Features 1.Applicable Model: The rear brake master cylinder is replacement for Polaris Magnum Scrambler Sport Sportsman Trail Worker Xpedition Xplorer. Please confirm whether it is consistent with the product you want before buying to avoid unnecessary return. 2.OE Number: The part numbers for reference are 1910301, 1910311, 1910791, 1910790, 1911113, replacement part number is 1930899. Please confirm whether it is consistent with the OE you need to avoid wrong buying and other problems. 3.High Performance: The brake master cylinder assembly prevents fluid bypass for sturdy, safe, and reliable operation. Enhances stability and durability of your ATV. 4.Premium Material: The rear brake pump is made of sturdy ABS and metal materials that resist damage and ensure long term use, high strength and rust proof. 5.Convenient Fixation: The brake master cylinder pump comes with a fluid reservoir and an long hose for complete fixation of the rear brake cylinder, saving you time and effort. Specification Item Type: Rear Brake Master CylinderOE Number: 1910301, 1910311, 1910791, 1910790 1911113Replacement OE Number: 1930899Fitment:Replacement for Polaris ATV as follows:Fit for Diesel 455 1999-2001Fit for Magnum 325 2000-2002Fit for Magnum 330 2003-2006Fit for Magnum 500 1999-2003Fit for Scrambler 400 1998-2002Fit for Scrambler 500 1998-2009Fit for Sport 400 1999Fit for Sportsman 335 1999-2000Fit for Sportsman 400 2001-2005Fit for Sportsman 450 2006-2007Fit for Sportsman 500 1998-2009 Except for 6x6, X2, TouringFit for Sportsman 600 2003-2005Fit for Sportsman 700 2002-2007Fit for Sportsman 800 2005-2008Fit for Sportsman MV7 2005Fit for Trail 250 1999-2006Fit for Trail 330 2008-2009Fit for Trail 400 2003Fit for Trail 325 2000-2002Fit for Trail 330 2003-2009Fit for Worker 335 1999Fit for Worker 500 1999 2001Fit for Xpedition 325 2000-2002Fit for Xpedition 425 2000-2002Fit for Xplorer 250 2000-2002Fit for Xplorer 400 1999-2002 Package List 1 xRear Brake Master Cylinder2 x Screws3 x Gaskets Note Please double check the part number of your item, matching information is for reference only.