Williams 7B111 Fan Blade 30067439-890 This 10-pack of Mars resistors

This 10-pack of Mars resistors provides the necessary bulk inventory for large-scale maintenance or emergency service calls

ensuring compliance with strict building codes while providing a compact hub-mounted footprint that integrates easily into standard 1/2" NPT knockouts

also identified as the P6 Plastic Float

allowing the automatic reset furnace switch to return to a closed state once temperatures normalize

while the compact housing saves valuable space in crowded enclosures

Williams 7B111 Fan Blade 30067439-890 This 10-pack of Mars resistorsThe Williams 7B111 Fan Blade is a critical replacement component designed specifically for Forsaire Counterflow Top Vent furnaces. This 8 blade aluminum assembly is engineered for 65,000 BTU models, including the Williams 6508 series, where maintaining precise static pressure and consistent CFM is vital for heat exchanger integrity. Featuring an 11 1 4" diameter and a 1 2" bore, this CW (clockwise) rotation blade ensures the blower assembly moves air