This ALTERNATOR KIT is a MUST for the 08 Polaris RZR or Ranger 700! Now your stator and your battery can keep up with your stereo and HID lights! The RZR/Ranger kit uses a 45 amp alt. driven off of the crank shaft with a cog belt and pulleys. This is a completely bolt on kit. The only cutting required is plastic parts. A total one wire system- no switches or complicated wiring involved! Recommended to use an optima battery with this kit!