Prestolite DC Motor for Fenner Fluid Power, Fenner Stone applications with specifications: 12 Volt, CW, 4.5" O.D. Case. Replaces FENNER STONE 1789-AC, 1997-AC. WESTERN MOTOR W-9789. WALTCO 70391100, 70392800. MAXON 226578, 226579. Reference 10736, 160-826.