The Powermaster pulley is manufactured from quality materials for strength and durability. These pulleys are deep-grooved to ensure belt retention at high rpm. Perfect for your vehicle and lifestyle, it is manufactured to meet or exceed stringent industry standards. Fire up your four-wheel passion with Powermaster Performance, the leading manufacturer of performance starters and alternators for high-performance cars, trucks and race vehicles. Powermaster builds several types of starters for most applications from 160 - 260 ft-lbs., including gas and diesel engines. Designed for horsepower extremes, theyre made to be tough and durable to handle the load placed by high-compression engines, which makes them perfect for use in todays vehicles that require a lot of juice. Powermaster Performance also manufactures a great line of performance alternators to fit any need. From 120 amp to 350 for competition use, the brand has the right alternator for your vehicle. Whether youre looking for an ultra high-torque starter or race alternator to murder that track, or an alternator upgrade for your GM, Chrysler, or Jeep vehicle, explore the brands diverse product portfolio including everything for your performance need. Get maximum cranking amps and impressive power with Powermaster Performance to enjoy winning performance on and off the track.