Genuine Honda rubber diaphragm plastic washer / plate for the front and rear master cylinder. This is the plastic washer that sits between the brake reservoir cap and the rubber diaphragm. If you notice that your brake fluid reservoir is leaking fluid onto your gas tank. The diaphragm might be unable to seal properly because the plastic washer is missing.
Brake fluid will ruin painted surfaces, it's best to keep it contained! We also have the rubber diaphragm available.
Sold individually.
Outer Diameter: 48mm
Inner Diameter: 30mm
Thickness at widest point: 5mm
Honda Part Number: 45521-MJ6-006
Fits Honda:
CB350F - 1972-1974
CB360K - 1974
CB360T - 1975-1976
CB360G - 1974
CB400F Super Sport - 1975-1977
CB400TII - 1978
CB450K - 1970-1974
CB500K - 1971-1973
CB500T - 1975-1976
CB550F Super Sport - 1975-1977
CB550K - 1974-1978
CB750A Hondamatic - 1976-1978
CB750F Super Sport - 1975-1982
CB750K - 1969-1978
CB900C - 1980-1982
CB900F - 1981-1982 + 2002-2007
and many others....fits over 900 different Honda models...
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Add this to the diaphragm and master cylinder kit :)
Rebuilt my cb360 with these and stainless lines. Not spongey and actually responsive now:)
