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1966 Honda CB450K Engine Parts

Engine work on a 1966 Honda CB450K can involve very different parts: a cam chain, an oil drain plug or a small cylinder-stud seal. Identify the component being serviced first, then compare the precise specification rather than ordering by appearance alone.

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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...
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 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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1966 Honda CB450K · Engine Buying guide

Match the part to the engine job

The cam-chain options have distinct D.I.D designations. The magnetic plug has specified threads and clearance, while the small stud gasket serves a separate sealing position from the main combustion head gasket.

Parts to consider

Honda CB500 / CB450 / CL450 Cam Chain ~ 219FTSS x 128 ~ Replaces 14401-283-003 D.I.D 219FTSS cam chain128-link cam chain with stepped parallel side plates and an included clip link. The listing references Honda 14401-283-003.View part Honda CB Joker Machine Magnetic Oil Drain Plug ~ Replaces 90013-312-000 Joker Machine magnetic drain plugBillet aluminum plug with O-ring and a magnet intended to collect steel debris. Listed threads are M33.7 × 1.5mm.View part Honda CB Cylinder Head Gasket ~ Replaces 12909-428-003 Small cylinder-stud gasketSmall stud seal listed against Honda 12909-428-003 and 12909-283-000. This is not the large combustion-chamber head gasket.View part

Related parts: D.I.D 219T cam-chain alternative

Compare the two cam-chain types

Both offered chains reference Honda 14401-283-003 and contain 128 links, but their designations and side-plate shapes differ. Choose by the required chain specification and the engine service information. A shared reference number is not a reason to mix joining parts between chain types.

Build a sealing order around the exact part

The small cylinder-stud gasket and the drain-plug O-ring belong to different locations. Neither forms a complete engine gasket set. Identify the component removed and list the other service pieces needed for the job before ordering, especially when opening more than one engine joint.

Buying questions

Are these chains the same as the final-drive chain?

These are cam chains for the engine, identified as D.I.D 219T or 219FTSS with 128 links. Do not use those specifications to select the chain driving the rear wheel. Match each chain to its own application.

Is the small cylinder-stud gasket a complete head gasket?

No. The referenced 12909-series part is a small cylinder-stud seal. The main gasket sealing the combustion chambers is a different component. Compare the removed piece and its reference before ordering parts for cylinder-head service.

What must I check before choosing the magnetic plug?

Compare its listed M33.7 × 1.5mm threads, 45mm outside diameter and 19mm projection from the case with the installed drain opening. The supplied O-ring is part of the plug assembly; confirm the complete fit before purchase.

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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