TwinPower 5-Pack Starter-to-Primary O-Ring, 2006–2017 Big Twin, Part 043273

Twin Power™ starter to primary O-ring replaces H-D 27444-00Y for 2006-2017 Big Twins excluding M8 models, sold as a 5-pack for reliable sealing.

• Direct OEM replacement prevents oil leaks between starter and primary cover on Twin Cam engines
• High-quality rubber O-ring ensures proper compression and long-term sealing under vibration
• 5-pack provides spares for multiple rebuilds or service intervals
• Excludes Milwaukee-Eight™

The TwinPower starter-to-primary O-ring is a replacement sealing component for selected 2006–2017 Harley-Davidson Big Twin applications, excluding Milwaukee-Eight models. It replaces Harley-Davidson part number 27444-00Y and is designed to help prevent oil leaks between the starter and primary cover on Twin Cam engines. This package contains five O-rings for service, rebuilding, or replacement needs.

Made from high-quality rubber, the O-ring provides proper compression and long-term sealing performance in applications subject to engine vibration. Fitment includes the 2007 Harley-Davidson FLHX Street Glide; 2008 Harley-Davidson FLHX Street Glide, FLSTSB Cross Bones, FXCW Rocker, and FXCWC Rocker C; and 2009 Harley-Davidson FLHTCUTG Tri Glide Ultra Classic, FLHX Street Glide, FLSTSB Cross Bones, FXCW Rocker, and FXCWC Rocker C. Verify the motorcycle model and year before installation.

Manufacturer part number: 043273. Vendor part number: 27444-00Y replacement. This TwinPower O-ring kit is not compatible with Milwaukee-Eight models.

Features:

• Brand: TwinPower
• Application: Starter-to-primary sealing on selected 2006–2017 Harley-Davidson Big Twin models
• Replacement: Replaces Harley-Davidson part number 27444-00Y
• Material: High-quality rubber construction
• Function: Helps prevent oil leaks between the starter and primary cover on Twin Cam engines
• Package: Five O-rings
• Exclusion: Not compatible with Milwaukee-Eight models
• Fitment: Includes specified Harley-Davidson FLHX Street Glide, FLHTCUTG Tri Glide Ultra Classic, FLSTSB Cross Bones, FXCW Rocker, and FXCWC Rocker C applications

