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1971 Honda CB350K3 Oil Filter & Drain Parts

Service the centrifugal oil filter on your 1971 CB350K3 with the right cover parts and rotor hardware. A separate magnetic drain plug addresses the sump opening. Identify the repair location first, then compare the cover kit’s contents or the plug’s dimensions.

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Currently viewing Oil Filters, Drain Plugs, Oil Pump & Gauges

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Honda CB350K CL350K centrifugal oil filter cover assembly kit 15481-312-000

Honda CB350K / CL350K Centrifugal Oil Filter Cover Assembly Kit

$64.95 USD
15-3029
Aftermarket centrifugal oil filter cover assembly kit for the Honda CB350K and CL350K models listed below. This kit replaces the original oil filter cover...
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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 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...
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1971 Honda CB350K3 · Centrifugal Filter & Drain Parts Buying guide

Separate filter-cover work from sump-plug replacement

The centrifugal filter cover kit, angled rotor washer and magnetic sump plug serve different locations. Match the part to the work being done instead of treating them as interchangeable oil-filter service items.

Parts to consider

Honda CB Joker Machine Magnetic Oil Drain Plug ~ Replaces 90013-312-000 Joker Machine Magnetic Drain PlugBillet aluminum plug with O-ring, M33.7 × 1.5 mm thread and a 19 mm socket fitting.View part Honda CB Special Oil Filter Rotor Washer ~ Replaces 90481-292-000 Oil Filter Rotor WasherSpecial angled 16 mm washer for the centrifugal oil filter rotor, reference 90481-292-000.View part

Related parts: Centrifugal Oil Filter Cover Kit

Know what the cover kit replaces

The linked filter-cover kit supplies the cover, oil guide metal, oil guide spring, stopper and 63.5 × 2 mm O-ring. It is useful when those pieces need replacement together. The angled rotor washer is a separate internal hardware choice for work at the rotor.

Check the magnetic plug’s physical size

The Joker Machine plug includes an O-ring and uses a 19 mm socket fitting. Its body is 45 mm across and projects 19 mm from the case. Compare the M33.7 × 1.5 mm thread and surrounding clearance, especially on an engine with altered fittings.

Buying questions

Is the oil-filter cover kit a paper-filter conversion?

No. It replaces cover and oil-guide components in the existing centrifugal oil-filter assembly. Use the CB350 service manual for cleaning and servicing that system; no replaceable paper cartridge is supplied.

Does the cover kit contain the rotor washer?

The kit contains the cover, oil guide metal, spring, stopper and O-ring. The special angled 16 mm rotor washer is a separate item, so check it independently if the rotor is being dismantled.

Will the magnetic plug fit a modified sump opening?

Confirm the opening has M33.7 × 1.5 mm threads and enough clearance for the 45 mm body and 19 mm projection. A repaired or modified opening needs its own dimensional check before ordering.

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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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