This is a brand new never installed alternator and new belts that I never installed on my BMW.  I have since sold the BMW and no longer need these.  It does come with the manufacturers warranty as well. 

Premier Gear PG-13815 Professional Grade New Alternator

Automotive engines are smaller and more powerful than ever before. Under hood temperatures have increased over 50 percent in late model vehicles and optional equipment places increased demand on charging systems. These changes require a new generation of replacement alternators. Premier Gear Alternators are designed to exceed the performance of the original alternator in your vehicle or any remanufactured alternator sold as a replacement.

• Provides protection from excessive charging or failure due to shorts in your car's wiring that can cause spikes or open circuits
• Consistent performance from manufacturing processes that exceed your vehicle's original specifications for wiring, bearings and components helping to resist heat and moisture
• Longer life of the alternator through the use of premium brushes and other critical components that resist failure or poor performance
• Bosch, Internally Regulated/LC
• 150 Amp/12 Volt, Clockwise Rotation, 7-Groove Pulley

Premier Gear replacement alternators are designed and manufactured to meet or exceed the standards of the original equipment unit we are replacing. Premier Gear alternators are completely new manufactured, using high-quality, tested and inspected components. Nothing is remanufactured or previously used. With hundreds of applications available, there is most likely a Premier Gear alternator available to fit your car, truck or SUV.