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1976 Honda CB750A Master Cylinders & Rebuild Parts

Identify the master cylinder already fitted to your 1976 CB750A before choosing service parts. Compare its body, reservoir and piston size with the original-type rebuild kit or fourteen-millimeter replacement assembly, especially if an earlier owner changed the handlebar controls.

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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.

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,...
Sold out
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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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...
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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 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...
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 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...
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...
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 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...
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...
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...
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 CB750A CB750K rear brake light switch spring 35357-393-000

1976-78 Honda CB750A / CB750K Rear Brake Light Switch Spring ~ Replaces 35357-393-000

$5.80 USD
73-1006
Replace your rear brake stop switch spring with this Rear Brake Light Stop Switch Spring. This is the spring that attaches to the rear...
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1976 Honda CB750A · Master Cylinders Buying guide

Identify the master cylinder before selecting a rebuild kit

The 1976 Hondamatic listing includes an original-type rebuild kit, a complete 14 mm-piston replacement and external reservoir and rubber parts. Match the chosen parts to the unit on the handlebars, particularly if the controls were changed.

Parts to consider

Honda CB Front Master Cylinder Rebuild Kit ~ Replaces 45530-377-305 Original-type rebuild kitJapanese-made rebuild kit for the 1976 CB750A original-type master cylinder, replacing Honda reference 45530-377-305. Confirm the identity of the fitted unit.View part Honda CB Front Master Cylinder Assembly ~ 14mm Fourteen-millimeter master cylinderReplacement assembly with a black body, silver lever and 14 mm piston for the 1976 Hondamatic. Verify the required piston size before choosing it.View part Honda CB Master Cylinder Reservoir Cap ~ Replaces 43513-MJ6-006 Reservoir cap with diaphragmRound thread-on reservoir cap with diaphragm, replacing Honda references 43513-MJ6-006 and 45520-300-000. Compare the reservoir and thread style.View part

Related parts: Master-cylinder damper set · Hose-junction rubber boot

Keep the replacement’s piston size distinct from the fitted unit

The replacement assembly is specified with a 14 mm piston, black body and silver lever. Confirm the required piston size and brake arrangement before ordering; that product specification does not prove the size inside an unidentified master cylinder.

Separate reservoir and external rubber parts from the internal kit

The featured thread-on cap includes a diaphragm. The separate damper set contains a rubber damper, plate and washer; the rubber boot fits the brake-hose junction. Identify which external part needs renewal instead of assuming it comes with the internal rebuild kit.

Questions before ordering

Will the 14 mm replacement suit changed brake controls?

The assembly covers the 1976 CB750A, but the required piston size and brake arrangement still need checking. Identify any replacement controls or brake components before choosing a master cylinder.

Does the selected cap include its diaphragm?

Yes. The round thread-on cap comes with a diaphragm, replacing references 43513-MJ6-006 and 45520-300-000 respectively. Compare the fitted reservoir and cap thread before ordering.

Where does the linked rubber boot fit?

It fits where the brake hose joins the master cylinder, replacing Honda reference 45522-300-010. Compare that junction and the existing boot rather than choosing a rubber part by appearance alone.

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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