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1974 Honda CB550K Front Brake Caliper Parts & Bleed Screws

Front-caliper choices for the 1974 Honda CB550K include a measured replacement piston, a separate sealing ring, bleed screw, adjuster hardware and an aftermarket assembly. Compare the existing body and components first; the assembly listing warns that final assembly may be required.

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

Honda motorcycle parts

Choose your model and year to see parts listed for your bike.

Honda CB900 CB750 CB650 caliper piston sealing ring 45108-300-003

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 CB750 CB550 front brake caliper bleed screw rubber cap 45110-300-003

Honda CB Front Brake Caliper Bleed Screw Rubber Cap (Stock Type) ~ Replaces 45110-300-003

$3.95 USD
29-7018
Replace your front caliper bleed screw rubber cap with this Stock Type Front Brake Caliper Bleed Screw Rubber Cap, the same design as the...
Honda CB750 CB550 CB500 CB450 front caliper adjuster set 45117-341-700

Honda CB750 / CB550 / CB500 / CB450 Front Caliper Adjuster Set ~ Replaces 45117-341-700

$13.95 USD
29-7016
Restore your front caliper adjuster with this Front Brake Caliper Adjuster Set, including adjusting bolt, spring, washer, and nut. Replaces OEM #45117-341-700 (bolt), #45119-300-020...
Honda CB750 CB550 CB500 front brake caliper bleed screw 45224-579-013

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...
Honda CB1100 CB1000 caliper bleed cap (pk 10) 45108-425-003

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,...
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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 CB750 CB550 front brake caliper bolt and washer set 90165-323-000

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 CB550 CB500 CB450 front brake caliper assembly 45100-390-405

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...
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1974 Honda CB550K · Caliper Parts Buying guide

Rebuild or replace the caliper

Individual piston, seal and hardware listings support a component order, while the aftermarket assembly includes several of those parts. Compare its contents with the repair planned and retain its warning about possible final assembly.

Parts to consider

Honda CB Front Caliper Piston ~ Replaces 45107-323-020 Front caliper piston38.15mm diameter by 34mm high piston replacing OEM 45107-323-020.View part Honda CB Caliper Piston Sealing Ring ~ Replaces 45108-300-003 Caliper piston sealing ringSealing ring replacing OEM 45108-300-003 for the CB550K front caliper.View part Honda CB Front Brake Caliper Assembly ~ Replaces Honda OEM 45100-390-405 Complete front caliper assemblyAftermarket assembly with pads and piston; final assembly may be required before installation.View part

Related parts: Caliper bleed screw · Caliper adjuster set · Caliper bolt and washer set

Piston orientation

The piston description states that its side with a 2mm outer lip faces the brake pad. It gives a 38.15mm diameter, 34mm height and OEM 45107-323-020 reference. Compare these details with the installed piston before choosing this component for the repair.

The adjuster set

The front-caliper adjuster set contains an adjusting bolt, spring, washer and nut. The separate caliper bolt-and-washer set contains two bolts and two washers. These packages serve different hardware positions; compare the components needed before selecting either set or both.

Caliper questions

What is included with the complete caliper assembly?

The assembly includes the body, pads, piston, piston rubber, bleed screw, bolts and bleed cap. It references OEM 45100-390-405 and lists the CB550K, but may require final assembly before installation.

Does the piston seal fit the 1974 CB550K?

The sealing ring references OEM 45108-300-003 and lists the CB550K front caliper from 1974 to 1978. Compare that reference with the fitted caliper; the seal is a separate item from the piston.

What is in the caliper bolt-and-washer set?

It contains two bolts and two washers and references OEM 90165-323-000. Its description includes the CB550K from 1974 to 1978. This is a separate hardware package from the four-component caliper adjuster set.

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