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1980 Honda CB750K Wiring Looms & Sub-Harnesses

This wiring group has three distinct products for the 1980 Honda CB750K: a model-specific main loom, an ignition coil sub-harness and a horn sub-harness. Decide which section needs replacement before ordering. The coil wiring listing explicitly states that it is separate from the main loom.

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Honda CB1100 CB1000 CB900 CB750 ignition coil sub-wire harness "a" 32103-438-660

Honda CB1100 / CB1000 / CB900 / CB750 Ignition Coil Sub-Wire Harness "A" ~ Replaces 32103-438-660

$13.95 USD
24-4011
Replace your ignition coil sub-harness with this Ignition Coil Sub-Wire Harness "A", replacing OEM #32103-438-660. Plugs into the main wire harness and connects to...
Honda CB900 CB750 horn sub harness "a" 32101-438-000

1979-82 Honda CB900 / CB750 Horn Sub Harness "A" ~ Replaces 32101-438-000

$14.07 USD
24-4019
Replace your horn sub-harness with this Horn Sub Harness "A", the harness that attaches to the horn, replacing OEM #32101-438-000.Key Features• Horn sub-harness "A"•...
Honda CB750K wire harness 32100-425-770

1980-82 Honda CB750K Wire Harness ~ Replaces 32100-425-770

$119.95 USD
24-4008
Replace your wire harness with this Main Wire Harness Loom, replacing OEM #32100-425-770.These fit only the model year and type listed. Other years and...
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1980 Honda CB750K · Wiring Harness Buying guide

Identify which part of the wiring needs replacement

The main loom carries the 1980–82 CB750K application. Coil and horn sub-harnesses serve smaller circuits and have their own references, making circuit identification useful before selecting the repair parts.

Parts to consider

1980-82 Honda CB750K Wire Harness ~ Replaces 32100-425-770 CB750K main wiring loomMain harness listed for the 1980–82 CB750K, replacing reference 32100-425-770. The product warns that other years and types use different looms.View part Honda CB1100 / CB1000 / CB900 / CB750 Ignition Coil Sub-Wire Harness "A" ~ Replaces 32103-438-660 Ignition coil sub-harness AConnects the main harness to the ignition coils. Reference 32103-438-660; the listing says this assembly is not included with main looms.View part 1979-82 Honda CB900 / CB750 Horn Sub Harness "A" ~ Replaces 32101-438-000 Horn sub-harness ASmall harness described as attaching to the horn, replacing reference 32101-438-000. Compare the fitted horn wiring.View part

Use the main loom’s model application precisely

The main harness page identifies the 1980–82 CB750K and reference 32100-425-770. It warns that other CB750 years and types use a different number. Compare the loom on a rebuilt motorcycle before ordering, particularly where controls or wiring may have been carried over from another model.

Keep the coil and horn wiring in the parts plan

The ignition coil sub-harness connects to the main loom but is explicitly not included with the store’s main harnesses. The horn sub-harness is another small assembly with a different reference. Inspect both circuits so a main-loom purchase is not assumed to replace every branch of the wiring.

Common questions

Does the main loom fit every 1980 Honda CB750 type?

The listing specifies the CB750K rather than every CB750 type. It also warns that model-year and type differences matter. Compare the exact application and the fitted loom instead of treating the shared engine family as a wiring-harness match.

Is the ignition coil sub-harness part of the main-loom purchase?

Its product page explicitly says it is not included with the store’s main wire harnesses. It plugs into the main harness and connects to the coils. Order it separately if that wiring also needs replacement.

Is the horn sub-harness a complete motorcycle loom?

No. Its description identifies the small harness that attaches to the horn, with reference 32101-438-000. The main motorcycle loom and ignition coil sub-harness are separate listings serving different sections of the electrical system.

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