●Manufacturer Part # 45510-HM3-901 Replacement Part# 45510-HN1-006 ●Fitment: Fit for Honda ATV▶ TRX250EX Sportrax 2001-2008 ▶ TRX250X Sportrax 2009 2011-2020▶ TRX300EX Sportrax 2005-2008 ▶ TRX300X 2009▶ TRX400EX 1999-2008▶ TRX400X 2009 2012-2014 ●Feature:▶ Piston Bore: 9/16(14.3mm) ▶ Mirror Hole: M10×1.25 Right Hand Thread ▶ Banjo Bolt: M10×1.25 ▶ Fit 7/8 handlebar ●Material: This is high quality repalcement brake master cylinder for Honda ATV. Advanced materials, precision manufacture to make the brake master cylinder get sufficient pressure and longer life. ●Service:If there is any product problem within 1 year, please contact us to solve it for you.We provide product service.