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Currently viewing Brake Caliper Rebuild Kits, Caliper Pistons, Bleed Screws

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Honda CB900 / CB750 / CB650 Front Caliper Piston Sealing Ring ~ Replaces 45215-533-004

$5.80 USD
29-0529
Replace your front caliper piston sealing ring with this Front Brake Caliper Piston Sealing Ring, replacing OEM #45215-533-004.Key Features• Front brake caliper piston sealing...

Honda CB Caliper Bleed Screw Rubber Cap (Pk/10) ~ Replaces 45108-425-003

$11.95 USD
29-0500
Stock up on caliper bleed screw rubber caps with this Brake Caliper Bleed Screw Rubber Cap 10-pack. Universal type for series 1, 3, 4,...
New
Honda CB750 CB650 CB400 front brake caliper shaft boot 45133-425-003

Honda CB750 / CB650 / CB400 Front Brake Caliper Shaft Boot ~ Replaces 45133-425-003

$4.95 USD
99-4951
Upgrade or restore your classic Honda motorcycle’s front brake system with this Front Brake Caliper Shaft Boot — a quality replacement designed to help...

1979-81 Honda CB750 / CB650 Front Caliper Piston Boot ~ Replaces 45109-425-003

$15.95 USD
73-1041
Replace your front caliper piston dust boot with this Front Brake Caliper Piston Rubber Dust Boot, replacing OEM #45109-425-003.Key Features• Front brake caliper piston...

1979-81 Honda CB750 / CB650 Front Caliper Piston ~ Replaces 45107-425-003

$59.95 USD
29-0532
Replace your DOHC CB750 or CB650 front caliper piston with this Front Brake Caliper Piston, 42.8mm diameter x 36.5mm length, replacing OEM #45107-425-003.Key Features•...

1980 Honda CB750C · Front Caliper Parts Buying guide

Match the piston, seal and dust boot

The piston measures 42.8mm in diameter and 36.5mm long. Its sealing ring and rubber dust boot are individually listed service pieces for the 1980 CB750C application.

Piston inspection comes first

The featured piston is listed for one position on the 1980 CB750C. Compare the old piston and caliper condition before ordering. A new piston does not establish that the caliper bore and other hydraulic components remain serviceable.

Three separate products

The sealing ring uses reference 45215-533-004, while the dust boot uses 45109-425-003. Plan each required item explicitly and have the rebuilt brake checked using the correct service procedure before riding.

Front Caliper Parts questions

Does the piston include both rubber parts?

The piston, sealing ring and dust boot are separate products here. Build the order from the pieces your caliper service requires rather than assuming a bundled rebuild kit.

Can I use this piston in a changed caliper?

Compare the replacement caliper’s identity and piston dimensions first. The 1980 CB750C application does not establish compatibility with a different caliper installed later.

Can I retain the existing piston dust boot?

Inspect its condition and fit as part of the caliper assessment. A separate replacement boot is available for the 1980 application; choose the rubber parts the rebuild needs after checking the complete 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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