Mosfet Voltage Regulator Rectifier For Polaris Ranger 500/700 RZR 800 Sportsman 500/700 / 800 2007 2008 2009 2010 OEM Repl.# 4011925 4012384 4011569 Brand new mosfet voltage regulator rectifier direct replacement Improved heat sink and charging capabilites Higher grade of electric components All shipped products are tested One year limited warranty