Twin Power Starter to Primary 0-Ring for Harley Big Twin 2006-2017 (Exc. M8) — Replaces H-D 27444-00Y (5 Pk)

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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 TwinPower

TwinPower engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full TwinPower lineup with fast shipping and expert fitment support — order with confidence.

Twin Power Starter to Primary 0-Ring for Harley Big Twin

Ensure a leak-free seal on your Harley-Davidson Big Twin's starter to primary drive with this premium 5-pack of 0-rings from Twin Power. Engineered to meet or exceed original equipment specifications, these 0-rings are designed for 2006-2017 Big Twin models, excluding the M8 engine platform. They directly replace Harley-Davidson part number 27444-00Y, offering a perfect fit and reliable performance.

Key Features:

  • Direct Replacement: Replaces Harley-Davidson part # 27444-00Y for a hassle-free installation.
  • Model Fitment: Specifically designed for 2006-2017 Harley-Davidson Big Twin models (excluding M8 engines). This includes popular lines like Dyna, Softail, and Touring models from those years.
  • Durable Construction: Made from high-quality materials to withstand the demanding environment of the primary drive.
  • 5-Pack Convenience: Includes five 0-rings, providing spares or allowing for multiple service intervals.
  • Prevents Leaks: Essential for maintaining proper oil levels and preventing leaks from the starter housing to the primary cover.

Proper sealing is crucial for the longevity and performance of your motorcycle's drivetrain. A worn or damaged 0-ring can lead to oil leaks, contamination, and potential damage to other components. This Twin Power 0-ring ensures a tight seal, maintaining the integrity of your primary drive system.

Keep your ride running smoothly and prevent costly repairs. Trust Twin Power for quality replacement parts that fit your Harley-Davidson perfectly. Get your 5-pack today at GGCRACING!

Vehicle Fitment

Years Make Model Trim
2012-2016 Harley-Davidson FLD Switchback Base
2007-2016 Harley-Davidson FLHR Road King Base
2007-2013 Harley-Davidson FLHRC Road King Classic Base
2007 Harley-Davidson FLHRS Road King Custom Base
2007-2009 Harley-Davidson FLHT Electra Glide Standard Base
2007-2013 Harley-Davidson FLHTC Electra Glide Classic Base
2007-2016 Harley-Davidson FLHTCU Electra Glide Ultra Classic Base
2009-2013 Harley-Davidson FLHTCUTG Tri Glide Ultra Classic 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
2007-2016 Harley-Davidson FLHX Street Glide Base
2014-2016 Harley-Davidson FLHXS Street Glide Special Base
2010 Harley-Davidson FLHXSE CVO Street Glide Base
2015-2016 Harley-Davidson FLHXSE CVO Street Glide Base
2010-2011 Harley-Davidson FLHXXX Street Glide Trike Base
2015-2016 Harley-Davidson FLRT Freewheeler Base
2012-2017 Harley-Davidson FLS Softail Slim Base
2016-2017 Harley-Davidson FLSS Softail Slim S Base
2007-2017 Harley-Davidson FLSTC Heritage Softail Classic Base
2007-2017 Harley-Davidson FLSTF Fat Boy Base
2010-2017 Harley-Davidson FLSTFB Fat Boy Lo Base
2016-2017 Harley-Davidson FLSTFBS Fat Boy S Base
2008-2011 Harley-Davidson FLSTSB Cross Bones Base
2010 Harley-Davidson FLSTSE CVO Softail Convertible Base
2007-2010 Harley-Davidson FLTR Road Glide Base
2016 Harley-Davidson FLTR Road Glide Base
2011-2013 Harley-Davidson FLTRU Road Glide Ultra Base
2016 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
2015-2016 Harley-Davidson FLTRX Road Glide Base
2010-2013 Harley-Davidson FLTRX Road Glide Custom Base
2015-2016 Harley-Davidson FLTRXS Road Glide Special Base
2012 Harley-Davidson FLTRXSE CVO Road Glide Base
2008-2009 Harley-Davidson FXCW Rocker Base
2008-2011 Harley-Davidson FXCWC Rocker C Base
2006-2010 Harley-Davidson FXD Dyna Super Glide Base
2006 Harley-Davidson FXDI Dyna Super Glide Base
2007-2009 Harley-Davidson FXDL Dyna Low Rider Base
2014-2017 Harley-Davidson FXDL Dyna Low Rider Base
2006 Harley-Davidson FXDLI Dyna Low Rider Base
2006-2008 Harley-Davidson FXDWG Dyna Wide Glide Base
2010-2017 Harley-Davidson FXDWG Dyna Wide Glide Base
2006 Harley-Davidson FXDWGI Dyna Wide Glide Base
2011-2013 Harley-Davidson FXS Blackline Base
2013-2017 Harley-Davidson FXSB Breakout Base
2013-2014 Harley-Davidson FXSBSE CVO Breakout Base
2016-2017 Harley-Davidson FXSE CVO Pro Street Breakout Base
2007-2009 Harley-Davidson FXSTB Night Train Base
2007-2010 Harley-Davidson FXSTC Softail Custom Base
2007 Harley-Davidson FXSTD Softail Deuce Base

Product Details

Product Description
Part Numbers
Sizing & Fit

About TwinPower

TwinPower engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full TwinPower lineup with fast shipping and expert fitment support — order with confidence.

