Kuryakyn 1-1/4in Breather Bolts (Pair) — Fits Harley-Davidson Twin Cam

SKU: KUR9975
No reviews

About Kuryakyn Kuryakyn has been the leading aftermarket V-twin parts ...Read More

Price:
Sale price$13.99
Add To Cart
×

Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches

Product Details

Product Description
Part Numbers
Sizing & Fit

About Kuryakyn

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.

Kuryakyn 1-1/4 inch Breather Bolts for Harley-Davidson Twin Cam Engines

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.

Key Features and Benefits:

  • Designed for Twin Cam: Specifically engineered for Harley-Davidson Twin Cam engines.
  • 1-1/4 inch Size: Provides adequate venting capacity for optimal crankcase pressure management.
  • Durable Construction: Made from high-quality materials for long-lasting performance and reliability.
  • Replaces Stock Bolts: Direct replacement for OEM breather bolts, ensuring proper fitment.
  • Promotes Engine Health: Helps vent moisture and pressure, reducing the risk of oil leaks and internal engine damage.
  • Easy Installation: Simple bolt-on upgrade that can be performed with basic tools.

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.

Vehicle Fitment

Years Make Model Trim
1999-2017 Harley-Davidson FLHR Road King Base
2007-2017 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
2002 Harley-Davidson FLHRSEI Screamin Eagle Road King 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
2007-2017 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
2009-2013 Harley-Davidson FLHTCUTG Tri Glide Ultra Classic Base
2003-2006 Harley-Davidson FLHTI Electra Glide Standard Base
2015-2017 Harley-Davidson FLHTKL Ultra Limited Low Base
2014-2017 Harley-Davidson FLHTKSE CVO Limited Base
2006-2017 Harley-Davidson FLHX Street Glide Base
2014-2017 Harley-Davidson FLHXS Street Glide Special Base
2010-2012 Harley-Davidson FLHXSE CVO Street Glide Base
2015-2017 Harley-Davidson FLHXSE CVO Street Glide Base
2010-2011 Harley-Davidson FLHXXX Street Glide Trike Base
2015-2017 Harley-Davidson FLRT Freewheeler Base
2006 Harley-Davidson FLST Heritage Softail Base
1999-2017 Harley-Davidson FLSTC Heritage Softail Classic Base
2001-2006 Harley-Davidson FLSTCI Heritage Softail Classic Base
1999-2017 Harley-Davidson FLSTF Fat Boy Base
2010-2017 Harley-Davidson FLSTFB Fat Boy Lo Base
2001-2006 Harley-Davidson FLSTFI Fat Boy Base
2005-2017 Harley-Davidson FLSTN Softail Deluxe Base
2014-2015 Harley-Davidson FLSTNSE CVO Softail Deluxe Base
1999-2007 Harley-Davidson FLSTS Heritage Springer Base
2008-2011 Harley-Davidson FLSTSB Cross Bones Base
2005-2007 Harley-Davidson FLSTSC Softail Springer Classic Base
2010-2012 Harley-Davidson FLSTSE CVO Softail Convertible Base
2001-2003 Harley-Davidson FLSTSI Heritage Springer Base
1999-2013 Harley-Davidson FLTR Road Glide Base
2015-2016 Harley-Davidson FLTR Road Glide Base
1999-2006 Harley-Davidson FLTRI Road Glide Base
2009-2017 Harley-Davidson FLTRSE3 CVO Road Glide Base
2011-2017 Harley-Davidson FLTRU Road Glide Ultra Base
2011 Harley-Davidson FLTRUSE CVO Road Glide Ultra Base
2015-2016 Harley-Davidson FLTRUSE CVO Road Glide Ultra Base
2015-2017 Harley-Davidson FLTRX Road Glide Base
2010-2013 Harley-Davidson FLTRX Road Glide Custom Base
2015-2017 Harley-Davidson FLTRXS Road Glide Special Base
2012 Harley-Davidson FLTRXSE CVO Road Glide Custom Base
2008-2009 Harley-Davidson FXCW Rocker Base
2008-2011 Harley-Davidson FXCWC Rocker C Base
1999-2013 Harley-Davidson FXD Dyna Super Glide Base
2007-2017 Harley-Davidson FXDB Street Bob Base
2006 Harley-Davidson FXDBI Street Bob Base
2005 Harley-Davidson FXDC Super Glide Custom Base
2007-2014 Harley-Davidson FXDC Super Glide Custom Base
2005-2006 Harley-Davidson FXDCI Super Glide Custom Base
2008-2017 Harley-Davidson FXDF Fat Bob Base
2009-2010 Harley-Davidson FXDFSE CVO Dyna Fat Bob Base
2006 Harley-Davidson FXDI Dyna Super Glide Base
1999-2005 Harley-Davidson FXDL Dyna Low Rider Base
2007-2017 Harley-Davidson FXDL Dyna Low Rider Base

…and 19 additional fitments. Contact us to confirm yours.

