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1978 Honda CB750K Horn Assemblies, Buttons & Wiring

The 1978 CB750K horn route contains three different purchases: a custom sounder with bracket, a button with spring and a horn sub-harness. Identify the component needing replacement before ordering; neither the button nor the short harness is a complete horn assembly.

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Honda CB750 CB500 CB350 horn button

Honda CB750 / CB500 / CB350 Horn Button

$7.00 USD
12-0036
Replace a worn horn button with this Horn Button with Spring. Works as a horn button or a starter button, fitting all SOHC CB750s,...
Honda CB750K CB550F horn sub harness 38105-369-000

1977-78 Honda CB750K / CB550F Horn Sub Harness ~ Replaces 38105-369-000

$7.95 USD
73-0111
Replace your horn sub harness with this Horn Sub Harness, the harness that attaches to the horn. Replaces OEM #38105-369-000.Key Features• Horn sub harness•...
Honda CB750 black horn with bracket joker machine

Honda CB750 Black Horn with Bracket ~ Joker Machine

$59.95 USD
73-1065
Add a billet horn with this Joker Machine Brand Small Custom Black Horn with CNC-machined bracket and 2 gold mounting screws. This horn relocates...
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1978 Honda CB750K · Horns Buying guide

Distinguish the horn from its button and connection harness

The custom horn listing includes its bracket and screws and describes a changed mounting position. The button and horn wiring are separate service pieces. Compare the installed controls and horn connections for each choice.

Parts to consider

Honda CB750 Black Horn with Bracket ~ Joker Machine Joker Machine custom horn and bracketBlack custom horn supplied with a CNC-machined bracket and two gold mounting screws. The listing describes moving the horn to the frame centreline.View part Honda CB750 / CB500 / CB350 Horn Button Horn button with springSeparate button supplied with its spring, listed for SOHC CB750 applications. Compare the button with the control fitted to the motorcycle.View part 1977-78 Honda CB750K / CB550F Horn Sub Harness ~ Replaces 38105-369-000 1978 CB750K horn sub-harnessSeparate harness described as attaching to the horn, replacing Honda 38105-369-000. Its fitment specifically includes the 1978 CB750K.View part

Choose the custom mount as part of the horn purchase

The Joker Machine description supplies the horn, its bracket and two mounting screws and relocates it from the stock offset position to the frame centreline. Compare that arrangement with the motorcycle before deciding on a custom installation. The listing is not presented as an exact replica of the original horn.

Keep the control and wiring repair separate

The button listing describes a button with spring, while the horn sub-harness identifies the wiring that attaches to the horn. Inspect which component is actually worn or missing. Those separate descriptions help prevent buying a new sounder when the order is intended for a button or a short connection harness.

Common questions

Does the custom horn include a bracket?

Yes. Its description lists a CNC-machined bracket and two gold mounting screws with the custom black horn. It also specifies a frame-centreline mounting position, so compare that arrangement with the motorcycle before purchasing.

Is the horn sub-harness a complete main loom?

No. It is described as the harness that attaches to the horn, with Honda 38105-369-000 as its replacement reference. The model-specific main wiring harness is a separate product covering a different wiring job.

Does the button listing supply a complete horn?

The product describes a horn button with spring, not a sounder and bracket. Compare the button with the fitted control and select the separate horn assembly or connection harness only when those parts are required.

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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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