Air Freight Prohibited: false
Not Carb Approved: false
Ltl Freight Required: false
Prop 65: Unknown
Part Type: powersports
Epa: N/A
Carb Acknowledgement Required: false
Regular Stock: t
Units Per Sku: 1
Fitment:
2006 Harley Davidson FXD Dyna Super Glide Base
2006 Harley Davidson FXDI Dyna Super Glide Base
2006 Harley Davidson FXDLI Dyna Low Rider Base
2006 Harley Davidson FXDWG Dyna Wide Glide Base
2006 Harley Davidson FXDWGI Dyna Wide Glide Base
2007 Harley Davidson FLHR Road King Base
2007 Harley Davidson FLHRC Road King Classic Base
2007 Harley Davidson FLHRS Road King Custom Base
2007 Harley Davidson FLHT Electra Glide Standard Base
2007 Harley Davidson FLHTC Electra Glide Classic Base
2007 Harley Davidson FLHTCU Electra Glide Ultra Classic Base
2007 Harley Davidson FLHX Street Glide Base
2007 Harley Davidson FLSTC Heritage Softail Classic Base
2007 Harley Davidson FLSTF Fat Boy Base
2007 Harley Davidson FLTR Road Glide Base
2007 Harley Davidson FXD Dyna Super Glide Base
2007 Harley Davidson FXDL Dyna Low Rider Base
2007 Harley Davidson FXDWG Dyna Wide Glide Base
2007 Harley Davidson FXSTB Night Train Base
2007 Harley Davidson FXSTC Softail Custom Base
2007 Harley Davidson FXSTD Softail Deuce Base
2008 Harley Davidson FLHR Road King Base
2008 Harley Davidson FLHRC Road King Classic Base
2008 Harley Davidson FLHT Electra Glide Standard Base
2008 Harley Davidson FLHTC Electra Glide Classic Base
2008 Harley Davidson FLHTCU Electra Glide Ultra Classic Base
2008 Harley Davidson FLHX Street Glide Base
2008 Harley Davidson FLSTC Heritage Softail Classic Base
2008 Harley Davidson FLSTF Fat Boy Base
2008 Harley Davidson FLSTSB Cross Bones Base
2008 Harley Davidson FLTR Road Glide Base
2008 Harley Davidson FXCW Rocker Base
2008 Harley Davidson FXCWC Rocker C Base
2008 Harley Davidson FXD Dyna Super Glide Base
2008 Harley Davidson FXDL Dyna Low Rider Base
2008 Harley Davidson FXDWG Dyna Wide Glide Base
2008 Harley Davidson FXSTB Night Train Base
2008 Harley Davidson FXSTC Softail Custom Base
2009 Harley Davidson FLHR Road King Base
2009 Harley Davidson FLHRC Road King Classic Base
2009 Harley Davidson FLHT Electra Glide Standard Base
2009 Harley Davidson FLHTC Electra Glide Classic Base
2009 Harley Davidson FLHTCU Electra Glide Ultra Classic Base
2009 Harley Davidson FLHTCUTG Tri Glide Ultra Classic Base
2009 Harley Davidson FLHX Street Glide Base
2009 Harley Davidson FLSTC Heritage Softail Classic Base
2009 Harley Davidson FLSTF Fat Boy Base
2009 Harley Davidson FLSTSB Cross Bones Base
2009 Harley Davidson FLTR Road Glide Base
2009 Harley Davidson FXCW Rocker Base
2009 Harley Davidson FXCWC Rocker C Base
2009 Harley Davidson FXD Dyna Super Glide Base
2009 Harley Davidson FXDL Dyna Low Rider Base
2009 Harley Davidson FXSTB Night Train Base
2009 Harley Davidson FXSTC Softail Custom Base
2010 Harley Davidson FLHR Road King Base
2010 Harley Davidson FLHRC Road King Classic Base
2010 Harley Davidson FLHTC Electra Glide Classic Base
2010 Harley Davidson FLHTCU Electra Glide Ultra Classic Base
2010 Harley Davidson FLHTCUTG Tri Glide Ultra Classic Base
2010 Harley Davidson FLHTK Ultra Limited Base
2010 Harley Davidson FLHX Street Glide Base
2010 Harley Davidson FLHXSE CVO Street Glide Base
2010 Harley Davidson FLHXXX Street Glide Trike Base
2010 Harley Davidson FLSTC Heritage Softail Classic Base
2010 Harley Davidson FLSTF Fat Boy Base
2010 Harley Davidson FLSTFB Fat Boy Lo Base
2010 Harley Davidson FLSTSB Cross Bones Base
2010 Harley Davidson FLSTSE CVO Softail Convertible Base
2010 Harley Davidson FLTR Road Glide Base
2010 Harley Davidson FLTRX Road Glide Custom Base
2010 Harley Davidson FXCWC Rocker C Base
2010 Harley Davidson FXD Dyna Super Glide Base
2010 Harley Davidson FXDWG Dyna Wide Glide Base
2010 Harley Davidson FXSTC Softail Custom Base
2011 Harley Davidson FLHR Road King Base
2011 Harley Davidson FLHRC Road King Classic Base
2011 Harley Davidson FLHTC Electra Glide Classic Base
2011 Harley Davidson FLHTCU Electra Glide Ultra Classic Base
