VintageCB750 Supplying CB Riders Since 2010

About Us Why Us? Reviews Shipping Info Returns Contact Us
Wish Lists
0 My Cart

Your cart is currently empty.

Browse all parts
Total (USD): $0.00
View cart
Menu
Search
Wish
Cart 0
My motorcycle Choose your Honda CB model

Search parts

Searching all Honda CB parts

Example: brake pads or oil filter.

1978 Honda CB550K Electrical Parts

Electrical repairs on a 1978 Honda CB550K can involve a complete main loom, a small junction harness or one control assembly. Start with the part being replaced, then compare the bike’s present wiring and mounts before combining separate purchases.

Close ×
Your saved bike Choose your Honda CB model

Shop By Category

Most orders ship same or next business day Fitment guarantee Listed for your exact model and year? We’ll make it right if it doesn’t fit as described. Mechanic-backed support Ask our team for help choosing the right Honda CB part.
Currently viewing Electrical

Honda motorcycle parts

Choose your model and year to see parts listed for your bike.

Honda CB750 CB650 CB550 CB500 CB450 gb cafe headlight bracket set.

Honda CB GB Cafe Headlight Bracket Set.

$44.52 USD
09-0016
Go for the distinct GB Café aesthetic with this GB Café Headlight Bracket Set in polished aluminum. Sized for 35mm fork tubes with 11mm...
Honda CB1000 CB900 headlight adjusting screw and spring set 33103-346-670

Honda CB Headlight Adjusting Screw & Spring Set ~ Replaces 33103-346-670

$7.50 USD
29-7011
Replace your headlight adjuster with this Headlight Adjusting Screw & Spring Set. Each set includes one screw and one spring. Replaces OEM #33103-346-670 (screw)...
Sold out
Honda CB550F CB550K CB500K alternator cover gasket 11691-323-306

1971-78 Honda CB550F / CB550K / CB500K Alternator Cover Gasket ~ Replaces 11691-323-306

$9.86 USD
18-6999
Replace your CB500K or CB550 alternator cover gasket with this Alternator Cover Gasket, replacing OEM #11691-323-306.Key Features• Alternator cover gasket• Replaces OEM #11691-323-306• Honda...
Dynatek 3 ohm ignition coil set 2 Honda CB

Dynatek Performance 3 Ohm Ignition Coil Set/2

$289.00 USD
07-9980
Match your Dyna-style electronic ignition requirement with this Dynatek Performance Dual-Output 3 Ohm Ignition Coil Set of 2. Same Dynatek quality as the 5...
Honda CB550F CB550K sub wire harness 32105-390-000

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

$29.95 USD
73-0123
Replace your CB550 sub wire harness with this Sub Wire Harness (Junction Panel Harness), the sub harness on the bike that many electrical components...
Honda CB550F CB550K CB500K negative (-) battery cable 32601-323-000

1971-78 Honda CB550F / CB550K / CB500K Negative (-) Battery Cable ~ Replaces 32601-323-000

$21.95 USD
73-0106
Replace your CB500 or CB550 negative battery cable with this Negative (-) Battery Cable (ground cable), replacing OEM #32601-323-000.Key Features• Negative (-) battery cable...
Sold out
Honda CB750 CB550 CB500 CB450 stock type headlight assembly 33100-341-701

Honda CB750 / CB550 / CB500 / CB450 Stock Type Headlight Assembly ~ Replaces 33100-341-701

$199.95 USD
08-0461
Restore the classic look of your Honda with this Stock Style Headlight Assembly. Features 7" Halogen Headlight Unit, Headlight Rim & Retainer, Plastic Headlight...
Honda CB750 CB650 CB550 CB500 CB450 gb cafe headlight bracket set 34mm

Honda CB GB Cafe Headlight Bracket Set ~ 34mm

$44.52 USD
09-0017
Polished aluminum headlight bracket set designed for a clean café-style front end. Built to mount securely to 34mm fork tubes, providing a stable and...
Sold out
Honda CB750 CB650 CB550 tommaselli type headlight bracket set 35mm

Honda CB Tommaselli Type Headlight Bracket Set ~ 35mm

$39.95 USD
09-0012
Go for a classic European look with these Tommaselli-Type Headlight Brackets, sized for 35mm fork tubes and supplied with rubber mount inserts. A sharp...
Honda CB550 CB500 CB400F CB350F ignition coil set with plug caps

Ignition Coil Set with Plug Caps ~ Aftermarket Honda CB550 CB500 CB400F CB350F

$159.95 USD
24-2084
This aftermarket ignition coil set is built for the listed vintage Honda CB four-cylinder models. It replaces tired, cracked, weak, or failing original-style ignition...
New
Honda CB750 CB650 CB550 SL350K2 Honda headlight stay rubber cushion 61315-340-000

Honda CB750 / CB650 / CB550 / SL350K2 Genuine Honda 61315-340-000 Headlight Stay Rubber Cushion

