6500 And 6504