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1966 Honda CB450K Magnetic Oil Drain Plugs

For the 1966 Honda CB450K, the oil-system choice here is a Joker Machine magnetic drain plug. Check the existing opening and space around it carefully. Its thread, outside diameter and projection matter as much as the reference number on the listing.

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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...
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1966 Honda CB450K · Oil Filters, Drain Plugs, Oil Pump & Gauges Buying guide

Check thread fit and space around the drain

This plug combines a billet aluminum body, a magnetic debris collector and an O-ring. Its listing provides specific fitting dimensions rather than a complete oil-filter, pump or gauge package.

Parts to consider

Honda CB Joker Machine Magnetic Oil Drain Plug ~ Replaces 90013-312-000 Magnetic plug with O-ringJoker Machine 6061 billet aluminum plug, referenced to Honda 90013-312-000. Listed M33.7 × 1.5mm thread and 19mm socket fitting.View part

Compare the complete fitted shape

Thread size alone does not describe the whole plug. The listing also gives a 45mm outside diameter and 19mm projection from the engine case. Check those dimensions against the available space and your fitted components before replacing an existing drain plug.

Keep its function in perspective

The magnet is described as collecting steel debris from the sump. That function belongs to the drain plug; the item does not supply an oil filter, pump or gauge. Plan any other oil-system parts required for the job as separate components.

Buying questions

What debris is the magnetic plug intended to collect?

The manufacturer-branded listing describes a rare-earth magnet that collects steel debris from the sump. It does not claim to diagnose engine condition or form a complete filtration system. Treat debris findings as information to assess separately.

Is matching the Honda reference enough to place the order?

Compare the reference with the actual drain opening as well as the listed thread and clearance dimensions. An altered or replaced engine component can affect the fit. Confirm the complete plug shape and available space before ordering.

Which sealing and fitting details are specified?

The listing states that the plug comes with an O-ring, uses M33.7 × 1.5mm threads and a 19mm socket fitting. It does not provide an installation torque here. Use the appropriate engine service information for the installation.

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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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