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1984 Honda CB650SC Nighthawk Hydraulic Cylinder Repair Parts

The 1984 CB650SC hydraulic selection includes cylinder rebuild parts and a front-brake cover package specifically listed for 1984–85. Separate reservoir-top work from an internal master-cylinder repair, then identify any clutch slave requirement. The correct package depends on the location and condition of the fault.

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Currently viewing Master Cylinder & Rebuild Parts

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Honda CB750F CB750C CB700SC front master cylinder kit 45530-MA5-671

Honda CB Front Master Cylinder Rebuild Kit ~ Replaces 45530-MA5-671

$24.95 USD
08-0209
Refresh your DOHC CB's front master cylinder with this Front Master Cylinder Rebuild Kit, replacing OEM #45530-MA5-671. Fits the 1981-82 CB750F/C, CB750SC/CB700SC Nighthawk, CB900F/CB900C,...
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 CB750SC CB700SC CB650SC clutch master cylinder kit 22886-MB0-305

Honda Clutch Master Cylinder Rebuild Kit ~ Replaces 22886-MB0-305

$29.95 USD
08-0207
Rebuild your Nighthawk's clutch master cylinder with this Clutch Master Cylinder Rebuild Kit, replacing OEM #22886-MB0-305. Fits the mid-'80s CB750SC and CB700SC Nighthawks, CB1000...
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Honda CB700SC CB650SC CB550SC clutch slave cylinder rebuild kit 22865-MB0-003

1983-86 Honda CB700SC/CB650SC/CB550SC Clutch Slave Cylinder Rebuild Kit ~ Replaces 22865-MB0-003

$27.03 USD
08-0310
Rebuild your Nighthawk's clutch slave cylinder with this Clutch Slave Cylinder Rebuild Kit. Complete with oil seal (OEM #91209-MB0-003), spring (OEM #22864-MB0-903), piston cup...
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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 CB700SC CB650SC CB550SC clutch slave cylinder piston 22863-MB0-003

1983-86 Honda CB700SC / CB650SC / CB550SC Clutch Slave Cylinder Piston ~ Replaces 22863-MB0-003

$36.95 USD
29-0501
Replace your Nighthawk clutch slave cylinder piston with this Clutch Slave Cylinder Piston, replacing OEM #22863-MB0-003.Key Features• Clutch slave cylinder piston• Replaces OEM #22863-MB0-003•...
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Honda CB700SC CB650SC master cylinder cover diaphragm screws 45513-KE5-026

Honda Nighthawk Master Cylinder Cover with Diaphragm & Screws

$27.95 USD
08-0290
Restore your Nighthawk's master cylinder top with this Master Cylinder Cover with Diaphragm and Screws. A complete assembly replacing OEM #45513-KE5-026 (cover), #45520-MA5-672 (diaphragm),...
Honda CB750SC CB700SC CB650SC clutch master cylinder pushrod kit 22884-MB0-006

Honda Nighthawk Clutch Master Cylinder Pushrod Kit

$13.95 USD
08-0301
Rebuild your Nighthawk's clutch master cylinder pushrod with this Clutch Master Cylinder Pushrod Kit. Includes the pushrod (OEM #22884-MB0-006) and bushing (OEM #22885-MB0-006), two...
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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1984 Honda CB650SC Nighthawk · Hydraulic Cylinder Repair Parts Buying guide

Identify the hydraulic assembly before choosing a repair package

A reservoir-cover repair, an internal master-cylinder rebuild and clutch slave work involve different parts. Locate the fault and identify the fitted assembly before comparing the packages.

Parts to consider

Honda Nighthawk Master Cylinder Cover with Diaphragm & Screws Reservoir cover assemblyMaster-cylinder cover option explicitly listed for the 1984–85 CB650SC.View part Honda CB Front Master Cylinder Rebuild Kit ~ Replaces 45530-MA5-671 Brake master-cylinder kitFront brake master-cylinder rebuild kit replacing reference 45530-MA5-671.View part Honda Clutch Master Cylinder Rebuild Kit ~ Replaces 22886-MB0-305 Clutch master-cylinder kitClutch master-cylinder rebuild kit, reference 22886-MB0-305.View part

Related parts: Clutch pushrod and bushing · Clutch slave rebuild kit

Check the cover replacement reference

The current product FAQ identifies this as a front-brake reservoir cover set. Match cover reference 45513-KE5-026 and the fitted reservoir’s mounting and sealing interfaces. The cover, diaphragm and screws do not supply the master-cylinder body or internal rebuild parts.

Resolve unlisted master-kit contents before ordering

The brake and clutch master rebuild kits have separate replacement references, but their descriptions do not itemize every internal part. If a particular component is needed, confirm that the chosen package supplies it before adding or omitting a separate purchase.

Hydraulic Cylinder Repair Parts questions

Do I need to order the diaphragm and cover screws separately?

The cover assembly includes both: diaphragm reference 45520-MA5-672 and screws reference 93600-04012-1G. Compare the complete assembly with the parts you already have before adding separate replacements.

Is the clutch pushrod kit for the master or slave cylinder?

The pushrod and bushing are identified as clutch master-cylinder parts. The separate slave kit lists an oil seal, spring, piston cup and bleeder cap. Match the component needing repair to the correct assembly; a piston cup should not be treated as confirmation that a replacement piston is supplied.

Can the brake master kit be selected for aftermarket controls?

Verify the maker and model of the installed control first. The listed original-application kit does not establish internal compatibility with a replacement master cylinder.

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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