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1974 Honda CB350F1 Master Cylinder Parts

Identify the master cylinder fitted to your CB350F1 before ordering internal or reservoir parts. Many bikes have replacement controls, and a stock-type rebuild kit, round thread-on cap and separate diaphragm should each be matched to the actual assembly.

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Currently viewing Master Cylinder & Rebuild Parts

Honda motorcycle parts

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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...
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...
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 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...
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 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,...
Sold out
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...
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1974 Honda CB350F1 · Master Cylinder Parts Buying guide

Rebuild the cylinder you actually have

The original-style service choices differ from universal complete master cylinders. Use the existing body, reservoir and cap arrangement to decide whether a rebuild kit or an external sealing part is needed.

Parts to consider

Honda CB Front Master Cylinder Rebuild Kit ~ Replaces 45530-377-305 Master-cylinder rebuild kitJapanese-made front master-cylinder rebuild kit, reference 45530-377-305.View part Honda CB Master Cylinder Reservoir Cap ~ Replaces 43513-MJ6-006 Thread-on cap with diaphragmRound thread-on reservoir cap supplied with a diaphragm.View part Honda CB Master Cylinder Reservoir Diaphragm ~ Replaces 45520-300-000 Reservoir diaphragmSeparate replacement diaphragm, reference 45520-300-000.View part

Assess the body before ordering a rebuild kit

The Japanese-made kit is cross-referenced to 45530-377-305 and includes CB350F in its application. Confirm the fitted master cylinder has the matching design and a serviceable bore. A replacement or custom cylinder may need different internals despite being mounted on a CB350F1.

Avoid duplicate reservoir purchases

The featured thread-on cap includes a diaphragm, while the diaphragm is also available separately. Choose according to the condition of both pieces. Universal assemblies vary in bore, fittings, switch provision and mirror mounting; do not infer their requirements from these original-style service parts.

Ordering questions

Can this rebuild kit service any aftermarket master cylinder?

No universal compatibility is established. Identify the installed cylinder and its internal specification first. A motorcycle application does not prove that a previous owner’s replacement assembly uses the same kit.

Do I need the separate diaphragm with the featured cap?

The featured cap already includes a diaphragm. Buy the separate diaphragm when that alone is the part required, after checking the reservoir and cap arrangement.

Should I select a larger bore for better braking?

Do not choose a bore from a performance claim alone. A changed master cylinder must suit the complete hydraulic system, lever arrangement and fittings; have that compatibility assessed before selecting a custom assembly.

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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