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1972 Honda CB450K Engine Parts & Purchase Contents

Build an engine parts order for your 1972 CB450K from the components the work actually requires. Separate sealing, valve and drive purchases, then compare references and package details. An overhaul description needs a coverage check just as an individual replacement needs identification.

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Honda motorcycle parts

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

Honda CB750 CB650 CB550 front sprocket lock plate set 23811-292-000

Honda CB Front Sprocket Lock Plate Set ~ Replaces 23811-292-000

$5.95 USD
49-0782
Replace your front sprocket lock plate with this Front Sprocket Lock Plate with 2 lock plate bolts. Always good to replace these when installing...
New
Honda CB750 CB550 CB500 rear shock swingarm bushing 40548-268-000

Honda CB Rear Shock Swingarm Bushing ~ Replaces 40548-268-000

$6.20 USD
28-6918
Rear shock swingarm bushing designed to replace the original Honda component, matching OEM reference 40548-268-000. Fits between the shock and swingarm to provide proper...
New
Honda CB500 CB450 CL450K1 CL450K2 CL450K3 overhaul gasket set

Honda CB Overhaul Gasket Set

$64.95 USD
18-0098
Rebuild your CB500T or CB450/CL450 engine with this Engine Overhaul Gasket Set.Note: fits 5-speed CB450K models only.Key Features• Engine overhaul gasket set• For 5-speed...
New
Honda CB500 CB450 CL450K0 CL450K2 CL450K3 intake valve 14711-292-000

Honda CB Intake Valve ~ Replaces 14711-292-000

$26.95 USD
28-6920
Restore proper engine performance with this Intake Valve, designed as a direct replacement for the original Honda component. This valve replaces OEM part number...
New
Honda CB450 CL450 CB500T engine oil seal kit with 7 seals 91202-283-013

1968-76 Honda CB450 / CL450 / CB500T Engine Oil Seal Kit

$21.95 USD
01-9926
Refresh critical engine sealing points with this Engine Oil Seal Kit (7 Pieces), designed to replace common oil seals used in the engine assemblies...
New
Honda CB500 CB450 CL450K0 CL450K2 CL450K3 exhaust valve 14721-292-010

Honda CB Exhaust Valve ~ Replaces 14721-292-010

$26.95 USD
28-6919
Restore proper engine performance with this Exhaust Valve, designed as a direct replacement for the original Honda component. This valve replaces OEM part numbers...
New
Honda CB550 CB500 CB450 CL450K0 drive chain adjuster w nut and bolt

Honda CB Drive Chain Adjuster with Nut & Bolt

$24.95 USD
99-4854
Upgrade or restore your classic Honda motorcycle’s drive system with this Drive Chain Adjuster with Nut and Bolt — designed to keep your rear...
Honda CB750 CB550 drive chain adjuster screws black joker machine 90119-283-000

Honda CB Drive Chain Adjuster Screws ~ Black ~ Joker Machine ~ Replaces 90119-283-000

$59.95 USD
73-1059
Refresh your drive chain adjusters with these Joker Machine Brand Black Custom Type Drive Chain Adjuster Screws, set of 2, with gold-cadmium-plated nuts. Replaces...
New
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Honda CB500 CB450 joker machine magnetic oil drain plug 90013-312-000

Honda CB Joker Machine Magnetic Oil Drain Plug ~ Replaces 90013-312-000

$64.95 USD
12-0108
Catch engine debris between oil changes with this Joker Machine Magnetic Oil Drain Plug with O-ring, replacing OEM #90013-312-000. High-quality 6061 billet aluminum body...
New
Honda CB500 CB450 CL450K0 front sprocket 15 tooth 23801-348-690

Honda CB Front Sprocket ~ 15 Tooth ~ Replaces 23801-348-690

$23.95 USD
99-4807
15 tooth front sprocket designed as a direct replacement for the original Honda component, matching OEM reference 23801-348-690. Plays a key role in final...
Honda CB500 CB450 CB400 CB360 CB350 cylinder head gasket 12909-428-003

