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1968 Honda CB450K Engine & Final-Drive Parts

Plan a 1968 Honda CB450K engine order around the work being done, from sealing joints and servicing valves to renewing cam-drive or final-drive parts. The right choice depends on the installed engine, required references and the contents of each product.

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Honda motorcycle parts

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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...
Honda CB750 CB450 CB400 CB350 CL450K0 steel front sprocket 17 tooth

Honda CB Steel Front Sprocket ~ 17 Tooth

$23.45 USD
99-4817
Front sprocket designed for a range of Honda models. A critical drivetrain component, it transfers power from the engine to the chain, making 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,...
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1968 Honda CB450K · Engine Buying guide

Build an order around the job

Gasket sets, oil seals, valves and cam chains serve different engine jobs. Front sprockets and their retaining hardware need separate final-drive checks. Start with the component being replaced, then compare its reference and the parts included.

Parts to consider

Honda CB Overhaul Gasket Set Five-speed overhaul gasket setEngine gasket set expressly restricted to five-speed CB450K engines. Confirm the fitted engine and the required gasket coverage.View part Honda CB Intake Valve ~ Replaces 14711-292-000 Replacement intake valveIntake valve referenced to Honda 14711-292-000. Sold individually; determine the number needed from the valve inspection.View part Honda CB500 / CB450 / CL450 Cam Chain ~ 219FTSS x 128 ~ Replaces 14401-283-003 D.I.D 219FTSS cam chain128-link engine cam chain with stepped parallel side plates and an included clip link. References Honda 14401-283-003.View part

Related parts: Seven-piece engine oil-seal kit · Magnetic oil drain plug with O-ring · Front sprocket lock plate and bolts

Separate the service jobs

An engine gasket order and a front-sprocket order need different comparisons. For sealing work, identify the opened joints and seal positions. For the final drive, compare the installed tooth count, chain requirements and lock plate before choosing parts.

Check contents before expanding the order

A gasket set is not automatically an oil-seal kit, and an individual valve is not a complete valve-service package. Compare the actual contents with the work planned so small seals, retaining hardware or additional valves are neither assumed nor overlooked.

Buying questions

How do I choose between a gasket set and an oil-seal kit?

Choose by the parts removed. The gasket sets address engine joints, while the separate oil-seal kit contains seven seals with listed references and sizes. Check the contents against each required position; the product names do not establish that one package includes the other.

Which front sprocket tooth count should I order?

Compare the fitted sprocket and intended final-drive specification. Both 15-tooth and 17-tooth options are offered, and the 17-tooth listing specifically warns that some CB450K applications used 15 teeth. Do not choose a ratio from the model year alone.

What should be confirmed before ordering engine valves?

Identify intake and exhaust positions separately, compare the listed Honda references, and have the removed valves and surrounding components assessed. Each valve is sold individually, so the order quantity should follow the work required rather than an assumed set size.

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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