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1975 Honda CB550F Seat Locks

Restore seat access on your 1975 Honda CB550F with a replacement lock supplied with keys. Its locking mechanism projects slightly farther than the original, so check the bracket, latch alignment and available clearance before ordering for a stock or modified seat.

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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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1975 Honda CB550F · Seat Locks Buying guide

Check the seat-latch connection before replacing the lock

A missing key and a damaged latch are different problems. Inspect the lock mounting and the seat’s mating latch first, then compare the replacement mechanism and its stated references with the hardware fitted to your motorcycle.

Parts to consider

Honda CB Seat Lock with Keys ~ Replaces 77230-399-007 Replacement seat lock with keysReferences 77230-399-007 / 77230-107-711; mechanism projects slightly farther than the original.View part

Inspect the bracket and seat latch too

A replacement lock cannot correct a distorted mounting bracket or misaligned seat latch. Compare the existing hardware and check clearance for the slightly longer mechanism before ordering. This is especially useful after seat changes, repairs or custom work where the original latch arrangement may no longer be present.

Plan access if the old key is missing

If the original key is lost, the lock bracket and assembly may need to be removed to replace the lock. Check access to the mounting hardware before starting and use the appropriate service instructions. The replacement is supplied with keys for its own lock; do not assume they match another lock on the motorcycle.

Common buying questions

Are keys included with the replacement lock?

Yes, the replacement seat lock is supplied with keys. It is not described as a matching-key set for the ignition or other locks, so plan to use its supplied keys for the replacement seat lock.

Is the mechanism identical in length to the original?

The replacement mechanism projects slightly farther than the original. Compare the bracket, seat latch and surrounding clearance before ordering, particularly if the seat or its mounting has been modified during a restoration.

Will replacing the lock cure a seat that will not latch?

Check latch alignment and bracket condition before choosing a lock. A bent or altered seat mounting can prevent engagement even with a working lock; compare the complete connection and identify the failed component first.

Not sure which part you need?

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

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