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1974 Honda CL450K6 Steering & Fork-Top Hardware

Hardware near the top of a 1974 Honda CL450K6 fork can serve several different purposes. Identify the steering stem nut, its separate washer, the top-bridge washers and the cap O-rings by their actual positions before deciding which pieces need replacement.

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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 CB500 CB450 CB400 fork cap o-ring (set 2) 94608-50000

Honda CB Fork Cap O-Ring (Set/2)

$2.95 USD
49-0790
Replace your fork cap O-rings with this Fork Cap O-Ring Set of 2, replacing OEM #94608-50000 (qty 2).Key Features• Fork cap O-rings• Set of...
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...
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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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1974 Honda CL450K6 · Steering & Fork-Top Hardware Buying guide

Sort the fork-top hardware by its fastening position

The chrome stem nut is sold each and its matching washer is separate. Top-bridge washers and fork-cap O-rings are two-piece sets, so compare location and reference before combining them into a repair order.

Parts to consider

Honda CB Chrome Steering Stem Nut ~ Replaces 90304-415-000 Chrome stem nutChrome steering stem nut supplied individually, reference 90304-415-000. Its 30mm dimension describes the external hex.View part Honda CB Steering Stem Washer ~ Replaces 90503-283-000 Chrome stem washerSeparate chrome steering washer, reference 90503-283-000. Sold each; compare the washer with the retained steering assembly.View part

Related parts: Two top-bridge washers · Two fork-cap O-rings · Black Joker Machine steering nut

Choose the nut and washer as separate pieces

The chrome stem nut carries reference 90304-415-000 and has a 30mm external hex. The separately sold chrome washer carries 90503-283-000. Check both against the retained steering assembly; the visible hex dimension does not specify the nut’s thread diameter or pitch.

Keep the bridge and cap service items distinct

The linked top-bridge kit supplies two washers under reference 53235-300-000; the linked cap-seal set supplies two O-rings under 94608-50000. The linked black steering nut offers another finish at reference 90304-415-000 and also uses a 30 mm hex. Keep each part tied to its own position.

Ordering questions

Does the 30mm nut dimension tell me which thread it will fit?

That number describes the external hex. Use reference 90304-415-000 and the actual steering assembly for comparison, then establish the required thread separately if the stem has changed; no thread pitch is provided.

Which washers are included with the chrome stem nut?

The stem nut is sold individually, with a matching washer offered separately. The distinct top-bridge kit contains two washers under reference 53235-300-000, so identify the washer position before selecting either product.

How do I choose seals when replacement fork caps are fitted?

Identify the fitted caps and confirm their required seal matches reference 94608-50000. The available package supplies two O-rings; that contents count does not establish which seals a non-original cap assembly needs.

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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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