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Honda CB750 CB650 CB550 side cover emblem attachment nut 90315-504-000
Sidecover emblem nut, SKU 49-0258: product photo and 1980 Honda CB750K (A) Side Cover / Spark Unit fiche with the part location highlighted. Example diagram; check listing for fitment.

Honda CB Side Cover Emblem Attachment Nut ~ Replaces 90315-504-000

49-0258
$2.50 USD

Sold individually

In stock Usually ships the same or next business day
Check model fitment View fitment
Questions about this part? Contact us 4.8/5 1,347 store reviews

$2.50 USD

Replace your side cover emblem attachment nuts with this Side Cover Emblem Attachment Nut, replacing OEM #90315-504-000.

Sold each, order the quantity you require.

Key Features
• Side cover emblem attachment nut
• Replaces OEM #90315-504-000
• Honda part name: Nut, Speed (3mm)

Fitment / Compatibility

• Honda CB750K (1979‑82), 2 used per side cover
• CB750L (1979), 2 used per side cover
• CB750C (1980‑82), 2 used per side cover


• Honda CB750SC (1982‑83), 2 used per side cover


• Honda CB650 (1982), 2 used per side cover
• CB650C (1980‑81), 2 used per side cover
• CB650SC (1982), 2 used per side cover


• Honda CB500K (1971‑73), 3 used per side cover
• CB550K (1974‑78), 3 used per side cover


• Honda CB100K (1971‑72), 2 used per side cover
• CB125S (1973‑75), 2 used per side cover

Part Number: 49-0258

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Check the listed model and year, then read any fitment notes in the description.

Honda motorcycle models and years listed for this part
Make Model Year
Honda CB750K Standard 1979
Honda CB750L Limited 1979
Honda CB750K 1980
Honda CB750C Custom 1980
Honda CB750K 1981
Honda CB750C 1981
Honda CB750K 1982
Honda CB750C 1982
Honda CB750SC Nighthawk 1982
Honda CB750SC 1983
Honda CB650 1982
Honda CB650SC Nighthawk 1982
Honda CB650C Custom 1980
Honda CB650C Custom 1981
Honda CB550K0 1974
Honda CB550K1 1975
Honda CB550K2 1976
Honda CB550K3 1977
Honda CB550K4 1978
Honda CB500K0 1971
Honda CB500K1 1972
Honda CB500K2 1973
Honda CB100K0 1970
Honda CB100K1 1971
Honda CB125S0 1973
Honda CB125S1 1974
Honda CB125S2 1975

Free ground shipping over $50

To the USA & Canada. In-stock orders usually ship from our own warehouse the same or next business day.

Estimated ground delivery after your order ships
DestinationDelivery time
USA4–7 business days
Canada2–6 business days

Ground shipping includes tracking, emailed when your order ships. Need it sooner? Express options are available at checkout.

60-day returns on eligible parts

No restocking fees. Eligible parts must be unused, uninstalled, unaltered and complete. The 60-day window starts when your order is delivered.

Electrical parts are excluded from standard returns. Check return eligibility.

Start your return below. Wait for our instructions before mailing a part back.

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Other shipping options

Canada Post Economy: Available at checkout for select small items. Allow 1–3 weeks for delivery. No tracking or insurance is included.

Outside the USA & Canada: Delivery times vary by destination and shipping method. Buyers are responsible for applicable duties, taxes and import fees. We cannot mark orders as gifts.

Frequently Asked Questions

How many side-cover emblem nuts are included?

One attachment nut replacing Honda OEM 90315-504-000 is included.

How many emblem attachment nuts are needed for both side covers?

Order four for both side covers on the listed CB750, CB650, CB100K and CB125S models, which use two per cover. Order six for both side covers on the listed CB500K and CB550K models, which use three per cover.

Why should the emblem studs be checked before tightening new nuts?

Clean the studs, start each nut by hand and tighten only enough to secure the emblem. Excess force can strip a small stud or crack the emblem or side cover.

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