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1971 Honda CB750K Master Cylinder Parts

The 1971 Honda CB750K master cylinder selection includes internal rebuild parts, reservoir sealing pieces and several replacement assemblies. Identify the unit fitted to your motorcycle first, especially after a previous control change, then compare bore size, cap design and the specific contents of each option.

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Currently viewing Master Cylinder & Rebuild Parts

Honda motorcycle parts

Choose your model and year to see parts listed for your bike.

Honda CB750 CB550 CB400F front master cylinder kit 45530-377-305

Honda CB Front Master Cylinder Rebuild Kit ~ Replaces 45530-377-305

$37.95 USD
08-0215
Rebuild your early SOHC CB's front master cylinder with this Front Brake Master Cylinder Rebuild Kit, replacing OEM #45530-377-305. Made in Japan. Fits the...
Honda CB750 CB550 CB500 master cylinder rubber boot 45522-300-010

Honda CB Master Cylinder Rubber Boot ~ Replaces 45522-300-010

$9.95 USD
33-0003
Replace your master cylinder rubber boot with this Master Cylinder Rubber Boot, which attaches where the brake hose joins the master cylinder. Replaces OEM...
New
Honda CB750 CB550 CB400F front master cylinder assembly 5 8 in.

Honda CB Front Master Cylinder Assembly ~ 5/8 in.

$99.95 USD
08-0253
Drop in a factory-look master cylinder with a performance piston size using this Front Brake Master Cylinder Assembly. Black body with silver lever, custom-manufactured...
Honda CB750K rear brake light switch spring 35357-300-000

1969-76 Honda CB750K Rear Brake Light Switch Spring ~ Replaces 35357-300-000

$5.95 USD
29-7009
Replace your rear brake stop switch spring with this Rear Brake Light Stop Switch Spring, replacing OEM #35357-300-000.Key Features• Rear brake light stop switch...
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Honda CB900 CB750 CB650 front master cylinder assembly

Honda CB900 / CB750 / CB650 Front Master Cylinder Assembly

$109.95 USD
08-0457
Fit a blacked-out front master cylinder to your late-'70s or early-'80s DOHC CB with this Front Brake Master Cylinder Assembly. Usable on any single...
Honda CB750 CB550 CB400F master cylinder diaphragm 45520-300-000

Honda CB Master Cylinder Reservoir Diaphragm ~ Replaces 45520-300-000

$10.95 USD
08-0282
Replace a hardened or torn master cylinder diaphragm with this Master Cylinder Reservoir Diaphragm, replacing OEM #45520-300-000. Exceptional range of applications, fits FRONT master...
Honda CB750 CB550 CB500 CB400 CB350 master cylinder damper set

Honda CB Master Cylinder Damper Set

$6.95 USD
73-0841
Replace your master cylinder damper with this Master Cylinder Damper Set. Includes brake master cylinder rubber damper, plate, and washer. This set is often...
New
Honda CB750 CB550 CB400F front master cylinder assembly 14mm

Honda CB Front Master Cylinder Assembly ~ 14mm

$99.95 USD
08-0269
Restore strong and consistent braking performance with this Front Brake Master Cylinder Assembly, designed as a high-quality replacement for many classic Honda models. This...
Honda CB750K rear brake light switch bracket 50156-300-020

1969-76 Honda CB750K Rear Brake Light Switch Bracket ~ Replaces 50156-300-020

$13.95 USD
73-0887
Replace your rear brake stop switch bracket with this Rear Brake Light Stop Switch Bracket, replacing OEM #50156-300-020.Key Features• Rear brake light stop switch...
Honda CB1000 CB900 master cylinder reservoir cap plastic o-ring 45521-MJ6-006

Honda CB Master Cylinder Reservoir Cap Plastic O-Ring ~ Replaces 45521-MJ6-006

$4.95 USD
29-0062
Replace your master cylinder cap O-ring with this Master Cylinder Reservoir Cap Plastic O-Ring, replacing OEM #45521-MJ6-006.Key Features• Master cylinder reservoir cap O-ring• Plastic•...
Honda CB1100 CB1000 CB900 master cylinder reservoir cap 45513-341-771

