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1980 Honda CB750C Master Cylinder Parts

The 1980 CB750C selection includes original-style master-cylinder service parts and a separate replacement assembly. Before ordering, identify whether the bike retains its original control. Reservoir shape, cover screws, lever fit and brake-light wiring matter more than a broad model-family title.

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Currently viewing Master Cylinder & Rebuild Parts

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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 CB900 CB750 CB650 CB400 master cylinder reservoir rebuild kit

Honda CB900 / CB750 / CB650 / CB400 Master Cylinder Reservoir Rebuild Kit

$74.95 USD
29-0050
Rebuild your master cylinder reservoir with this Front Master Cylinder Reservoir Rebuild Kit, 4-screw cover type. Includes plastic reservoir, reservoir cap, diaphragm, O-ring, and...
Honda CB750 CB900 CB650 master cylinder diaphragm 45520-422-026

Honda CB Front Master Cylinder Reservoir Diaphragm ~ Replaces 45520-422-026

$11.50 USD
08-0285
Replace the diaphragm on your early DOHC CB's front master cylinder reservoir with this Front Master Cylinder Reservoir Diaphragm, replacing OEM #45520-422-026 / #45520-422-006...
Honda CB750 CB650 CB400T front master cylinder kit 45530-442-315

Honda CB Front Master Cylinder Rebuild Kit ~ Replaces 45530-442-315

$49.95 USD
08-0231
Rebuild your early DOHC CB's front master cylinder with this Front Master Cylinder Rebuild Kit, replacing OEM #45530-442-315. Fits the 1979-80 DOHC CB750K/L/C, CB650/CB650C,...
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Honda CB750C CB750K rear brake light switch spring 35357-ME1-670

1979-83 Honda CB750 Rear Brake Light Switch Spring ~ Replaces 35357-ME1-670

$8.19 $7.87 USD
You save $0.32
73-0850
Replace your rear brake stop switch spring with this Rear Brake Light Stop Switch Spring. This is the spring that attaches to the rear...
Honda CB650 CB750 CB900 replacement brake lever for master cylinder 08-0457

Replacement Brake Lever for Master Cylinder 08-0457

$9.95 USD
08-0018
Replace the brake lever specifically on the #08-0457 Master Cylinder (sold separately) with this Brake Lever.Important: this lever is ONLY for Master Cylinder #08-0457,...
Magura universal front master cylinder assembly 16mm

Magura Universal Front Master Cylinder Assembly ~ 16mm

$259.00 USD
08-0251
Step up to dual-disk compatibility with this Magura Universal Front Brake Master Cylinder, featuring a 16mm piston diameter recommended for dual-disk brake systems. Threaded...
Honda CB900 CB750 CB650 CB400 chrome master cylinder cover 45513-422-671

Honda CB900 / CB750 / CB650 / CB400 Chrome Master Cylinder Cover ~ Replaces 45513-422-671

$16.95 USD
29-0070
Add chrome to your master cylinder with this Chrome Master Cylinder Cover, 4-screw type, replacing OEM #45513-422-671 / #45519-422-671.Key Features• Chrome master cylinder cover•...
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1980 Honda CB750C · Master Cylinder Parts Buying guide

Rebuild the original or select a replacement

The four-screw reservoir kit reuses your original diaphragm plate. The replacement assembly has a 15.8mm piston and its own lever and switch configuration.

Parts to consider

Honda CB Front Master Cylinder Rebuild Kit ~ Replaces 45530-442-315 Original master-cylinder repair kitRebuild kit for the listed 1980 CB750C master cylinder; reference 45530-442-315.View part Honda CB900 / CB750 / CB650 / CB400 Master Cylinder Reservoir Rebuild Kit Four-screw reservoir kitReservoir, cap, diaphragm, O-ring and screws. Reuse the original diaphragm plate.View part Honda CB900 / CB750 / CB650 Front Master Cylinder Assembly Replacement master cylinder15.8mm piston with black lever and an integrated brake-light switch using two small spade connectors.View part

Original reservoir repair

The reservoir kit supplies the plastic reservoir, cap, diaphragm, O-ring and screws. The original diaphragm plate must be reused. Confirm that plate is present and serviceable before relying on this kit to complete a reservoir repair.

Replacement controls change the parts choice

The featured replacement assembly includes a black lever and brake-light switch with two small spade connectors. Its dedicated replacement lever is not for a stock Honda master cylinder. Match future service parts to the assembly you actually install.

Master Cylinder Parts questions

What must I retain with the reservoir kit?

Reuse the diaphragm plate from the old master cylinder. The kit includes the reservoir, cap, diaphragm, O-ring and screws, so check the retained plate before ordering.

Will original master-cylinder parts fit the replacement assembly?

Do not assume so. The replacement assembly has a dedicated lever, and the catalog explicitly separates it from stock-master-cylinder levers. Identify the fitted assembly before buying repair parts.

What electrical connection needs checking?

The featured replacement assembly uses an integrated brake-light switch with two small spade connectors. Compare the existing wiring and switch arrangement as part of the selection.

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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