Eureka Sanitaire 12" Base Assembly for SC663 / S677 125.81615910 Signs of failure include grinding

Signs of failure include grinding noises

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Eureka Sanitaire 12" Base Assembly for SC663 / S677 125.81615910 Signs of failure include grindingThis 12 inch base assembly (Part #55726 25) is the lower nozzle housing for Eureka Sanitaire SC663 and S677 commercial upright vacuum cleaners. The base holds the brush roll, forms the floor contact nozzle, and creates the seal that channels suction across the full 12 inch cleaning width. On a commercial machine the base wears fast, taking impacts against baseboards, furniture legs, and floor transitions until the housing cracks or the nozzle lip