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1975 Honda CB500T Seat Hardware

A rattling seat, a lost key, and a seat that will not catch are three different parts. Rubber B is the cushion. The lock is the cylinder. The bar is 77220-340-003. There is no seat cover here.

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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...
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1975 Honda CB500T · Seat Covers & Hardware Buying guide

Cushion, cylinder, or the bar

Count the seat-to-frame rubbers before you order rubber B, which is sold one at a time. Choose the lock when the key or cylinder failed. Choose the bar when the key works but the seat does not hook.

Parts to consider

Honda CB Seat Rubber B ~ Replaces 77205-286-000 Seat Rubber BSeat-to-frame cushion replacing 77205-286-000, sold one at a time. It fits a wide range of Hondas, including this era of twin. Count the rubbers under your seat and order that quantity.View part Honda CB Seat Lock with Keys ~ Replaces 77230-399-007 Seat Lock with KeysReplaces 77230-399-007 and 77230-107-711. Keys are included. The mechanism sits a little farther out than the original. A lost key means removing the lock bracket with a short 10 mm wrench or socket.View part

Rubber versus the lock

Rubber B, 77205-286-000, is the cushion between seat and frame. Hard or missing rubbers let the seat chatter, and the lock will not fix that. Order one for each cushion you remove. No fixed CB500T count is given, so use the number in your hands.

When the bar is the failed part

The lock bar assembly replaces 77220-340-003 and 77220-340-011 and fits the 1975-76 CB500T. It is the bar the cylinder moves, not the cylinder. If your key still turns and the seat will not stay down, inspect that bar before you buy another lock. If the key is missing, the lock is the part that includes new keys.

Seat hardware questions

The seat chatters on the frame. Lock or rubber?

Rubber. Seat rubber B, 77205-286-000, is the cushion under the seat. Count how many you remove and order that many, since each one is sold separately. The lock only matters when the key or the cylinder is the problem.

The new lock sits farther out. Is that expected?

Yes. This lock is made to work on these bikes, and the mechanism sticks out a bit farther than the original. It replaces 77230-399-007 and 77230-107-711 and includes keys.

The key turns but the seat pops up. What next?

Look at the lock bar, 77220-340-003 or 77220-340-011, before you replace the cylinder. The bar is what holds the seat. A worn or bent bar will not catch even when the key still works.

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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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