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Your cart is empty.The Kuryakyn 9927 breather bolt provides a replacement piece for your motorcycle crankcase breather hose. Using the breather bolt you can install new or replacement breather components, allowing you to maintain your motorcycle condition. Durable designed in silver. Includes (2) 1/2"-13 x 1" breather bolt for Twin Cam; suggested for installation (not included): original breather hose instruction manual. The Kuryakyn 9927 breather bolt is compatible with Harley-Davidson models: '93-'99 Evolution Big Twin and '91-'19 XL.
Mike F.
2025-09-05 14:42:47
The bolts was too short . I need another bolt that's is longer. An inch longer.Can someone contact me? Please it's about the 2 bolts I have are too short. Do you have them that are longer it should be about 1.5 inch to 2. Inches. To be able to go through the the breather the bolt is hollow and has a hose fitting on the end. But this one is way too short.
Joseph Gagne
2025-09-01 16:18:15
The product works as described. However, be sure to clean the threads inside the bike of any oil. I would also suggest adding a drop of blue loctite. I had mine back out after 20 miles. And after reading some fourms it's common
Kindle Customer
2025-08-08 17:58:53
I have a 02 dyna low with a Arlen Ness air cleaner. These bolts worked great, I did have to grind the ring around it down because my bolts are recessed into the air cleaner, but there the right threads and fit perfect. Now I just gotta get some tubing to route down the frame and keep that nasty oil out of my jugs
mike diquattro
2025-07-23 12:49:01
Good quality
Doc
2025-07-14 16:13:49
It was a very well made product and I did get another set directly from the manufacturers however (the product itself I give 5 stars) however it was listed as the correct size and after 2 attempts at correcting it they continued to send the exact same(wrong) size. I believe they fixed the issue. Otherwise I would give 5 stars. Great part. Works exactly as designed
Pogmhon657
2025-06-05 18:43:53
I was looking to make a breather bypass with a catch can. Youtube videos showed people drilling and tapping into their backing plate. Replacing the breather bolts with these did the same thing with no drilling and is reversable.
Dirk
2025-05-08 18:32:10
This product does not fit twin cam 88B. Diameter is too large and is shorter in length.
JP
2025-01-08 17:20:22
I bought them to do some custom stuff (long story, but it ends with me cutting these in half to make something for my Harley). But needless to say, the threads are right and they are indeed longer.Its a bolt with a hole through it. It is what is advertised.
Greg
2025-01-03 17:54:28
The breather bolt nipple would be nice if they came in different sizes so you could adapt the diameter size hose you want to use but besides that they work good ðŸ‘
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