Twin Power Starter to Primary 0-Ring for Harley Big Twin

Ensure a leak-free seal on your Harley-Davidson Big Twin's starter to primary drive with this premium 5-pack of 0-rings from Twin Power. Engineered to meet or exceed original equipment specifications, these 0-rings are designed for 2006-2017 Big Twin models, excluding the M8 engine platform. They directly replace Harley-Davidson part number 27444-00Y, offering a perfect fit and reliable performance.

Key Features:

  • Direct Replacement: Replaces Harley-Davidson part # 27444-00Y for a hassle-free installation.
  • Model Fitment: Specifically designed for 2006-2017 Harley-Davidson Big Twin models (excluding M8 engines). This includes popular lines like Dyna, Softail, and Touring models from those years.
  • Durable Construction: Made from high-quality materials to withstand the demanding environment of the primary drive.
  • 5-Pack Convenience: Includes five 0-rings, providing spares or allowing for multiple service intervals.
  • Prevents Leaks: Essential for maintaining proper oil levels and preventing leaks from the starter housing to the primary cover.

Proper sealing is crucial for the longevity and performance of your motorcycle's drivetrain. A worn or damaged 0-ring can lead to oil leaks, contamination, and potential damage to other components. This Twin Power 0-ring ensures a tight seal, maintaining the integrity of your primary drive system.

Keep your ride running smoothly and prevent costly repairs. Trust Twin Power for quality replacement parts that fit your Harley-Davidson perfectly. Get your 5-pack today at GGCRACING!

Vehicle Fitment

Years Make Model Trim
2012-2016 Harley-Davidson FLD Switchback Base
2007-2016 Harley-Davidson FLHR Road King Base
2007-2013 Harley-Davidson FLHRC Road King Classic Base
2007 Harley-Davidson FLHRS Road King Custom Base
2007-2009 Harley-Davidson FLHT Electra Glide Standard Base
2007-2013 Harley-Davidson FLHTC Electra Glide Classic Base
2007-2016 Harley-Davidson FLHTCU Electra Glide Ultra Classic Base
2009-2013 Harley-Davidson FLHTCUTG Tri Glide Ultra Classic 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
2007-2016 Harley-Davidson FLHX Street Glide Base
2014-2016 Harley-Davidson FLHXS Street Glide Special Base
2010 Harley-Davidson FLHXSE CVO Street Glide Base
2015-2016 Harley-Davidson FLHXSE CVO Street Glide Base
2010-2011 Harley-Davidson FLHXXX Street Glide Trike Base
2015-2016 Harley-Davidson FLRT Freewheeler Base
2012-2017 Harley-Davidson FLS Softail Slim Base
2016-2017 Harley-Davidson FLSS Softail Slim S Base
2007-2017 Harley-Davidson FLSTC Heritage Softail Classic Base
2007-2017 Harley-Davidson FLSTF Fat Boy Base
2010-2017 Harley-Davidson FLSTFB Fat Boy Lo Base
2016-2017 Harley-Davidson FLSTFBS Fat Boy S Base
2008-2011 Harley-Davidson FLSTSB Cross Bones Base
2010 Harley-Davidson FLSTSE CVO Softail Convertible Base
2007-2010 Harley-Davidson FLTR Road Glide Base
2016 Harley-Davidson FLTR Road Glide Base
2011-2013 Harley-Davidson FLTRU Road Glide Ultra Base
2016 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
2015-2016 Harley-Davidson FLTRX Road Glide Base
2010-2013 Harley-Davidson FLTRX Road Glide Custom Base
2015-2016 Harley-Davidson FLTRXS Road Glide Special Base
2012 Harley-Davidson FLTRXSE CVO Road Glide Base
2008-2009 Harley-Davidson FXCW Rocker Base
2008-2011 Harley-Davidson FXCWC Rocker C Base
2006-2010 Harley-Davidson FXD Dyna Super Glide Base
2006 Harley-Davidson FXDI Dyna Super Glide Base
2007-2009 Harley-Davidson FXDL Dyna Low Rider Base
2014-2017 Harley-Davidson FXDL Dyna Low Rider Base
2006 Harley-Davidson FXDLI Dyna Low Rider Base
2006-2008 Harley-Davidson FXDWG Dyna Wide Glide Base
2010-2017 Harley-Davidson FXDWG Dyna Wide Glide Base
2006 Harley-Davidson FXDWGI Dyna Wide Glide Base
2011-2013 Harley-Davidson FXS Blackline Base
2013-2017 Harley-Davidson FXSB Breakout Base
2013-2014 Harley-Davidson FXSBSE CVO Breakout Base
2016-2017 Harley-Davidson FXSE CVO Pro Street Breakout Base
2007-2009 Harley-Davidson FXSTB Night Train Base
2007-2010 Harley-Davidson FXSTC Softail Custom Base
2007 Harley-Davidson FXSTD Softail Deuce Base

Product Details

Product Description

About TwinPower

TwinPower engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full TwinPower lineup with fast shipping and expert fitment support — order with confidence.

