Shop MasterDrive 3L200 and trust MRO to be your reliable MasterDrive supplier to experience the difference that quality and expertise can make. Trusted since 1898. Fast, Free Shipping. 3L200 FHP V-belts are designed for light duty; fractional horsepower drives capable of handling drives with backside idler. The external wrapping provides a smooth and quiet operation with minimum vibration. They are heat and oil resistant, static conductive. These belts are used on applications ranging from light duty power transmission to heavy duty machines like printing machines, machine tools and crusher.