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1981 Honda CB750F Main Loom & Sub-Harnesses

The wiring choice is between the CB750F main harness and two smaller assemblies identified for coils and horn. Locate the damaged section before choosing. The coil sub-harness has an explicit main-loom exclusion, so a complete-looking main harness should not replace the individual contents checks.

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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 CB750F wire harness 32100-445-770

1980-82 Honda CB750F Wire Harness ~ Replaces 32100-445-770

$139.95 USD
24-4009
Replace your wire harness with this Main Wire Harness Loom, replacing OEM #32100-445-770.These fit only the model year and type listed. Other years and...
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1981 Honda CB750F · Wiring Harnesses Buying guide

Choose the main loom or the specific branch that needs replacement

The main harness, coil branch and horn branch are separate wiring assemblies with different Honda references. Identify the section involved and compare the fitted connections before ordering, especially where previous modifications have changed the loom.

Parts to consider

1980-82 Honda CB750F Wire Harness ~ Replaces 32100-445-770 CB750F main wiring loom24-4009 replaces Honda 32100-445-770 and is listed for the 1980–82 CB750F.View part Honda CB1100 / CB1000 / CB900 / CB750 Ignition Coil Sub-Wire Harness "A" ~ Replaces 32103-438-660 Ignition-coil sub-harness A24-4011 replaces Honda 32103-438-660 and connects the main harness to the coils.View part 1979-82 Honda CB900 / CB750 Horn Sub Harness "A" ~ Replaces 32101-438-000 Horn sub-harness A24-4019 replaces Honda 32101-438-000 and attaches to the horn.View part

Keep the two A sub-harnesses identified

The shared A suffix does not describe the same branch: 24-4011 serves the ignition coils, while 24-4019 serves the horn. Use the replacement reference and the actual connections to identify the smaller assembly needed.

Compare a modified loom before choosing a replacement

A previous engine, switch or connector change can affect the wiring that remains on the motorcycle. Compare those retained connections with the selected assembly rather than choosing only from a general CB750 label.

Common questions

Can I use the main loom offered for the 1979 CB750F?

The two listings are model-year specific: 24-4013 replaces Honda 32100-445-670 for the 1979 CB750F; 24-4009 replaces 32100-445-770 for the 1980–82 CB750F. Choose the latter for the listed 1981 application and check any modifications before ordering.

Does the main loom include the ignition-coil branch?

No. Ignition-coil sub-harness A, 24-4011 / Honda 32103-438-660, is explicitly excluded from the store’s main-harness packages. Order that branch separately if it also needs replacement; a usable existing branch does not need to be duplicated.

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