Twin Power Starter to Primary 0-Ring for Harley Big Twin

Ensure a leak-free seal on your Harley-Davidson Big Twin's starter to primary drive with this premium 5-pack of 0-rings from Twin Power. Engineered to meet or exceed original equipment specifications, these 0-rings are designed for 2006-2017 Big Twin models, excluding the M8 engine platform. They directly replace Harley-Davidson part number 27444-00Y, offering a perfect fit and reliable performance.

Key Features:

  • Direct Replacement: Replaces Harley-Davidson part # 27444-00Y for a hassle-free installation.
  • Model Fitment: Specifically designed for 2006-2017 Harley-Davidson Big Twin models (excluding M8 engines). This includes popular lines like Dyna, Softail, and Touring models from those years.
  • Durable Construction: Made from high-quality materials to withstand the demanding environment of the primary drive.
  • 5-Pack Convenience: Includes five 0-rings, providing spares or allowing for multiple service intervals.
  • Prevents Leaks: Essential for maintaining proper oil levels and preventing leaks from the starter housing to the primary cover.

Proper sealing is crucial for the longevity and performance of your motorcycle's drivetrain. A worn or damaged 0-ring can lead to oil leaks, contamination, and potential damage to other components. This Twin Power 0-ring ensures a tight seal, maintaining the integrity of your primary drive system.

Keep your ride running smoothly and prevent costly repairs. Trust Twin Power for quality replacement parts that fit your Harley-Davidson perfectly. Get your 5-pack today at GGCRACING!

Vehicle Fitment

Years Make Model Trim
2012-2016 Harley-Davidson FLD Switchback Base
2007-2016 Harley-Davidson FLHR Road King Base
2007-2013 Harley-Davidson FLHRC Road King Classic Base
2007 Harley-Davidson FLHRS Road King Custom Base
2007-2009 Harley-Davidson FLHT Electra Glide Standard Base
2007-2013 Harley-Davidson FLHTC Electra Glide Classic Base
2007-2016 Harley-Davidson FLHTCU Electra Glide Ultra Classic Base
2009-2013 Harley-Davidson FLHTCUTG Tri Glide Ultra Classic 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
2007-2016 Harley-Davidson FLHX Street Glide Base
2014-2016 Harley-Davidson FLHXS Street Glide Special Base
2010 Harley-Davidson FLHXSE CVO Street Glide Base
2015-2016 Harley-Davidson FLHXSE CVO Street Glide Base
2010-2011 Harley-Davidson FLHXXX Street Glide Trike Base
2015-2016 Harley-Davidson FLRT Freewheeler Base
2012-2017 Harley-Davidson FLS Softail Slim Base
2016-2017 Harley-Davidson FLSS Softail Slim S Base
2007-2017 Harley-Davidson FLSTC Heritage Softail Classic Base
2007-2017 Harley-Davidson FLSTF Fat Boy Base
2010-2017 Harley-Davidson FLSTFB Fat Boy Lo Base
2016-2017 Harley-Davidson FLSTFBS Fat Boy S Base
2008-2011 Harley-Davidson FLSTSB Cross Bones Base
2010 Harley-Davidson FLSTSE CVO Softail Convertible Base
2007-2010 Harley-Davidson FLTR Road Glide Base
2016 Harley-Davidson FLTR Road Glide Base
2011-2013 Harley-Davidson FLTRU Road Glide Ultra Base
2016 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
2015-2016 Harley-Davidson FLTRX Road Glide Base
2010-2013 Harley-Davidson FLTRX Road Glide Custom Base
2015-2016 Harley-Davidson FLTRXS Road Glide Special Base
2012 Harley-Davidson FLTRXSE CVO Road Glide Base
2008-2009 Harley-Davidson FXCW Rocker Base
2008-2011 Harley-Davidson FXCWC Rocker C Base
2006-2010 Harley-Davidson FXD Dyna Super Glide Base
2006 Harley-Davidson FXDI Dyna Super Glide Base
2007-2009 Harley-Davidson FXDL Dyna Low Rider Base
2014-2017 Harley-Davidson FXDL Dyna Low Rider Base
2006 Harley-Davidson FXDLI Dyna Low Rider Base
2006-2008 Harley-Davidson FXDWG Dyna Wide Glide Base
2010-2017 Harley-Davidson FXDWG Dyna Wide Glide Base
2006 Harley-Davidson FXDWGI Dyna Wide Glide Base
2011-2013 Harley-Davidson FXS Blackline Base
2013-2017 Harley-Davidson FXSB Breakout Base
2013-2014 Harley-Davidson FXSBSE CVO Breakout Base
2016-2017 Harley-Davidson FXSE CVO Pro Street Breakout Base
2007-2009 Harley-Davidson FXSTB Night Train Base
2007-2010 Harley-Davidson FXSTC Softail Custom Base
2007 Harley-Davidson FXSTD Softail Deuce Base

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