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1973 Honda CB450K Caliper Coverage, Line Repairs & Clutch Parts

List the brake and clutch assemblies retained on your 1973 CB450K before choosing their replacement parts. A caliper package can overlap individual service purchases, while a hose and clutch plate have narrower coverage. Compare actual attachments, written contents and required quantities for each repair location.

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Currently viewing Brake & Clutch

Honda motorcycle parts

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

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 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 CB1100 CB1000 CB900 CB750 CB500 clutch tab washer 90431-292-000

Honda CB Clutch Tab Washer ~ Replaces 90431-292-000

$7.50 USD
73-0839
Replace your clutch tab washer with this Clutch Washer, 16mm size, replacing OEM #90431-292-000.Key Features• Clutch tab washer• 16mm size• Replaces OEM #90431-292-000• Honda...
Honda CB750 CB550 CB450 CB400F clutch lever 53178-369-700

Honda CB Clutch Lever ~ Replaces 53178-369-700

$9.95 USD
08-0006
Replace a worn silver-with-black-tip clutch lever with this Clutch Lever, a direct replacement for OEM #53178-369-700. Exceptionally broad fitment across the classic Honda lineup,...
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 CB700 CB650 rear friction shoe spring set 2 43151-346-000

Honda CB Rear Friction Shoe Spring Set/2 ~ Replaces 43151-346-000

$7.95 USD
73-0895
Replace your rear brake shoe springs with this Rear Brake Shoe Spring Set of 2, replacing OEM #43151-346-000.Key Features• Rear brake shoe spring set•...
Honda CB750 CB550 CB450 CB400F brake lever 53175-369-003

Honda CB Brake Lever ~ Replaces 53175-369-003

$9.95 USD
08-0007
Match the clutch-side silver-with-black-tip lever with this Brake Lever, a direct replacement for OEM #53175-369-003. Fits the same broad SOHC CB750 and classic Honda...
Honda CB750 CB550 handlebar clutch lever pivot bolt and nut set 90114-310-000

Honda CB Handlebar Clutch Lever Pivot Bolt & Nut Set ~ Replaces 90114-310-000

$6.95 USD
73-0996
Replace your clutch lever pivot hardware with this Handlebar Clutch Lever Pivot Bolt & Nut Set, used to fasten the clutch lever in place....
Honda CB750 CB550 CB500 CB450 front friction pad set 45105-323-023

Honda CB Front Friction Pad Set ~ Replaces 45105-323-023

$32.95 USD
29-3501
Replace your front brake pads with this Brake Pad Set of 2 in Kevlar, 52 x 20mm + 52 x 12.8mm. Replaces OEM #45105-323-023...
Honda CB750 CB550 CB500 CB450 front stop hose in.a in. 45125-300-003

Honda CB Front Stop Hose "A" ~ Replaces 45125-300-003

$47.95 USD
51-7205
Replace your front brake hose "A" with this Front Brake Hose "A", connecting the 3-way joint to the front brake pipe. Replaces OEM #45125-300-003....
Honda CB750 CB550 handlebar brake lever pivot bolt and nut set 90114-300-000

Honda CB Handlebar Brake Lever Pivot Bolt & Nut Set ~ Replaces 90114-300-000

$7.95 USD
73-1029
Replace your brake lever pivot hardware with this Brake Lever Pivot Bolt & Nut Set, used to fasten the brake lever in place. Includes...
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 CB700 CB500 CB450 CL450K0 steel clutch plate 22321-MG8-000

Honda CB Steel Clutch Plate ~ Replaces 22321-MG8-000

$11.95 USD
39-1409
Replace your SOHC CB750, CB700SC Nighthawk, CB500T, or CB450/CL450 steel clutch plate with this Steel Clutch Drive Plate, replacing OEM #22321-MG8-000 / #22321-283-000.Order the...
Honda CB750 CB650 CB550 CB500 brake rod spring 95014-73100

Honda CB750/CB650/CB550/CB500 Brake Rod Spring

$2.95 USD
29-7006
Replace your brake rod spring with this Brake Rod Spring, replacing OEM #95014-73100. Exceptionally broad fitment across the SOHC and DOHC CB750 lineup, CB650...
Honda CB750 CB550 CB500 CB450 front brake pipe 45128-323-020

Honda CB Front Brake Pipe ~ Replaces 45128-323-020

$17.09 USD
07-9971
Replace the front brake pipe on a wide range of '70s Hondas with this Front Brake Pipe, replacing OEM #45128-323-020. Approximately 8" total length,...
Honda CB750 CB700 CB650 CB550 brake rod joint 95015-32001

Honda CB750/CB700/CB650/CB550 Brake Rod Joint

$3.50 USD
73-0843
Replace your brake rod joint with this Brake Rod / Arm Joint, replacing OEM #95015-32001.Key Features• Brake rod / arm joint• Replaces OEM #95015-32001•...
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Honda CB750 CB550 CB450 gp-style clutch lever 53178-369-700

Honda CB GP-Style Clutch Lever ~ Replaces 53178-369-700

$9.95 USD
08-0080
Bring racetrack-inspired ergonomics to your cockpit with this Custom GP-Style Clutch Lever in silver. Features a more pronounced bend/kickback than the stock lever, for...
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 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 CB750 CB700 CB650 CB550 CB500 brake rod joint pin w cotter pin

Honda CB Brake Rod Joint Pin with Cotter Pin

$5.95 USD
73-0844
Replace your brake rod joint pin with this Brake Rod Joint Pin with Cotter Pin, replacing OEM #95015-52000 (joint pin) and #94201-16250 (cotter pin).Key...
Honda CB750 CB700 CB650 CB550 CB500 brake rod adjusting nut 95015-42000

