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1978 Honda CB750F Seat Locks & Supplied Keys

A seat-lock replacement for the 1978 CB750F should be compared with the existing bracket and locking arrangement. This product supplies keys and lists two Honda references. Its mechanism projects slightly farther than the OEM type, making that description part of the fit check.

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Honda CB750 CB650 CB550 CB500 CB400 seat lock with keys 77230-399-007

Honda CB Seat Lock with Keys ~ Replaces 77230-399-007

$28.95 USD
73-0140
Restore your seat lock with this Seat Lock with Keys, replacing OEM #77230-399-007 / #77230-107-711.This seat lock works perfectly for the bikes listed; the...
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1978 Honda CB750F · Rim, Helmet & Seat Locks Buying guide

Compare the locking mechanism with the existing bracket

The extra projection is expressly noted, but no measurement is given. Compare the lock’s photograph, references and surrounding assembly before ordering; included keys do not establish matching with the motorcycle’s current ignition key.

Parts to consider

Honda CB Seat Lock with Keys ~ Replaces 77230-399-007 Seat lock supplied with keysSeat lock references 77230-399-007 and 77230-107-711. Its mechanism extends slightly farther than the OEM type; compare the existing assembly.View part

Preserve the stated difference from the original lock

The description says the locking mechanism sticks out slightly farther than the OEM type. Compare the pictured assembly with the old lock and bracket, including any changes around the seat. No dimension for that projection is provided, so do not assume an identical original profile.

Check the parts of the replacement job individually

Keys are included, and the description gives references 77230-399-007 and 77230-107-711. It does not specify a key count, ignition-key matching or a full bracket-and-fastener package. Review the existing assembly and confirm any supplied items that your particular seat-lock replacement depends on.

Common questions

Will the new keys match my existing ignition key?

The product is supplied with keys, but matching the current ignition key is not stated. Treat the lock’s references and fit as one comparison, and resolve any key-matching requirement separately before choosing it for the repair.

Is the replacement mechanism exactly the OEM profile?

The description identifies slightly farther projection than the OEM type. Compare the lock and bracket using that qualification. The product information does not provide a dimension for the difference or promise an identical profile.

Does this lock also replace a helmet-holder lock?

It is described as a seat lock with specific Honda references and Supersport fitment. A helmet-holder or rim-lock application is not established. Identify the assembly being repaired and choose the corresponding part rather than extending the seat-lock description.

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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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