$15.95 USD
99-5368
This genuine Honda headlight stay rubber cushion fits the upper headlight and fork ear mounting area on select classic Honda CB and SL models....
Honda CB750 CB550 CB450 CB400 rear turn signal rubbers pk 2 33606-371-000

Honda CB750 / CB550 / CB450 / CB400 Rear Turn Signal Rubbers Pk/2 ~ Replaces 33606-371-000

$15.95 USD
73-0834
Replace your rear turn signal rubbers with this Rear Turn Signal Rubbers Pk/2, replacing OEM #33606-371-000. These are the rubbers that go under the...
Honda CB550K wire harness 32100-404-670

1977-78 Honda CB550K Wire Harness ~ Replaces 32100-404-670

$109.95 USD
73-0128
Replace your CB550K main harness with this Main Wire Harness Loom, replacing OEM #32100-404-670.Note: this fits the model years listed. Other years of CB550...
Universal motorcycle spark plug cap VB05F

Universal Motorcycle Spark Plug Cap ~ VB05F

$9.50 USD
23-3124
Universal Motorcycle Spark Plug Cap ~ VB05F is an aftermarket part for the Honda CB applications listed in this product information. Before ordering, confirm...
View details
Honda CB750 SOHC CB500 CB550 dynatek dyna 2000 ultimate kit

Honda CB750 SOHC / CB500 / CB550 Dynatek Dyna 2000 Ultimate Kit

$1,199.00 USD
07-9992
Take the top-tier Dyna 2000 upgrade path on your SOHC CB750 or CB500/CB550 with this Dyna 2000 Digital Performance CDI Ignition Ultimate Kit. Includes...
Sold out
Honda CB500K CB550 CB750 SOHC electronic ignition kit with trigger plate, wiring harness and aluminum rotor

Electronic Ignition Kit ~ Honda CB500K / CB550 / CB750 SOHC

$229.00 USD
08-0319
Replace mechanical points and condensers with this aftermarket electronic ignition for the listed Honda SOHC four-cylinder models. Keep the original mechanical spark advancer and...
Honda CB750 SOHC CB500 CB550 dynatek dyna 2000 ignition system

Honda CB750 SOHC / CB500 / CB550 Dynatek Dyna 2000 Ignition System

$749.00 USD
07-9994
Get just the ignition module for your SOHC CB750 or CB500/CB550 with this Dyna 2000 Digital Performance CDI Ignition. The base unit for riders...
compare

1978 Honda CB550K · Electrical Buying guide

Choose the electrical assembly before ordering its companions

The selection spans wiring, lighting, ignition and charging service. Main harnesses, fuse boxes and handlebar controls have different jobs; a purchase in one section does not complete the others.

Parts to consider

1977-78 Honda CB550K Wire Harness ~ Replaces 32100-404-670 Main wiring harnessThe listing identifies a main harness for CB550K models from 1977–78, referencing 32100-404-670. Compare the present loom and its connections, especially on a rewired motorcycle.View part Honda CB750 / CB550 / CB500 / CB400 Fuse Box Assembly ~ Replaces 38200-377-305 Fuse box with coverA separate fuse-box assembly with its cover and five included fuses. Its stated CB550K application is 1977–78; it is not a complete main wiring harness.View part Honda CB750 / CB550 / CB400 Bar Switch Assembly ~ Right (Brake) Side ~ Replaces 35130-404-671 Right handlebar switchBlack brake-side switch assembly with wiring routed outside the handlebar. The listing includes the 1977–78 CB550K application; compare the actual control and wiring arrangement.View part

Related parts: Ignition switch with keys · Left switch with internal wiring · Combined regulator and rectifier

Plan by connection, not by appearance

A loom that looks tidy in a photograph still needs to match the installed connections. The main harness and sub-harness are separately listed, while the fuse box is another assembly. Record which sections remain on the motorcycle before deciding what to replace together.

Account for previous electrical changes

Custom handlebars, replacement ignition equipment and a changed battery can affect your choices. The left switch requires internal bar wiring, while the right switch runs outside. The charging selection also includes a lithium-specific regulator, so identify the installed battery rather than choosing by case appearance.

Common buying questions

Does the main harness come with a fuse box?

The main harness and complete fuse-box assembly are separate products. The fuse-box listing specifies its cover and five fuses; that does not establish their inclusion with the main loom or sub-harness.

Are the two handlebar switches wired the same way?

No. The left assembly is described for wiring inside the handlebar and has a locator pin. The right assembly routes its wiring outside; inspect your fitted bars before choosing either replacement.

Can I choose any regulator listed for this model?

Identify the battery first. One regulator listing is specifically for lithium-ion batteries and excludes lead-acid use. Compare the chosen unit’s mounting dimensions and connections with the motorcycle as it is equipped.

Not sure which part you need?

Send your model and year, plus photos of your existing part and any changes to the original setup.

Ask a fitment question
Parts categories for 1978 Honda CB550K

Your cart

×