AD 56024439 24V Brush Drive Motor with Gear for Nilfisk, Kent, Advance Disc Brush Scrubbers. Rugged replacement brush drive motor with 200rpm gear box assembly. For disc brush models only. Fits many Nilfisk / Advance/ Kent models including Kent KA-26BT, KA-27DS, and KA-27SS. Please check you machine model / manual before ordering. Listed as motor and gear unit. Includes hub key. Priced each. Dealer list price is $1063.00 as of 12/10. Replaces Nilfisk / Kent 56024439, 024439, 24439.