Grinder Parts › Electric Motor (DC-M754C) Electric Motor (DC-M754C) CA$394.50 Replacement electric motor.3/4 HP, 1750 RPM, TEFC, Nema 56, 110/230V AC, 5/8" Output Shaft. Get notified by email when this product is in stock. Quantity: Add To Cart Added! Replacement electric motor.3/4 HP, 1750 RPM, TEFC, Nema 56, 110/230V AC, 5/8" Output Shaft.