Product Details

Product Description
Part Numbers
Sizing & Fit

About Kuryakyn

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.

Kuryakyn 1-1/4 inch Breather Bolts for Harley-Davidson Twin Cam Engines

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.

Key Features and Benefits:

  • Designed for Twin Cam: Specifically engineered for Harley-Davidson Twin Cam engines.
  • 1-1/4 inch Size: Provides adequate venting capacity for optimal crankcase pressure management.
  • Durable Construction: Made from high-quality materials for long-lasting performance and reliability.
  • Replaces Stock Bolts: Direct replacement for OEM breather bolts, ensuring proper fitment.
  • Promotes Engine Health: Helps vent moisture and pressure, reducing the risk of oil leaks and internal engine damage.
  • Easy Installation: Simple bolt-on upgrade that can be performed with basic tools.

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.

Vehicle Fitment

Years Make Model Trim
1999-2017 Harley-Davidson FLHR Road King Base
2007-2017 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
2002 Harley-Davidson FLHRSEI Screamin Eagle Road King 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
2007-2017 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
2009-2013 Harley-Davidson FLHTCUTG Tri Glide Ultra Classic Base
2003-2006 Harley-Davidson FLHTI Electra Glide Standard Base
2015-2017 Harley-Davidson FLHTKL Ultra Limited Low Base
2014-2017 Harley-Davidson FLHTKSE CVO Limited Base
2006-2017 Harley-Davidson FLHX Street Glide Base
2014-2017 Harley-Davidson FLHXS Street Glide Special Base
2010-2012 Harley-Davidson FLHXSE CVO Street Glide Base
2015-2017 Harley-Davidson FLHXSE CVO Street Glide Base
2010-2011 Harley-Davidson FLHXXX Street Glide Trike Base
2015-2017 Harley-Davidson FLRT Freewheeler Base
2006 Harley-Davidson FLST Heritage Softail Base
1999-2017 Harley-Davidson FLSTC Heritage Softail Classic Base
2001-2006 Harley-Davidson FLSTCI Heritage Softail Classic Base
1999-2017 Harley-Davidson FLSTF Fat Boy Base
2010-2017 Harley-Davidson FLSTFB Fat Boy Lo Base
2001-2006 Harley-Davidson FLSTFI Fat Boy Base
2005-2017 Harley-Davidson FLSTN Softail Deluxe Base
2014-2015 Harley-Davidson FLSTNSE CVO Softail Deluxe Base
1999-2007 Harley-Davidson FLSTS Heritage Springer Base
2008-2011 Harley-Davidson FLSTSB Cross Bones Base
2005-2007 Harley-Davidson FLSTSC Softail Springer Classic Base
2010-2012 Harley-Davidson FLSTSE CVO Softail Convertible Base
2001-2003 Harley-Davidson FLSTSI Heritage Springer Base
1999-2013 Harley-Davidson FLTR Road Glide Base
2015-2016 Harley-Davidson FLTR Road Glide Base
1999-2006 Harley-Davidson FLTRI Road Glide Base
2009-2017 Harley-Davidson FLTRSE3 CVO Road Glide Base
2011-2017 Harley-Davidson FLTRU Road Glide Ultra Base
2011 Harley-Davidson FLTRUSE CVO Road Glide Ultra Base
2015-2016 Harley-Davidson FLTRUSE CVO Road Glide Ultra Base
2015-2017 Harley-Davidson FLTRX Road Glide Base
2010-2013 Harley-Davidson FLTRX Road Glide Custom Base
2015-2017 Harley-Davidson FLTRXS Road Glide Special Base
2012 Harley-Davidson FLTRXSE CVO Road Glide Custom Base
2008-2009 Harley-Davidson FXCW Rocker Base
2008-2011 Harley-Davidson FXCWC Rocker C Base
1999-2013 Harley-Davidson FXD Dyna Super Glide Base
2007-2017 Harley-Davidson FXDB Street Bob Base
2006 Harley-Davidson FXDBI Street Bob Base
2005 Harley-Davidson FXDC Super Glide Custom Base
2007-2014 Harley-Davidson FXDC Super Glide Custom Base
2005-2006 Harley-Davidson FXDCI Super Glide Custom Base
2008-2017 Harley-Davidson FXDF Fat Bob Base
2009-2010 Harley-Davidson FXDFSE CVO Dyna Fat Bob Base
2006 Harley-Davidson FXDI Dyna Super Glide Base
1999-2005 Harley-Davidson FXDL Dyna Low Rider Base
2007-2017 Harley-Davidson FXDL Dyna Low Rider Base

…and 19 additional fitments. Contact us to confirm yours.

