Fuel valve / petcock for the Honda CB400F and all other bikes that use 20mm x 1.5mm petcock threading. Has a pre-filter attached to prevent sediment from entering your carburetors. Thread it onto your tank and you're ready to ride! Has ON / OFF / RES positions.
Threading 20mm x 1.5mm
22mm hex nut.
Ribbed fuel outlet perfect size for use with either 3/16" or 1/4" fuel line.
NOTE: Always measure the outer diameter of the male threading on the gas tank prior to purchase. Honda changed the petcock threading size on some models mid year. Some models below such as the CB550 originally had 2 outlets, you will need a fuel connector to split the single fuel line into 2 lines for the carburetors.
CB400F Super Sport - 1975-1976
CB500T - 1975-1976
CB550F Super Sport - 1975-1976
CB550K - 1975-1976
CB750F Super Sport - 1975-1976
CB750K - 1975-1976
may fit other years, makes and models with matching threads...
Posted by Unknown on 2nd May 2018
Bought as a replacement for my '76 CB550Ks original leaky petcock. Installs perfectly, however doesn't align outward quite as nicely as I'd like.
Notes: - Make sure to tighten it all the way down and check it after a few rides; mine came slightly unseated and leaked a bit. Re-tightened a quarter turn, no problems since.
-Reserve height is higher than my old stock petcock. Old one used to need switched around 1/4-1/3 gallon, this one needs switched around 3/4 gallon.
Overall worth the price.
Posted by Ale on 13th Jan 2017
Great part, amazing service.
Posted by Ryan D on 19th Sep 2015
I had a trip coming up and my old petcock broke suddenly. Marty from 4 into 1 helped me find the right part and made sure that it shipped immediately. I got the new petcock in 48 hrs and it worked GREAT! Thanks a million!
Nice all metal part
Posted by Mark on 23rd Feb 2015
Original fuel valves have plastic fuel "straws" which tend to break off at inopportune times. When the plastic part breaks it is possible to run the tank dry with the valve still switched to 'ON'. Of course, when this happens and you switch to reserve....
This valve is not identical to the original, but still has a very nice OE appearance. Best of all though? The pickup tube for the main supply is metal. No more surprises!
New fuel valve
Posted by Tom Mendenhall on 5th Sep 2014
This part bolted right on and works great
Good replacement for a '75 CB400F
Posted by Unknown on 5th Sep 2014
I had been searching for a while for a replacement petcock that was cheaper than the OEM ones I found on eBay. The threading is correct, however I couldn't get the petcock to face in the right direction once screwed all the way on. So I added a thicker o-ring in addition to the ones that are included and it sit perfectly without any leaks.