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1974 Honda CB450K Engine Gaskets, Valves & Drive-Part Purchases

Build the engine order for your 1974 CB450K around the work already identified and the components fitted. A gasket set, individual valve and drive component each answer a different requirement. Compare their references and confirmed contents before deciding which purchases cover the repair.

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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,...
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1974 Honda CB450K · Engine Buying guide

Bring the repair list to each product comparison

Overhaul gaskets have unitemized contents, with one set restricted to five-speed engines. Valves are individual purchases. Cam chains specify their D.I.D series and included clip link; the magnetic drain plug has separate thread and clearance checks.

Parts to consider

Honda CB Athena Overhaul Gasket Set Athena engine overhaul gasketsOverhaul gasket set listing CB450K 1968–74 application. Obtain its supplied gasket inventory and compare the shapes needed for the engine work.View part Honda CB Intake Valve ~ Replaces 14711-292-000 Intake valve, sold individuallyReplacement intake valve referencing 14711-292-000. Order the assessed quantity for that position; other valve hardware is not named as included.View part Honda CB500 / CB450 / CL450 Cam Chain ~ 219FTSS x 128 ~ Replaces 14401-283-003 D.I.D 219FTSS × 128 cam chainCam chain described with stepped parallel plates, reference 14401-283-003 and clip link included. Confirm the full series and intended joining requirement.View part

Related parts: Seven-seal engine kit with listed references · 15-tooth final-drive front sprocket · Angled oil-filter rotor washer

Turn a package description into a checked purchase list

Compare the required gasket shapes with confirmed contents for the set under consideration. Neither overhaul description is a complete supplied-parts inventory. Include separate oil seals and the small cylinder-stud seal only after checking their references and whether the chosen package already contains the components needed for the job.

Keep engine drive and final-drive requirements separate

The cam chains name D.I.D series and 128-link length, whereas the front sprocket identifies its final-drive reference and tooth count. Record those requirements separately on the order. A common motorcycle application does not make the chain specifications interchangeable or confirm a complete drive assembly supplied with any one product.

Buying questions

What details should accompany an order after the engine has been changed?

Identify the engine fitted, the component position and its replacement reference before choosing parts. Check dimensions or construction where needed. The model-year heading alone cannot document a swapped engine or establish that an overhaul set matches every joint involved.

How should I account for valve quantities in a larger service order?

The intake and exhaust valves are both sold individually, with different references. Keep the assessed count for each position beside its product. Their shared application does not supply a full valve set or the other hardware required by the planned work.

What should I verify before combining gasket and oil-seal purchases?

Obtain the gasket set’s contents, then compare the required oil-seal references with the seven-seal inventory. Check the small stud seal separately. Package names do not confirm overlap, every sealing location covered or the required quantities for the engine actually being serviced.

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Send your model and year, plus photos of your existing part and any changes to the original setup.

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