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Custom & Universal Master Cylinders & Parts

Find a rear brake master cylinder assembly and service parts including banjo bolts, sealing washers and replacement sight glasses. Brake components require accurate measurements, so compare piston size, thread pitch and sight glass diameter with your application.

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Universal rear master cylinder assembly 13mm

Universal Rear Master Cylinder Assembly ~ 13mm

$79.95
08-0263
Custom & Universal Master Cylinders & Parts Custom & Universal Motorcycle Brake & Clutch Parts Custom & Universal Motorcycle Parts Honda CB Brake & Clutch Parts Honda CB Brake Master Cylinders & Rebuild Kits
Build a custom or race-spec rear brake setup with this Universal Rear Brake Master Cylinder. 13mm bore with an alloy body, remote fluid reservoir...
10mm banjo bolt washers pack 10

10mm Banjo Bolt Washers ~ Pack/10

$8.19
08-0258
Custom & Universal Hardware & Fasteners Custom & Universal Master Cylinders & Parts Custom & Universal Motorcycle Brake & Clutch Parts Custom & Universal Motorcycle Parts Honda CB Brake & Clutch Parts Honda CB Brake Master Cylinders & Rebuild Kits
Keep fresh sealing washers on hand with this 10-pack of Banjo Bolt Washers, 10mm. Fits all brake hoses and 10mm banjo bolts, a critical...
New
Standard double banjo bolt M10 x 1.25

Standard Double Banjo Bolt ~ M10 x 1.25

$9.95
08-0293
Custom & Universal Hardware & Fasteners Custom & Universal Master Cylinders & Parts Custom & Universal Motorcycle Brake & Clutch Parts Custom & Universal Motorcycle Parts Honda CB Brake & Clutch Parts Honda CB Brake Master Cylinders & Rebuild Kits New Items
Stainless steel double banjo bolt for your CB750's brake system, designed for applications where two brake lines need to be stacked at a single...
New
Sold out
18mm master cylinder sight glass with o-ring

18mm Master Cylinder Sight Glass with O-Ring

$7.15
08-0305
Custom & Universal Master Cylinders & Parts Custom & Universal Motorcycle Brake & Clutch Parts Custom & Universal Motorcycle Parts Honda CB Brake & Clutch Parts Honda CB Brake Master Cylinders & Rebuild Kits New Items
Replacement sight glass for keeping an eye on your CB750's brake master cylinder fluid level without cracking the reservoir open. A small but important...
New
Magura double banjo bolt M10 x 1.0

Magura Double Banjo Bolt ~ M10 x 1.0

$9.50
08-0292
Custom & Universal Hardware & Fasteners Custom & Universal Master Cylinders & Parts Custom & Universal Motorcycle Brake & Clutch Parts Custom & Universal Motorcycle Parts Honda CB Brake & Clutch Parts Honda CB Brake Master Cylinders & Rebuild Kits New Items
Stainless steel double banjo bolt for CB750 builds running Magura master cylinders, designed for applications where two brake lines need to be stacked at...
New
Sold out
14mm master cylinder sight glass with o-ring

14mm Master Cylinder Sight Glass with O-Ring

$7.15
08-0304
Custom & Universal Master Cylinders & Parts Custom & Universal Motorcycle Brake & Clutch Parts Custom & Universal Motorcycle Parts Honda CB Brake & Clutch Parts Honda CB Brake Master Cylinders & Rebuild Kits New Items
Replacement sight glass for keeping an eye on your CB750's brake master cylinder fluid level without cracking the reservoir open. If the original is...
New
12mm master cylinder sight glass with o-ring

12mm Master Cylinder Sight Glass with O-Ring

$7.15
08-0303
Custom & Universal Master Cylinders & Parts Custom & Universal Motorcycle Brake & Clutch Parts Custom & Universal Motorcycle Parts Honda CB Brake & Clutch Parts Honda CB Brake Master Cylinders & Rebuild Kits New Items
Replacement sight glass for keeping an eye on your CB750's brake master cylinder fluid level without cracking the reservoir open. If the original is...
Magura master cylinder banjo bolt M10 x 1.0

Magura Master Cylinder Banjo Bolt ~ M10 x 1.0

$3.50
08-0254
Custom & Universal Hardware & Fasteners Custom & Universal Master Cylinders & Parts Custom & Universal Motorcycle Brake & Clutch Parts Custom & Universal Motorcycle Parts Honda CB Brake & Clutch Parts Honda CB Brake Master Cylinders & Rebuild Kits
Connect your Magura master cylinder with this Banjo Bolt, M10 x 1.0 thread size, designed specifically for Magura master cylinders. A dedicated fastener, do...
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Rear Master Cylinders and Hydraulic Brake Hardware

This focused selection includes a universal rear master cylinder assembly, banjo bolts, sealing washers and replacement sight glasses. It is intended for builds and service work where dimensions can be checked against the existing hydraulic system.

Confirm piston bore, mounting spacing, banjo thread pitch and sealing washer diameter. For sight glass replacement, measure the opening and inspect the master cylinder body before choosing a size.

Browse the broader custom brake and clutch category for levers, cable adjusters and brake service tools. Hydraulic brake work should be followed by a leak inspection and thorough bleeding.

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Model Guides

To better help you located the correct parts for your Honda CB motorcycle, we've put together handy model guides.

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