Replica Kawasaki - Complete Brake Master Cylinder - Use On Honda Too! 14mm

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This is a reproduction of the Kawasaki brake master cylinder found on the Z1, KZ900 and other bikes. It's a complete master cylinder and lever assembly. You can also use it one any of the 70's Hondas with single disc front brakes. Just flush your hoses, bolt it on, connect the brake hose, add fluid, bleed and then stop like you mean it. At this price it's practically cheaper to replace the whole thing rather than fixing parts of the original. It really looks nice having a new one of these on your bike. It obviously looks a little different from the original Honda master cylinders but as you can see in the photos, it still looks really nice! You can use this for just about any vintage bike application.

Note: The lever and pivot bolt don't come installed, apply some grease to the pivot bolt sleeve and the end of the piston on the master cylinder, then install the lever.

For those of you who have rebuilt a master cylinder that's seized up after sitting for 30 years, we don't have to tell you how much time you'll save buying a new master cylinder!

This does not come with instructions, so please be informed about how to install a new master cylinder, or have a professional do it.

For use with M10 x 1.25 banjo bolt. Standard size for most all Honda, Yamaha, Kawasaki and Suzuki's. We carry a variety of brake fittings and banjo bolts.

This master cylinder does not have a hydraulic brake switch built in but we have one available here.

14mm piston bore size. Here's a helpful article about front master cylinder ratios. We also carry a version of this master cylinder with a 15.8mm piston.

The mirror mount threading fits standard 10MM mirrors.

Equivalent to Kawasaki OEM part number: 43015-032

Can be used in place of Honda OEM part numbers: 45500-341-771, 45500-369-671

Can be used on Honda:

CB350F - 1972-1974
CB350G - 1973
CB360T - 1975-1976
CB360G - 1974
CB400F Super Sport - 1975-1977
CB450K - 1970-1974
CB500K - 1971-1973
CB500T Twin DOHC - 1975-1976
CB550F Super Sport - 1975-1976
CB550K - 1974-1978
CB650 - 1979-1982
CB650C Custom - 1980-1981
CB650SC Nighthawk - 1982
CB750A Hondamatic - 1976-1978
CB750C Custom - 1980-1982
CB750F Super Sport - 1975-1978
CB750K - 1969-1982

and many others....use it on any single or dual disc brake set up on just about any bike.

Fits Kawasaki:

KH400 A3-A5
KZ400 A1/A2/D/D3/D4
H1 500/B/D/E/F
KH500 A8 
H2 750 A/B/C
KZ900 A4/A5
Z1 900

and others . . .

19 Reviews Hide Reviews Show Reviews

  • 5
    nice item

    Posted by Alex Trapp on 21st Aug 2023

    purchased the black ergonomic lever to go with this. Perfect fit. Very slick item.

  • 4
    Replacement Master Cylinder for Honda cb550k

    Posted by Joseph Edone on 4th Feb 2021

    This master cylinder worked well as a replacement for the old part on the 1978 Honda CB550k. It works well and is a great item for the cost.

  • 5
    Perfect for single disc brakes

    Posted by John Evoy on 12th Oct 2020

    This 14mm size worked perfectly on my single disc brake CB750. I had tried a 5/8" one previously which had no modulation because those larger ones are suited for double disc brakes.

  • 5

    Posted by Unknown on 8th Aug 2020

    Looks and works great on my 1976 cb360t. Looks very close to the original stock lock. Front brakes are working now.

  • 5
    1977 CB550K

    Posted by Unknown on 20th Nov 2019

    Nice looking, it worked great, primed in no time.

  • 5
    Good quality

    Posted by Elaine on 4th Oct 2019

    Fits my K2 CB750. Nice quality, and the braking feel is quite nice. I prefer the rounded tank to the rectangle :)

  • 5
    '74 CB750 - Awesome Replacement

    Posted by Jon W. Whitley on 10th Nov 2018

    I bought my '74 CB750 as a basket case and it had no front brakes as everything except the disc had been stripped from it. Fast forward and I was in the middle of rebuilding a frozen up Honda M/C, when I spotted this replacement M/C. I had acquired and rebuilt a front caliper and had everything I needed but a working M/C. Anyway, I ordered one of these pronto and super glad I did. I now have a functioning front brake and I am very happy with this M/C unit. Straight up plug and play affair and at a very good price. Highly recommended !

  • 5
    78 CB550

    Posted by JEREMY BAKER on 4th Sep 2018

    Works great on my 78 CB550.

  • 3
    14 vs 15.8mm

    Posted by Steve Clark on 31st Mar 2018

    Not a review but a comment, Honda's GL500 single disc brake used a 15.8mm master cylinder while the duel disc GL500I used a 14mm one.I didn't try either one yet but had to give a rating so went with average.