Product Details

Product Description

About Kuryakyn

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.

Kuryakyn 1-1/4 inch Breather Bolts for Harley-Davidson Twin Cam Engines

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.

Key Features and Benefits:

  • Designed for Twin Cam: Specifically engineered for Harley-Davidson Twin Cam engines.
  • 1-1/4 inch Size: Provides adequate venting capacity for optimal crankcase pressure management.
  • Durable Construction: Made from high-quality materials for long-lasting performance and reliability.
  • Replaces Stock Bolts: Direct replacement for OEM breather bolts, ensuring proper fitment.
  • Promotes Engine Health: Helps vent moisture and pressure, reducing the risk of oil leaks and internal engine damage.
  • Easy Installation: Simple bolt-on upgrade that can be performed with basic tools.

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.

Vehicle Fitment

Years Make Model Trim
1999-2017 Harley-Davidson FLHR Road King Base
2007-2017 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
2002 Harley-Davidson FLHRSEI Screamin Eagle Road King 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
2007-2017 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
2009-2013 Harley-Davidson FLHTCUTG Tri Glide Ultra Classic Base
2003-2006 Harley-Davidson FLHTI Electra Glide Standard Base
2015-2017 Harley-Davidson FLHTKL Ultra Limited Low Base
2014-2017 Harley-Davidson FLHTKSE CVO Limited Base
2006-2017 Harley-Davidson FLHX Street Glide Base
2014-2017 Harley-Davidson FLHXS Street Glide Special Base
2010-2012 Harley-Davidson FLHXSE CVO Street Glide Base
2015-2017 Harley-Davidson FLHXSE CVO Street Glide Base
2010-2011 Harley-Davidson FLHXXX Street Glide Trike Base
2015-2017 Harley-Davidson FLRT Freewheeler Base
2006 Harley-Davidson FLST Heritage Softail Base
1999-2017 Harley-Davidson FLSTC Heritage Softail Classic Base
2001-2006 Harley-Davidson FLSTCI Heritage Softail Classic Base
1999-2017 Harley-Davidson FLSTF Fat Boy Base
2010-2017 Harley-Davidson FLSTFB Fat Boy Lo Base
2001-2006 Harley-Davidson FLSTFI Fat Boy Base
2005-2017 Harley-Davidson FLSTN Softail Deluxe Base
2014-2015 Harley-Davidson FLSTNSE CVO Softail Deluxe Base
1999-2007 Harley-Davidson FLSTS Heritage Springer Base
2008-2011 Harley-Davidson FLSTSB Cross Bones Base
2005-2007 Harley-Davidson FLSTSC Softail Springer Classic Base
2010-2012 Harley-Davidson FLSTSE CVO Softail Convertible Base
2001-2003 Harley-Davidson FLSTSI Heritage Springer Base
1999-2013 Harley-Davidson FLTR Road Glide Base
2015-2016 Harley-Davidson FLTR Road Glide Base
1999-2006 Harley-Davidson FLTRI Road Glide Base
2009-2017 Harley-Davidson FLTRSE3 CVO Road Glide Base
2011-2017 Harley-Davidson FLTRU Road Glide Ultra Base
2011 Harley-Davidson FLTRUSE CVO Road Glide Ultra Base
2015-2016 Harley-Davidson FLTRUSE CVO Road Glide Ultra Base
2015-2017 Harley-Davidson FLTRX Road Glide Base
2010-2013 Harley-Davidson FLTRX Road Glide Custom Base
2015-2017 Harley-Davidson FLTRXS Road Glide Special Base
2012 Harley-Davidson FLTRXSE CVO Road Glide Custom Base
2008-2009 Harley-Davidson FXCW Rocker Base
2008-2011 Harley-Davidson FXCWC Rocker C Base
1999-2013 Harley-Davidson FXD Dyna Super Glide Base
2007-2017 Harley-Davidson FXDB Street Bob Base
2006 Harley-Davidson FXDBI Street Bob Base
2005 Harley-Davidson FXDC Super Glide Custom Base
2007-2014 Harley-Davidson FXDC Super Glide Custom Base
2005-2006 Harley-Davidson FXDCI Super Glide Custom Base
2008-2017 Harley-Davidson FXDF Fat Bob Base
2009-2010 Harley-Davidson FXDFSE CVO Dyna Fat Bob Base
2006 Harley-Davidson FXDI Dyna Super Glide Base
1999-2005 Harley-Davidson FXDL Dyna Low Rider Base
2007-2017 Harley-Davidson FXDL Dyna Low Rider Base

…and 19 additional fitments. Contact us to confirm yours.

DRIVERS Also Bought

Recently viewed