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1977 Honda CB750K Seat Locks, Hinge Pins & Rubbers

Repair the existing 1977 Honda CB750K seat mounting with the lock, lock bar, hinge pin or setting rubber it actually needs. These fittings are not a complete seat or cover. Inspect the mechanism and the seat base before choosing a replacement component.

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Currently viewing Seat Covers & Hardware

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Honda CB750 CB650 CB550 CB500 seat lock bar assembly 77220-340-003

Honda CB Seat Lock Bar Assembly ~ Replaces 77220-340-003

$54.95 USD
73-1070
Replace your seat lock bar with this Seat Lock Bar Assembly, replacing OEM #77220-340-003 / #77220-340-011.Key Features• Seat lock bar assembly• Replaces OEM #77220-340-003...
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...
Honda CB seat rubber b 77205-286-000

Honda CB Seat Rubber B ~ Replaces 77205-286-000

$7.87 USD
02-6533
Replace those worn, dried-out seat rubbers under your classic Honda with this Seat Setting Rubber "B", a direct replacement for OEM #77205-286-000. One of...
Honda CB750K seat hinge pin 77203-405-000

1977-78 Honda CB750K Seat Hinge Pin ~ Replaces 77203-405-000

$4.61 USD
73-0946
Replace your seat hinge pin with this Seat Hinge Pin, replacing OEM #77203-405-000.Note: 2 used per bike, order the quantity you require.Key Features• Seat...
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1977 Honda CB750K · Seat Covers & Hardware Buying guide

Find the worn seat fitting before buying a complete mechanism

The locking cylinder, lock bar, hinge pin and rubber support serve different purposes. Compare each with the installed part so a lost key and a worn hinge are treated as different repairs.

Parts to consider

Honda CB Seat Lock with Keys ~ Replaces 77230-399-007 Replacement keyed seat lockSupplied with keys and referenced to 77230-399-007 / 77230-107-711; projects farther than OEM.View part Honda CB Seat Lock Bar Assembly ~ Replaces 77220-340-003 Seat lock bar assemblySeparate locking-bar part referenced to 77220-340-003 and 77220-340-011.View part 1977-78 Honda CB750K Seat Hinge Pin ~ Replaces 77203-405-000 1977–78 seat hinge pinPin referenced to 77203-405-000; the description lists two used per motorcycle.View part

Related parts: Individual B-type seat support rubber

Separate locking from hinging faults

A key problem points you toward the lock, while worn hinge hardware requires inspection of the pins and their mating parts. The lock bar is listed as another assembly. Establish which component is damaged before ordering several locking parts that may not address the source of the problem.

Inspect the base and support rubbers

The seat setting rubber cushions the seat against the frame and is sold individually. Compare its reference and shape with the support being replaced. A new hinge pin or lock will not repair a damaged seat pan; assess the surrounding structure before selecting these small fittings.

Seat Covers & Hardware: buying questions

Does the replacement lock look exactly like the original?

Its listing notes that the mechanism extends slightly farther than the original type. Compare the fitted bracket and clearances before buying. The supplied keys and listed reference numbers describe the lock; identical external projection is not promised.

How many hinge pins are used?

The 1977–78 hinge pin description lists two per motorcycle, referenced to 77203-405-000. Inspect both hinge locations and order the quantity required. Do not interpret one pin listing as a complete hinge assembly.

Is upholstery included in this category selection?

The current selection is the keyed lock, lock bar, hinge pin and setting rubber. Those are fittings for the existing seat. They do not include a replacement cover, foam or complete seat assembly.

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