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1982 Honda CB450TC Master Cylinder Rebuild Parts

Identify which part of your 1982 Honda CB450TC front master cylinder needs attention before replacing the whole unit. An internal rebuild kit, a two-screw reservoir kit and a separate diaphragm address different areas, and must match the master cylinder now fitted.

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Currently viewing Master Cylinder & Rebuild Parts

Honda motorcycle parts

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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 CB900 CB750 CB650 CB450 master cylinder reservoir rebuild kit

Honda CB Master Cylinder Reservoir Rebuild Kit

$54.95 USD
29-0051
Rebuild your master cylinder reservoir with this Front Master Cylinder Reservoir Rebuild Kit, 2-screw cover type. Includes plastic reservoir, reservoir cap, diaphragm, O-ring, and...
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 CB1100 CB1000 CB900 master cylinder rubber boot 45522-422-000

Honda CB Master Cylinder Rubber Boot ~ Replaces 45522-422-000

$8.95 USD
73-0094
Replace your master cylinder rubber boot with this Master Cylinder Rubber Boot, replacing OEM #45522-422-000.Key Features• Master cylinder rubber boot• Replaces OEM #45522-422-000• Honda...
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,...
Honda CB750 CB700SC CB650 master cylinder diaphragm 45520-MA5-671

Honda CB Front Master Cylinder Reservoir Diaphragm ~ Replaces 45520-MA5-671

$11.50 USD
08-0284
Replace the diaphragm on your later DOHC CB's front master cylinder reservoir with this Front Master Cylinder Reservoir Diaphragm, replacing OEM #45520-MA5-671 / #45520-MA5-672...
Honda CB750K CB1000 CB650 front master cylinder kit 45530-MA4-671

Honda CB Front Master Cylinder Rebuild Kit ~ Replaces 45530-MA4-671

$29.95 USD
08-0201
Rebuild your later-model CB's front master cylinder with this Front Master Cylinder Rebuild Kit, replacing OEM #45530-MA4-671. Fits the CB750K (1981-82), CB1000, CB900F (2002-07),...
Honda CB1100 CB900 CB750 chrome master cylinder cover 45513-MA5-671

Honda CB Chrome Master Cylinder Cover ~ Replaces 45513-MA5-671

$22.95 USD
29-0071
Add chrome to your master cylinder with this Chrome Master Cylinder Cover, 2-screw type, replacing OEM #45513-MA5-671 / #45513-413-941.Key Features• Chrome master cylinder cover•...
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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...
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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1982 Honda CB450TC · Master Cylinder Parts Buying guide

Choose internal, reservoir or diaphragm repair parts

The internal kit references 45530-MA4-671. The reservoir kit is for a two-screw cover, while the separate diaphragm is the smaller purchase when the surrounding reservoir components remain suitable for service.

Parts to consider

Honda CB Front Master Cylinder Rebuild Kit ~ Replaces 45530-MA4-671 Front master cylinder rebuild kitInternal rebuild kit replacing Honda reference 45530-MA4-671. Match it to the master cylinder fitted to the bike.View part Honda CB Master Cylinder Reservoir Rebuild Kit Two-screw reservoir rebuild kitReservoir kit for the two-screw cover type, with plastic reservoir, cap, diaphragm, O-ring and screw hardware.View part Honda CB Front Master Cylinder Reservoir Diaphragm ~ Replaces 45520-MA5-671 Reservoir diaphragmSeparate reservoir diaphragm; Honda references include 45520-MA5-671, 45520-MA5-672 and 45520-H5M-630.View part

Separate hydraulic internals from the reservoir

The internal rebuild kit and the reservoir package serve different portions of the assembly. A reservoir repair is not evidence that the bore or piston area is serviceable. Have the fault identified first, then choose the parts appropriate to that diagnosis.

Check the existing cover arrangement

The reservoir kit supplies the plastic reservoir, cap, diaphragm, O-ring and screw hardware for the two-screw type. If the reservoir and cover can be reused and only the diaphragm is needed, compare the separate diaphragm’s shape and reference before ordering it.

Common buying questions

Which kit should I choose for a changed master cylinder?

Identify the replacement master cylinder itself. The model-year application for these repair parts does not establish their fit inside an aftermarket unit, even if that complete unit fits the handlebar.

Does the reservoir kit also rebuild the hydraulic internals?

The reservoir kit contains the reservoir-side components. The internal master-cylinder rebuild kit is a separate product with reference 45530-MA4-671, so choose according to the area requiring repair.

Can I buy the diaphragm without the reservoir?

Yes. The separate diaphragm references 45520-MA5-671, 45520-MA5-672 and 45520-H5M-630. Compare the fitted reservoir and existing diaphragm before choosing it for a smaller repair.

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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