Genuine Honda - Gas Cap Gasket - 17631-329-003 - CB125 CB77 CB350 CB400F CB450 CB550F CB750F

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Another Genuine Honda gas cap / fuel filler gasket for many of the Honda twins and fours from the 60's and 70's. This is the gasket that goes under the gas cap, it seals the gas cap to the top of the tank to prevent gas from spilling onto your tank. Be sure to check the part number and make sure it fits your bike.

Honda OEM Part Number: 17631-329-003

Fits Honda:

CL70 - 1971-1972
SL70 - 1973
XL70 - 1974-1976
XL75 - 1977-1978
CB100 - 1970-1972
CL100 - 1970-1972
CL100S - 1971-1973
SL100 - 1970-1973
XL100 - 1974-1978
CB125S -1973-1975
CL125S - 1973-1974
SL125 - 1971-1973
XL125 - 1976-1978
CA175 - 1968
CB175 - 1969-1973
CL175 - 1968-1973
SL175 - 1970-1971
XL175 - 1973-1978
XL250 - 1972-1981
CA72 - 1960-1966
CB72 - 1961-1966
CB77 - 1961-1968
CB350K - 1968-1970
CL350K - 1968-1970
XL350 - 1974-1978
CB400A 1978
CB400F 1977
CB400TI/TII 1978
CB450 - 1968-1969
CL450 - 1969
CX500 - 1978
CB550F - 1975-1977
CB550K - 1977-1978
CB750A 1978
CB750F - 1975-1978
CB750K - 1977-1978

may fit other years....

12 Reviews Hide Reviews Show Reviews

  • 5
    Great gasket

    Posted by Jack Hays on 12th Dec 2022

    The gasket was deliver fast and is perfect

  • 5
    Works well

    Posted by Hans on 27th Aug 2022

    I replaced the original cork seal with this. At first I was sceptical as it’s a bit tighter, but it works well. No complaints here.

  • 5
    gasket

    Posted by Robert Miller on 16th Jul 2021

    fits like it should

  • 5
    Gas cap gaskets

    Posted by Wayne Cooper on 15th Jul 2021

    Not installed but look good. Would buy more if needed.

  • 5
    1977 CB550F gas cap gasket

    Posted by Jesse on 25th Jan 2021

    It works

  • 4
    Got The Job Done

    Posted by Chris Gates on 19th Nov 2020

    Seems to fit but will have to wait 'till spring to see if it doesn't leak.

  • 5
    Exact replacement

    Posted by TOM H on 14th Jun 2020

    Perfect replacement for the 1975 CB550 Super Sport gasket.

  • 5
    Perfect fit

    Posted by Michael Townley on 9th Apr 2018

    This gasket fit just like it should. Very reasonably priced compared to other gaskets elsewhere. Honda part so quality is not an issue.

  • 5
    cb175...works

    Posted by Chris on 1st Dec 2017

    easy to install, worth it. a leaky gas tank seal will discourage you from filling up your tank to the top, as it will spill out fuel when you ride and the gas sloshes around. replace that seal, and get more miles per fillup!