Upper Drive Gear 9000/9100/9500 Fleck Econominder Valves. Fleck part # 15133.This gear has only one "gap" in the gear teeth, as opposed to the lower gear, which has two "gaps".
Discontinued by Manufacturer as of Sept 2024
Once the gears are no longer available, the next option will be replacing the entire Power Head that includes the drive gears.
