Master Cylinder Assembly, Part 2010238 is a left hand master cylinder assembly that applies front and rear system at the same time. It is designed and tested by Polaris Engineers to ensure durability and quality through tens of thousands of miles and thousands of hours of field and lab validation testing. Trust your brake parts are high quality and built for optimal performance. We've been a leader in the powersport industry since 1954, don't settle for anything less than OEM quality. This Accessory is Designed to Fit the Following: ATV , 2014 Sportsman Big Boss 6X6 800 , 2011-2013 Sportsman Big Boss 800 6X6 , 2010, 2005-2006 Sportsman 800 EFI , 2009 Sportsman 6X6 800 EFI , 2008-2013 Trail Blazer 330 , 2007-2012, 2005 Scrambler 500 4X4 , 2006 Sportsman 500 EFI , 2006 Sportsman 450 , 2006 Scrambler 500 4x4 , 2005-2013 Trail Boss 330 , 2005-2006 Trail Blazer 250 , 2005 Magnum 330 2X4 , 2004-2008 Sportsman 6X6 , 2004-2006 Sportsman 700 EFI , 2004-2006 Sportsman 700 , 2004-2006 Sportsman 500 HO , 2004-2006 Magnum 330 4X4 , 2004-2005 Sportsman 600 , 2004-2005 Sportsman 400 , 2004 Sportsman 500 , 2004 ATP 500 4X4 , 2004 ATP 330 4X4