Brake Master Cylinder Diaphragm - 45520-300-000 - Fits Honda Cb350 Cb360 Cb450 Cb500 Cb550 Cb750

Reproduction Honda Rubber Diaphragm For The Front Or Rear Master Cylinder. This Is The Diaphragm That Seals Between The Brake Reservoir Cap And The Master Cylinder Assembly. If You Notice That Your Brake Fluid Reservoir Is Leaking Fluid Onto Your Gas Tank, It Could Be The Diaphragm That Isn'T Making A Tight Seal Or The Leak Could Be Coming From The Piston. Check The Fitment List Below To See Where It Was Used On Your Model. Brake Fluid Will Ruin Painted Surfaces, It'S Best To Keep It Where It Belongs! Sold Individually. We Also Carry The Plastic Washer Used On The Master Cylinder, Sold Separately And Available On Our Site, 4Into1. Honda Part Number: 45520-300-000 Fits Honda - (Note Front Or Rear):Atc250R - 1982 - Rearcb350F Four - 1972-1974 - Frontcb360K - 1974 - Frontcb360T - 1975-1976 - Frontcb360G - 1974 - Frontcb400A Hondamatic - 1978 - Frontcb400F Super Sport - 1975-1977 - Frontcb400Tii Hawk - 1978 - Frontcb450K - 1970-1974 - Frontcb500K Four - 1971-1973 - Frontcb500T Twin - 1975-1976 - Frontcx500 - 1978 - Frontcx500Tc Turbo - 1982 - Rearft500 Ascot - 1982-1983Vf500F Interceptor - 1984-1986 - Rearcb550F Super Sport - 1975-1977 - Frontcb550K - 1974-1978 - Frontcx650T Turbo - 1983 - Rearvf700F Interceptor - 1984-1985 - Rearvfr700F Interceptor - 1986-1987 - Rearcb750A Hondamatic - 1976-1978 - Frontcb750F Super Sport - 1975-1976 - Front + Rearcb750F Super Sport - 1977-1982 - Rearcb750K - 1969-1978 - Frontvf750F Interceptor - 1983-1984 - Rearvfr750F Interceptor - 1986, 1994-1997 - Rearvfr750R - 1990 - Rearvfr800 - 2002-2009 - Rearcb900C - 1980-1982 - Rearcb900F Super Sport - 1981-1982 - Rearcb1000C - 1983 - Rearcbx - 1979-1982 - Reargl1000 Gold Wing - 1975-1979 - Reargl1000 Ltd - 1976 - Rearvf1000F Interceptor - 1984 - Rearvf1000R - 1985-1986 - Rearcb1100F Super Sport - 1983 - Reargl1100 Gold Wing - 1980-1983 - Reargl1100A Gold Wing Aspencade - 1983 - Reargl1100I Gold Wing Interstate - 1983 - Rearst1100 - 1991-2002 - Rearvf1100C - 1983-1986 - Rearvf1100S - 1984-1985 - Reargl1200 Gold Wing - 1984 - Reargl1200A Gold Wing Aspencade - 1984-1986 - Reargl1200Sei Gold Wing - 1986Vfr1200F - 2010, 2012-2014Vfr1200X - 2016 - Rearvt1300Cx - 2010-2015 - Reargl1800 Gold Wing - 2001-2005Gl18003 - 2006-2008Gl18004 - 2006, 2009, 2010, 2012, 2013-2016Gl18005 - 2006-2010, 2012-2016Gl18007 - 2006-2010, 2012-2016Gl18008 - 2006-2010, 2012-2014 And Many Others....Fits Nearly 1000 Different Honda Models... &Nbsp;