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1971 Honda CB350K3 Seat Cushion Rubber

Seat setting rubber B cushions the seat against the frame. The original 1971 K3 seat uses two of this type, and the replacement is sold individually. Compare the underside of your seat before ordering, particularly if its pan or upholstery has been replaced.

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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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1971 Honda CB350K3 · Seat Cushion Rubber Buying guide

Count the B supports on the K3 seat

The available B rubber references 77205-286-000. It is one shape within the seat’s support system, so distinguish missing B pieces from other cushions or a different aftermarket pan.

Parts to consider

Honda CB Seat Rubber B ~ Replaces 77205-286-000 Seat setting rubber BSold individually; the original K3 seat uses two B rubbers.View part

Use the K3 seat count

Honda specifies two B setting rubbers for the K3 seat, alongside separate A-type supports. This replacement is sold each. An order for one supplies one B rubber, so count the damaged or missing B locations rather than the total number of cushions under the seat.

Check an altered seat before ordering

A replacement pan may use a different support layout even if its outline looks original. Compare the rubber’s attachment and contact point with the seat in front of you. Inspect the hinges, latch and other supports separately when diagnosing a seat that rocks or sits unevenly.

Buying questions

How many B rubbers does the original K3 seat use?

Two. The B rubber is sold individually, so replacing both requires a quantity of two. That count is for the original K3 seat and does not describe every rubber fitted beneath it.

Does this replace every cushion under the seat?

No. The K3 seat also has separate A-type supports. Match the missing or damaged cushion by shape and position so that a B rubber is not ordered for a different mounting point.

Will this suit an aftermarket seat pan?

Only if that pan uses the corresponding B-rubber mounting and contact arrangement. Compare those features before ordering; the motorcycle’s model year alone cannot establish how an aftermarket pan was designed.

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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