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  • 1975-78 Honda CB550F / CB550K Sub Wire Harness ~ Replaces 32105-390-000
Honda CB550F CB550K sub wire harness 32105-390-000
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Honda CB550F CB550K sub wire harness 32105-390-000

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1975-78 Honda CB550F / CB550K Sub Wire Harness ~ Replaces 32105-390-000

73-0123
$29.95 USD
In stock Usually ships the same or next business day
Check model fitment View fitment
Questions about this part? Contact us 4.8/5 1,332 store reviews
Secure checkoutProtected payment
60-day returnsEligible unused parts Free ground shippingUSA & Canada over $50
Browse all parts
1975-78 Honda CB550F / CB550K Sub Wire Harness ~ Replaces 32105-390-000
$29.95 USD
Description

Replace your CB550 sub wire harness with this Sub Wire Harness (Junction Panel Harness), the sub harness on the bike that many electrical components connect to such as the fuse box, starter switch, and rectifier. Replaces OEM #32105-390-000.

Key Features
• Sub wire harness / junction panel harness
• Connects fuse box, starter switch, rectifier
• Replaces OEM #32105-390-000

Fitment / Compatibility
• Honda CB550K (1977‑78)
• CB550F (1975‑77) Supersport

Part Number: 73-0123

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

Make Model Year
Honda CB550K3 1977
Honda CB550K4 1978
Honda CB550F1 1975
Honda CB550F2 1976
Honda CB550F3 1977

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.

See full shipping details

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

What does Honda sub-harness 32105-390-000 connect?

The junction-panel sub-harness connects components including the fuse box, starter switch and rectifier on the listed CB550F and 1977-1978 CB550K applications.

Is the complete CB550 main wire harness included?

No. One sub-harness replacing Honda OEM 32105-390-000 is included; the main loom and connected electrical components are separate.

What should be inspected before installing the CB550 sub-harness?

Disconnect the battery and check mating connectors, grounds, fuse-box terminals and the rectifier area for corrosion or heat damage. Repair a high-resistance or shorted connection before applying power.

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