Reproduction Brake Master Cylinder Rebuild Kit - 45530-377-305 - CB360 CB400F CB450 CB500T CB550 CB750

$19.95
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Reproduction front brake master cylinder rebuild kit for many of the Honda 4 cylinder bikes from the 70s as well as the 350/360/500 twins. This kit is better than other aftermarket kits because it comes with the seal already installed on the piston! If you've struggled getting that seal in place without doing any damage to it, you'll feel a sigh of relief. Comes with everything shown in the photo. as well as grease.

Replaces Honda part number: 45530-377-305

Note: Many of the models below changed master cylinders in 1977, we carry a different kit for those models here.

Fits Honda:

CB350F - 1972-1974 - Front
CB350G - 1973 - Front
CB360 - 1974 - Front
CB360G - 1974 - Front
CB360T - 1975-1976 - Front
CB400F Super Sport - 1975-1977 - Front
CB450K - 1970-1974 - Front
CB500T Twin DOHC - 1975-1976 - Front
CB500K - 1971-1973 - Front
CB550F Super Sport - 1975-1976 - Front
CB550K - 1974-1976 - Front
CB750A Automatic - 1976 - Front
CB750F Super Sport - 1975-1976 - Front
CB750K - 1969-1976 - Front

11 Reviews Hide Reviews Show Reviews

  • 5
    Doing it's job

    Posted by Craig on 19th May 2024

    Good parts..no leaks..works great.

  • 5
    Worked perfect to restore a 49 year old seized master cylinder.

    Posted by K. Haines on 15th Dec 2023

    Great price to keep the original master cylinder working on my restoration project.

  • 5
    Rebuild kit worked great

    Posted by Allen on 14th Oct 2023

    The rebuild kit worked fine, just as expected.

  • 5
    Good kit.

    Posted by Jake on 20th May 2023

    It worked! Master cylinder looks old but feels great!

  • 4
    rebuild, or new?

    Posted by Motoman on 27th Apr 2023

    Bought this to rebuild my stock (cb360) master cylendar - Beter than avegrage qualty and worked well.

  • 5
    Great rebuild kit

    Posted by Dustin P on 12th Nov 2022

    Brought a crusty old cb450 master back to life with this kit. Gave her a quick hone before installing and all is working well so far.

  • 5
    Really good

    Posted by Greg Wilson on 9th Jul 2021

    Just installed this rebuild kit and was surprised at how good the quality was for a reproduction. Liked that the seal came installed on the piston. The piston was also good quality metal (maybe stainless steel?). Came with a tiny tub of silicon grease too! Very happy.

  • 5
    Excellent rebuild kit

    Posted by Unknown on 13th Sep 2019

    Changed out the old parts on my 1971 Honda CB450K4 and everything works great. Good quality reproduction.

  • 5
    Good kit for the money

    Posted by Unknown on 11th Mar 2019

    Came with everything needed, had to end up reusing spring from original build though. Other than that just what I needed and cheaper than every where else. Fast shipping as always.