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1971 Honda CB450K — Maîtres-cylindres et pièces de réfection

Decide whether your 1971 CB450K repair will retain its master cylinder or use a universal replacement. A service kit and reservoir components need a match to the existing assembly. Universal choices need their own hydraulic suitability, fitting and surrounding-hardware checks before the order is complete.

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Consultation en cours Maîtres-cylindres et pièces de réfection

Pièces pour motos Honda

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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...
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 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,...
Épuisé
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...
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...
Comparer

1971 Honda CB450K · Master Cylinder & Rebuild Parts Buying guide

Identify the retained master before selecting service parts

The rebuild kit references Honda 45530-377-305 but does not itemize internal parts. One reservoir cap includes diaphragm 45520-300-000; another cap lists a plastic O-ring. Universal Honda-type and Magura masters have different included fittings and mirror provisions.

Parts to consider

Honda CB Front Master Cylinder Rebuild Kit ~ Replaces 45530-377-305 Service kit for the identified masterMaster cylinder rebuild kit referencing Honda 45530-377-305, listed for the 1971 CB450K. Confirm the master actually fitted and any essential kit component. The description does not give a detailed internal piece list.Voir la pièce Honda CB Master Cylinder Reservoir Cap ~ Replaces 43513-MJ6-006 Thread-on cap and included diaphragmRound cap referencing Honda 43513-MJ6-006, with diaphragm 45520-300-000 supplied. Match the reservoir and cap attachment before choosing this package. A separate diaphragm is another repair choice for a retained cap.Voir la pièce Universal Honda-Type Front Master Cylinder Assembly ~ 13mm Universal Honda-type single-disc master13mm-bore unit with lever, banjo bolt, washers and brake-light switch included. Right-hand-threaded mirror mount stated. Check the custom hydraulic system’s requirements and fitting details before selecting this assembly.Voir la pièce

Pièces connexes : Cap package with plastic O-ring · Separate reservoir diaphragm · Magura fitting and mirror checks

Choose reservoir parts from the repair scope

The round thread-on cap references 43513-MJ6-006 and includes diaphragm 45520-300-000, also available separately. The other cap references 45513-341-771 with plastic O-ring. Compare the retained cap and reservoir before combining purchases, so that a cap package and standalone component do not duplicate the same repair.

Compare universal specifications without extending kit fitment

The Honda-type master has a 13mm bore and includes lever, banjo hardware and brake-light switch, with a right-hand-threaded mirror mount. Magura states a 13mm piston and 12mm stroke, separate switch and banjo hardware, and no mirror mount. Confirm the custom system requirements; the model-listed service kit is not established for either universal assembly.

Questions to help choose the repair parts

How should I check a rebuild kit when a particular internal part is needed?

The description supplies reference 45530-377-305 without a detailed component list. Identify the fitted master and confirm that essential part is in the kit before ordering. Do not transfer the application to a universal master or count unspecified contents from the photograph.

Does matching the two universal units’ 13mm dimension settle the choice?

Their other specifications and contents still differ. Magura lists a 12mm stroke and separate switch and banjo hardware; the Honda-type assembly includes those fittings. Assess the hydraulic arrangement and installation details rather than selecting by the cylinder dimension alone.

Where does the separate master-cylinder rubber boot belong?

The boot description places it where the brake hose joins the master and references 45522-300-010. It is distinct from the reservoir diaphragm 45520-300-000. Compare the location being repaired and do not assume the service kit or cap purchase supplies the boot.

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