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Author Topic: help with tank petcock  (Read 62 times)

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Offline hondo_74

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help with tank petcock
« on: January 22, 2026, 05:50:34 PM »
picked up a 71 CB500 and just had the tank painted.  forgot to take off the petcock and trying to find a replacement,  pretty sure its not a 71 tank. Any ideas on a dual fuel threaded petcock part no for this?
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Offline HondaMan

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Re: help with tank petcock
« Reply #1 on: January 22, 2026, 06:20:08 PM »
That's a 550K0/1 type tank: Honda's petcock includes a fuel filter that fits up in the hole. It is:
16950-374-671
Honda says they don't make it anymore, but you can try eBay, David Silver Spares, Common Motor, or even places like PartsNmore.com, there's a lot of those out there, still.

There's also the petcock by itself:
16951-374-671
and the fuel screen by it's self, which is still a current Honda part:
16952-341-671
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See SOHC4shop.com for info about the gadgets I make for these bikes.

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Offline hondo_74

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Re: help with tank petcock
« Reply #2 on: January 22, 2026, 06:27:58 PM »
thank you for the help
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Offline newday777

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Re: help with tank petcock
« Reply #3 on: January 22, 2026, 07:54:54 PM »
Welcome aboard the forum hondo_74 from NH
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Stu
Honda Parts manager in the mid 1970s Nashua Honda
My current rides
1975 K5 Planet Blue my summer ride, it was a friend's bike I worked with at the Honda shop in 76, lots of fun to be on it again
1976 K6 Anteres Red rebuilding project, was originally my brother's that I set up from the crate, it'll breath again soon!
Project 750s, 1 K2, 4 K6, 1 K8, 1 F1, 1 F3
2008 GL1800 my daily ride and cross country runner

Prior bikes....
1972 Suzuki GT380 I had charge of it for a year in 1973 while my friend was deployed and learned to love street riding....
New CB450 K7 after my friend returned...
New CB750 K5 Planet Blue, demise by ex cousin in law at 9,000 miles...
New CB750 K6 Anteres Red, to replace the totaled K5, I sold this K6 at 45k in 1983, I had heavily modified it, many great memories on it and have missed it greatly.....
1983 GL1100A, 1999 GL1500 SE, 1999 GL1500A

Offline BenelliSEI

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Re: help with tank petcock
« Reply #4 on: Today at 05:50:19 AM »
Stu…… That sure looks like the same size nipple on the tank as a 1977-78 Honda cb750. I wonder if they are the same?
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