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

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Honda CB Caliper Piston Sealing Ring ~ Replaces 45108-300-003

$7.95 USD
29-0527
Replace your front caliper piston sealing ring with this Front Brake Caliper Piston Sealing Ring, replacing OEM #45108-300-003. Also fits the rear brake caliper...

Honda CB Front Brake Caliper Bleed Screw ~ Replaces 45224-579-013

$8.95 USD
73-0993
Replace your front caliper bleed screw with this Front Brake Caliper Bleed Screw, replacing OEM #45224-579-013.Key Features• Front brake caliper bleed screw• Replaces OEM...
New
Honda CB550 CB500 CB450 CB400 CB360 front caliper piston 45107-323-020

Honda CB Front Caliper Piston ~ Replaces 45107-323-020

$21.78 USD
29-0058
Replace your front brake caliper piston with this Front Brake Caliper Piston, 38.15mm diameter x 34mm height, replacing OEM #45107-323-020. The side with the...

Honda CB Front Brake Caliper Bolt & Washer Set ~ Replaces 90165-323-000

$12.50 USD
73-1027
Replace your front caliper bolts and washers with this Front Brake Caliper Bolt & Washer Set. Includes 2 bolts and 2 washers. Replaces OEM...

Honda CB Front Brake Caliper Assembly ~ Replaces Honda OEM 45100-390-405

$119.95 USD
33-0039
Replace a worn, seized, damaged, or missing front brake caliper with this aftermarket full caliper assembly for Honda CB models. It is a replacement...

1974 Honda CB360G · Front Brake Caliper Parts Buying guide

Decide whether to rebuild or replace the caliper

The available assembly and individual piston and seal support different repair scopes. Body condition, dimensions and prior brake changes should drive the choice; a new piston cannot establish that the rest of a damaged caliper is serviceable.

Check the full assembly contents

The replacement caliper includes the body, pads, piston, piston rubber, bleed screw, bolts and bleed cap. It is sold as an aftermarket replacement for reference 45100-390-405 and may need final assembly. Check those contents before duplicating the same parts elsewhere in your order.

Use individual parts for an assessed rebuild

The separate piston references 45107-323-020 and measures 38.15 × 34 mm; the sealing ring references 45108-300-003. Compare the actual caliper first. Brake inspection, assembly and bleeding are safety-critical, so use the Honda procedure and qualified help where needed before the bike returns to service.

Front Brake Caliper Parts questions

Does the replacement caliper arrive ready to bolt on?

Final assembly may be required. The package includes the main caliper components, but the system still needs proper inspection, assembly, installation and bleeding before the motorcycle is ridden.

Can I buy only the piston and sealing ring?

Yes. Both are available separately for an appropriate rebuild. Match the piston dimensions and seal reference to the installed caliper, and have the body assessed before deciding it can be reused.

What comes in the linked caliper bolt set?

The linked hardware set contains two bolts and two washers, with reference 90165-323-000. Check whether you need it separately when choosing the full caliper assembly, which already includes bolts.

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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