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Kuryakyn has been the leading aftermarket V-twin parts brand since 1989 — chrome and black accessories for Harley-Davidson and Indian Motorcycle. From the iconic ISO grips to LED highway pegs and bagger upgrades.
Properly manage crankcase pressure in your Harley-Davidson Twin Cam engine with this pair of 1-1/4 inch Breather Bolts from Kuryakyn. These bolts are designed to replace the stock breather bolts, offering a more robust solution for venting excess pressure and moisture from the crankcase. Ensuring your engine breathes correctly is crucial for performance, longevity, and preventing oil leaks.
Crankcase pressure can build up due to combustion blow-by and normal engine operation. If not properly vented, this pressure can force oil past seals and gaskets, leading to leaks and potential engine damage. Kuryakyn's breather bolts provide an effective solution by allowing these gases to escape. This pair ensures you have the necessary components to upgrade both sides of your engine's venting system.
Whether you're performing routine maintenance or a performance upgrade, these breather bolts are a valuable addition to your Harley-Davidson Twin Cam. Ensure your engine operates at its best by providing it with the proper ventilation it needs.
Get your Kuryakyn 1-1/4 inch Breather Bolts today at GGCRACING and keep your Twin Cam running strong.
…and 19 additional fitments. Contact us to confirm yours.
| Brand | Kuryakyn |
|---|---|
| Manufacturer part number | 9975 |
| GGC SKU | KUR9975 |
| UPC / GTIN | 191209008468 |
Use the manufacturer part number when you compare with other listings or ask us to confirm a match.
| Box size | 3.4 × 2.7 × 0.8 in |
|---|---|
| Shipping weight | 0.1 lb |
| Year | Make | Model | Trim |
|---|---|---|---|
| 1999-2016 | Harley-Davidson | FLHR Road King | Base |
| 2007-2013 | Harley-Davidson | FLHRC Road King Classic | Base |
| 1999-2006 | Harley-Davidson | FLHRCI Road King Classic | Base |
| 2000-2006 | Harley-Davidson | FLHRI Road King | Base |
| 2004-2007 | Harley-Davidson | FLHRS Road King Custom | Base |
| 2003 | Harley-Davidson | FLHRSEI2 Screamin Eagle Road King 2 | Base |
| 1999-2009 | Harley-Davidson | FLHT Electra Glide Standard | Base |
| 1999-2005 | Harley-Davidson | FLHTC Electra Glide Classic | Base |
| 2007-2013 | Harley-Davidson | FLHTC Electra Glide Classic | Base |
| 1999-2006 | Harley-Davidson | FLHTCI Electra Glide Classic | Base |
| 2007-2016 | Harley-Davidson | FLHTCU Electra Glide Ultra Classic | Base |
| 1999-2006 | Harley-Davidson | FLHTCUI Electra Glide Ultra Classic | Base |
| 2015-2016 | Harley-Davidson | FLHTCUL Electra Glide Ultra Classic Low | Base |
| 2009 | Harley-Davidson | FLHTCUSE4 CVO Ultra Classic Electra Glide | Base |
| 2010 | Harley-Davidson | FLHTCUSE5 CVO Ultra Classic Electra Glide | Base |
| 2011 | Harley-Davidson | FLHTCUSE6 CVO Ultra Classic Electra Glide | Base |
| 2012 | Harley-Davidson | FLHTCUSE7 CVO Ultra Classic Electra Glide | Base |
| 2013 | Harley-Davidson | FLHTCUSE8 CVO Ultra Classic Electra Glide | Base |
| 2009-2016 | Harley-Davidson | FLHTCUTG Tri Glide Ultra | Base |
| 2009-2013 | Harley-Davidson | FLHTCUTG Tri Glide Ultra Classic | Base |
| 2003-2006 | Harley-Davidson | FLHTI Electra Glide Standard | Base |
| 2010-2016 | Harley-Davidson | FLHTK Ultra Limited | Base |
| 2015-2016 | Harley-Davidson | FLHTKL Ultra Limited Low | Base |
| 2014-2016 | Harley-Davidson | FLHTKSE CVO Limited | Base |
| 2006-2016 | Harley-Davidson | FLHX Street Glide | Base |
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