Honda CB Brake Rod Adjusting Nut

$4.50 USD
73-0845
Replace your brake rod adjusting nut with this Brake Rod Adjusting Nut, replacing OEM #95015-42000.Key Features• Brake rod adjusting nut• Replaces OEM #95015-42000• Honda...
Honda CB750 CB550 CB500 CB450 brake hose rubber grommet 45146-300-000

Honda CB Brake Hose Rubber Grommet ~ Replaces 45146-300-000

$4.61 USD
73-0091
Replace your brake hose grommet with this Brake Hose Rubber Grommet, the rubber grommet that attaches to the brake hose, replacing OEM #45146-300-000.Key Features•...
Honda CB750 CB550 CB500 CB450 CB400 brake lever gp style 53175-369-003

Honda CB Brake Lever ~ GP Style ~ Replaces 53175-369-003

$10.95 USD
08-0414
Match your GP-style clutch lever with this Custom GP-Style Brake Lever in silver. Features a more pronounced bend/kickback than stock for that classic race-lever...
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 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,...
Honda CB750K CB500T CB450K front stop hose guide 45129-300-000

1969-76 Honda CB750K / CB500T / CB450K Front Stop Hose Guide ~ Replaces 45129-300-000

$8.95 USD
73-0950
Replace your front brake hose guide with this Front Brake Hose Guide, replacing OEM #45129-300-000.Key Features• Front brake hose guide• Replaces OEM #45129-300-000• Honda...
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...
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Honda CB750 CB700 CB650 CB550 brake rod adjuster knob joker machine

Honda CB Brake Rod Adjuster Knob ~ Joker Machine

$29.95 USD
73-1072
Upgrade your brake rod adjuster knob with this Joker Machine Brand Custom Brake Rod Adjuster Knob, replacing OEM #95015-42000.Gives your bike a great custom...
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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 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...
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...
Honda CB125S CB175 CB350 CB450 hand lever 53175-402-700

Honda CB Hand Lever ~ Replaces 53175-402-700

$9.95 USD
08-0066
Fit a silver-with-black-tip brake lever on your small-bore Honda with this Brake Lever, replacing a range of OEMs (#53175-402-700, #53170-216-670, #53175-286-000, #53170-286-670, #53170-329-010, #53170-369-700,...
Honda CB1000 CB500 CB450 CL450K0 clutch friction plate 22201-MA7-000

Honda CB Clutch Friction Plate ~ Replaces 22201-MA7-000

$8.95 USD
39-1046
Replace your clutch friction plates with this Clutch Friction Plate, replacing OEM #22201-MA7-000 / #22201-283-000.Order the number of pieces required for your model.Key Features•...
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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1973 Honda CB450K · Brake & Clutch Buying guide

Keep replacement-package coverage tied to the assembly repaired

The caliper is an aftermarket assembly with named major parts and a possible final-assembly requirement. Hose A identifies the joint-to-pipe section. Clutch plate counts concern pieces used per motorcycle, while hand controls and rod connections require separate attachment and component checks.

Parts to consider

Honda CB Front Brake Caliper Assembly ~ Replaces Honda OEM 45100-390-405 Caliper replacement with listed major partsAftermarket assembly referencing Honda 45100-390-405, sold each. Contents name body, pads, piston, piston rubber, bleed screw, bolts and bleed cap. Final assembly may be required before installation; compare the original caliper and reference.View part Honda CB Front Stop Hose "A" ~ Replaces 45125-300-003 Hose A for the joint-to-pipe sectionFront hose referencing Honda 45125-300-003, 13.75 inches long. Connects the three-way joint to the front brake pipe. Match that actual section’s route and end connections before choosing it for retained or changed brake equipment.View part Honda CB Clutch Friction Plate ~ Replaces 22201-MA7-000 Friction plate with required-piece guidanceReferences Honda 22201-MA7-000 / 22201-283-000. The CB450K application states seven pieces per bike, without expressly naming a supplied seven-piece pack. Confirm pieces per purchase before calculating a repair or full-set order.View part

Related parts: Master-cylinder service kit · Retained clutch lever attachment · Independent rod connection repair

Check component overlap before ordering a complete caliper

The assembly names body, pads, piston, piston rubber, bleed screw, bolts and bleed cap. Compare that list with any individual repairs being considered for the same location. Its description also says final assembly may be required, so establish the delivery state and planned work before choosing the replacement package.

Use the retained master and clutch to define their own purchases

A rebuild kit’s CB450K application does not establish service fitment for a universal master. Universal 13mm choices need direct hydraulic and fitting comparisons. For clutch plates, check the retained assembly and supplied quantities separately from the seven-friction and six-steel application requirements.

Comparing brake and clutch repair coverage

How can I avoid duplicating caliper parts in a wider brake order?

Read the full assembly’s listed body, pad, piston, rubber, bleed and bolt contents. Compare them with the service location needing repair before adding standalone pieces for that same location. Lines, master components and hand controls have their own descriptions and should be assessed separately.

What should I verify if the front hydraulic layout was modified?

Compare the actual sections, routed lengths and end fittings. Hose A here describes a 13.75-inch joint-to-pipe section; the pipe has its own approximate measurement and reference. Those facts do not specify every connection needed by a changed master or rearranged line.

Does a plate application count settle a partial clutch repair order?

It gives the model’s stated required pieces, without identifying a complete supplied pack. Inspect the clutch retained, determine which plates need renewal and confirm pieces per purchase before calculating the order. A partial repair and a full-set requirement need different quantity decisions.

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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