Honda CB Cylinder Head Gasket ~ Replaces 12909-428-003

$2.95 USD
73-1186
Restore top-end sealing performance with this high-quality Cylinder Head Gasket. Designed to match OEM specifications, this gasket ensures a perfect fit and proper sealing...
Honda CB500 CB450 CB360 special oil filter rotor washer 90481-292-000

Honda CB Special Oil Filter Rotor Washer ~ Replaces 90481-292-000

$9.46 USD
29-7034
Replace your oil filter rotor washer with this Special Angled Oil Filter Rotor Washer (16mm), replacing OEM #90481-292-000.Key Features• Special angled oil filter rotor...
Honda CB500 CB450 CL450 cam chain 219T x 128 14401-283-003

Honda CB500 / CB450 / CL450 Cam Chain ~ 219T x 128 ~ Replaces 14401-283-003

$99.95 USD
52-3034
Replace your CB500T or CB450 cam chain with this Cam Chain 219T x 128, replacing OEM #14401-283-003. D.I.D (Daido) brand. Pitch .3061, peanut side...
Honda CB500 CB450 CL450 cam chain 219FTSS x 128 14401-283-003

Honda CB500 / CB450 / CL450 Cam Chain ~ 219FTSS x 128 ~ Replaces 14401-283-003

$99.95 USD
52-4012
Replace your CB500T or CB450 cam chain with this Cam Chain 219FTSS x 128, replacing OEM #14401-283-003. D.I.D (Daido) brand. Pitch .3061, stepped parallel...
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Honda CB450 CL450K2 CL450K3 CL450K4 CL450K5 Athena overhaul gasket set

Honda CB Athena Overhaul Gasket Set

$99.95 USD
18-0297
Rebuild your CB450K or CL450K engine with this Athena Overhaul Engine Gasket Set. Athena of Italy is an original-equipment supplier to Yamaha, Honda, Kawasaki,...
compare

1972 Honda CB450K · Engine Buying guide

Start with the repair requirements, then compare each purchase

Gasket packages, seven oil seals and individual valves cover different requirements. The small cylinder-stud seal serves another sealing point. Cam chains and front sprocket hardware also need separate identification rather than a combined engine-kit assumption.

Parts to consider

Honda CB Athena Overhaul Gasket Set Athena overhaul gasket selectionAthena engine gasket set with listed CB450K application. Compare required gasket shapes and obtain the supplied contents before deciding its coverage.View part Honda CB Intake Valve ~ Replaces 14711-292-000 Individual intake valveIntake replacement referencing 14711-292-000, sold individually. Confirm the position and quantity required rather than counting a complete valve set from one purchase.View part 1968-76 Honda CB450 / CL450 / CB500T Engine Oil Seal Kit Seven engine oil sealsSeven-piece kit with listed seal references and dimension entries. Match the seals required; the description does not map every entry to an engine location.View part

Related parts: Small cylinder-stud gasket/seal · D.I.D 219FTSS × 128 cam chain · Front sprocket plate with two bolts

Compare packages with the joints being opened

List the gasket shapes and seal references needed for the work before comparing overhaul products. One gasket set expressly restricts CB450K use to five-speed engines. Neither overhaul description supplies a full piece inventory, so check coverage separately from the seven-piece oil-seal kit and small cylinder-stud seal.

Distinguish each drive component before choosing by name

The engine cam chains identify their D.I.D series and 128-link count; the front sprocket and its retaining plate belong to final drive. Keep those requirements separate when matching installed parts. A shared engine heading does not establish chain interchangeability or supply a sprocket with its hardware.

Buying questions

What information helps choose between an individual part and a set?

Identify the component and quantity the repair needs, then read the exact supplied contents. A set can contain several pieces without covering every part of the job. Individual valves and the small stud seal also need their own reference and quantity checks.

How can I assess a gasket set before opening the engine?

Use the relevant engine information and planned work to identify gasket requirements, then confirm the product contents. The restricted overhaul set requires a five-speed CB450K engine. A motorcycle year and overhaul label alone do not itemize what the package supplies.

Are oil seals included with either overhaul gasket set?

Neither overhaul-set description gives a complete piece inventory or confirms the separate seven-piece oil-seal kit as included. List the joints and seals involved in the repair, then check the chosen gasket set’s actual contents before combining purchases.

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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