Honda CB Master Cylinder Reservoir Cap ~ Replaces 45513-341-771

$39.95 USD
29-0054
Restore your master cylinder cap with this Master Cylinder Cap with Plastic O-Ring, replacing OEM #45513-341-771. This original style was discontinued long ago by...
Universal Honda-type front master cylinder assembly 13mm

Universal Honda-Type Front Master Cylinder Assembly ~ 13mm

$84.95 USD
08-0262
Upgrade to a universal front master cylinder assembly with this Honda-type unit. Complete with lever, banjo bolt, banjo bolt washers, and brake light switch,...
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Honda CB750 CB650 CB550 replacement brake lever for master cylinder

Honda CB Replacement Brake Lever for Master Cylinder 08-0262

$9.95 USD
08-0430
Replace the brake lever on the #08-0262 Master Cylinder Assembly specifically with this Brake Lever. Designed for this particular master cylinder.Key Features• Replacement brake...
Honda CB1100 CB1000 CB900 master cylinder reservoir cap 43513-MJ6-006

Honda CB Master Cylinder Reservoir Cap ~ Replaces 43513-MJ6-006

$23.45 USD
29-0080
Replace your master cylinder reservoir cap with this Master Cylinder Reservoir Cap with Diaphragm, round OEM thread-on type. Cap replaces OEM #43513-MJ6-006, diaphragm replaces...
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Honda CB750 replacement brake lever for master cylinder 08-0253

Replacement Brake Lever for Master Cylinder 08-0253

$9.95 USD
08-0029
Replace the brake lever on the #08-0253 Master Cylinder Assembly specifically with this Brake Lever. Designed for this particular master cylinder, not stock brake...
Magura universal front master cylinder assembly 13mm

Magura Universal Front Master Cylinder Assembly ~ 13mm

$259.00 USD
08-0250
Build a custom front brake setup with this Magura Universal Front Brake Master Cylinder. Features a 13mm piston diameter, 12mm stroke, and a threaded...
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1971 Honda CB750K · Master Cylinder & Rebuild Parts Buying guide

Match master-cylinder repair parts to the fitted control

Stock-type, custom and universal assemblies appear together here. Their bore sizes and replacement levers can differ. Use the actual assembly description to choose internal parts or reservoir hardware rather than assuming every item shares the original dimensions.

Parts to consider

Honda CB Front Master Cylinder Rebuild Kit ~ Replaces 45530-377-305 Early Honda front rebuild kitJapanese-made internal kit listed for the 1969–76 CB750K application.View part Honda CB Front Master Cylinder Assembly ~ 14mm 14mm replacement master cylinderBlack body with a silver lever; confirm the bore and fitted arrangement before selecting it.View part Honda CB Master Cylinder Reservoir Cap ~ Replaces 43513-MJ6-006 Round reservoir cap with diaphragmThread-on cap listing includes a diaphragm; compare its design with the reservoir.View part

Related parts: Individual reservoir diaphragm · Damper, plate and washer set · Brake-hose junction rubber boot

Compare bore size without performance assumptions

Replacement units in this category include different listed bore sizes and control arrangements. A model tag does not make those specifications identical. Check the assembly fitted to the motorcycle and the product details before changing units; do not choose by appearance or a claimed improvement alone.

Check small reservoir parts individually

Cap listings differ in their supplied seals: one includes a plastic O-ring, while another includes a diaphragm. The diaphragm and cap O-ring also have individual listings. Match the cap design and read the selected pack contents so a needed seal is neither omitted nor ordered twice.

Questions before you order

Will the rebuild kit fit any aftermarket master cylinder?

Its stated application is the listed early Honda front master cylinder. Do not assume it also fits every universal or custom assembly; compare the fitted unit and ask for help when its identity is unclear.

Do all caps come with the same seal?

No. The category includes a cap with a plastic O-ring and another cap with a diaphragm, alongside separate seals. Check the actual cap design and the contents of the listing you choose.

Can I replace just an aftermarket brake lever?

Yes, specific replacement lever listings identify the aftermarket master cylinder they serve. Match that assembly reference exactly; those levers should not be treated as replacements for every original Honda control.

Not sure which part you need?

Send your model and year, plus photos of your existing part and any changes to the original setup.

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