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1972 Honda CB350K4 Steering Bearings & Hardware

A K4 steering repair may need bearings, fork top bridge washers or the stem’s visible fasteners. Identify the source of wear before ordering. The tapered bearing kit is a conversion option; the washer pair and chrome nut address separate mounting details.

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Honda CB1000 CB900 CB750 CB550 chrome steering stem nut 90304-415-000

Honda CB Chrome Steering Stem Nut ~ Replaces 90304-415-000

$9.95 USD
49-0786
Replace your steering stem nut with this Chrome Steering Stem Nut, hex nut size 30mm, replacing OEM #90304-415-000.Sold each. We also offer the matching...
Honda CB750 CB550 front fork top bridge triple tree washer kit 53235-300-000

Honda CB Front Fork Top Bridge / Triple Tree Washer Kit ~ Replaces 53235-300-000

$12.50 USD
73-0833
Avoid broken triple trees with this Front Fork Top Bridge / Triple Tree Washer Kit of 2 washers. These washers are needed in order...
Honda CB1000 CB900 CB750 CB550 steering stem washer 90503-283-000

Honda CB Steering Stem Washer ~ Replaces 90503-283-000

$3.50 USD
49-0787
Replace your steering stem washer with this Chrome Steering Stem Washer, replacing OEM #90503-283-000.Sold each, order the quantity you require.Key Features• Chrome steering stem...
Honda CB750 CB650 CB550 CB450 CB400 steering bearing kit (2)

Honda CB Steering Bearing Kit (2)

$69.95 USD
28-2011
Upgrade your steering bearings with this Steering Bearing Kit. Tapered roller steering bearing conversion kit, superior to OEM quality with 10X the contact area...
Honda CB750 CB650 CB550 CB450 CB400 steering bearing kit

Honda CB Steering Bearing Kit

$69.95 USD
28-2011
Upgrade your steering bearings with this Steering Bearing Kit. Tapered roller steering bearing conversion kit, superior to OEM quality with 10X the contact area...
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Honda CB750 CB550 black steering stem nut joker machine 90304-415-000

Honda CB Black Steering Stem Nut ~ Joker Machine ~ Replaces 90304-415-000

$47.95 USD
12-0073
Dress up your steering stem with this Joker Machine Black Steering Stem Nut, 30mm hex, replacing OEM #90304-415-000. High-quality CNC-machined and made in the...
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1972 Honda CB350K4 · Steering Bearings & Hardware Buying guide

Separate bearing work from bridge hardware

Steering bearings, top bridge washers and the stem nut occupy different positions. Build the order from the inspected assembly instead of treating a bearing kit as a complete hardware package.

Parts to consider

Honda CB Steering Bearing Kit (2) Tapered steering bearing kitTapered-roller conversion kit with upper and lower bearing races; listed for the CB350K and made in Japan.View part Honda CB Front Fork Top Bridge / Triple Tree Washer Kit ~ Replaces 53235-300-000 Top bridge washer pairTwo washers replacing 53235-300-000 for the fork top bridge; includes the 1972 CB350K application.View part Honda CB Chrome Steering Stem Nut ~ Replaces 90304-415-000 Chrome steering stem nutReplacement for 90304-415-000 with a 30mm hex. Sold individually; matching washer is separate.View part

Related parts: Separate steering stem washer

Plan the tapered-bearing conversion

The kit includes upper and lower tapered bearing races and lists the CB350K application. Inspect the existing steering assembly before purchase, particularly on a modified front end. Follow the kit and service instructions for installation and adjustment rather than assuming a nut change sets the bearings correctly.

Choose fasteners by their position

The chrome stem nut has a 30mm hex and is supplied individually. Its matching washer is a separate linked item. The two top bridge washers serve the fork-clamp arrangement, so keep them distinct from the washer beneath the steering stem nut.

Buying questions

Does the chrome stem nut include its washer?

The nut is sold individually and the matching steering stem washer is a separate product. Inspect both before ordering so the repair includes the pieces actually needed.

How many top bridge washers are supplied?

The top bridge kit contains two washers replacing 53235-300-000. Match their position to the K4 fork top bridge; they are different from the separate stem-nut washer.

Are the two steering bearing listings different kits?

Both current listings use the same part number and describe the same tapered conversion with upper and lower races. There is no verified mechanical distinction to justify buying both for one repair.

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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