2011 Harley Davidson FLHTCUTG Tri Glide Ultra Classic Base
2011 Harley Davidson FLHTK Ultra Limited Base
2011 Harley Davidson FLHX Street Glide Base
2011 Harley Davidson FLHXXX Street Glide Trike Base
2011 Harley Davidson FLSTC Heritage Softail Classic Base
2011 Harley Davidson FLSTF Fat Boy Base
2011 Harley Davidson FLSTFB Fat Boy Lo Base
2011 Harley Davidson FLSTSB Cross Bones Base
2011 Harley Davidson FLTRU Road Glide Ultra Base
2011 Harley Davidson FLTRUSE CVO Road Glide Ultra Base
2011 Harley Davidson FLTRX Road Glide Custom Base
2011 Harley Davidson FXCWC Rocker C Base
2011 Harley Davidson FXDWG Dyna Wide Glide Base
2011 Harley Davidson FXS Blackline Base
2012 Harley Davidson FLD Switchback Base
2012 Harley Davidson FLHR Road King Base
2012 Harley Davidson FLHRC Road King Classic Base
2012 Harley Davidson FLHTC Electra Glide Classic Base
2012 Harley Davidson FLHTCU Electra Glide Ultra Classic Base
2012 Harley Davidson FLHTCUTG Tri Glide Ultra Classic Base
2012 Harley Davidson FLHTK Ultra Limited Base
2012 Harley Davidson FLHX Street Glide Base
2012 Harley Davidson FLS Softail Slim Base
2012 Harley Davidson FLSTC Heritage Softail Classic Base
2012 Harley Davidson FLSTF Fat Boy Base
2012 Harley Davidson FLSTFB Fat Boy Lo Base
2012 Harley Davidson FLTRU Road Glide Ultra Base
2012 Harley Davidson FLTRX Road Glide Custom Base
2012 Harley Davidson FLTRXSE CVO Road Glide Base
2012 Harley Davidson FXDWG Dyna Wide Glide Base
2012 Harley Davidson FXS Blackline Base
2013 Harley Davidson FLD Switchback Base
2013 Harley Davidson FLHR Road King Base
2013 Harley Davidson FLHRC Road King Classic Base
2013 Harley Davidson FLHTC Electra Glide Classic Base
2013 Harley Davidson FLHTCU Electra Glide Ultra Classic Base
2013 Harley Davidson FLHTCUTG Tri Glide Ultra Classic Base
2013 Harley Davidson FLHTK Ultra Limited Base
2013 Harley Davidson FLHX Street Glide Base
2013 Harley Davidson FLS Softail Slim Base
2013 Harley Davidson FLSTC Heritage Softail Classic Base
2013 Harley Davidson FLSTF Fat Boy Base
2013 Harley Davidson FLSTFB Fat Boy Lo Base
2013 Harley Davidson FLTRU Road Glide Ultra Base
2013 Harley Davidson FLTRX Road Glide Custom Base
2013 Harley Davidson FXDWG Dyna Wide Glide Base
2013 Harley Davidson FXS Blackline Base
2013 Harley Davidson FXSB Breakout Base
2013 Harley Davidson FXSBSE CVO Breakout Base
2014 Harley Davidson FLD Switchback Base
2014 Harley Davidson FLHR Road King Base
2014 Harley Davidson FLHTCU Electra Glide Ultra Classic Base
2014 Harley Davidson FLHTK Ultra Limited Base
2014 Harley Davidson FLHTKSE CVO Limited Base
2014 Harley Davidson FLHX Street Glide Base
2014 Harley Davidson FLHXS Street Glide Special Base
2014 Harley Davidson FLS Softail Slim Base
2014 Harley Davidson FLSTC Heritage Softail Classic Base
2014 Harley Davidson FLSTF Fat Boy Base
2014 Harley Davidson FLSTFB Fat Boy Lo Base
2014 Harley Davidson FXDL Dyna Low Rider Base
2014 Harley Davidson FXDWG Dyna Wide Glide Base
2014 Harley Davidson FXSB Breakout Base
2014 Harley Davidson FXSBSE CVO Breakout Base
2015 Harley Davidson FLD Switchback Base
2015 Harley Davidson FLHR Road King Base
2015 Harley Davidson FLHTCU Electra Glide Ultra Classic Base
2015 Harley Davidson FLHTK Ultra Limited Base
2015 Harley Davidson FLHTKL Ultra Limited Low Base
2015 Harley Davidson FLHTKSE CVO Limited Base
2015 Harley Davidson FLHX Street Glide Base
2015 Harley Davidson FLHXS Street Glide Special Base
2015 Harley Davidson FLHXSE CVO Street Glide Base
2015 Harley Davidson FLRT Freewheeler Base
2015 Harley Davidson FLS Softail Slim Base
2015 Harley Davidson FLSTC Heritage Softail Classic Base
2015 Harley Davidson FLSTF Fat Boy Base
2015 Harley Davidson FLSTFB Fat Boy Lo Base
2015 Harley Davidson FLTRUSE CVO Road Glide Ultra Base
2015 Harley Davidson FLTRX Road Glide Base
2015 Harley Davidson FLTRXS Road Glide Special Base
2015 Harley Davidson FXDL Dyna Low Rider Base
2015 Harley Davidson FXDWG Dyna Wide Glide Base
2015 Harley Davidson FXSB Breakout Base
2016 Harley Davidson FLD Switchback Base
2016 Harley Davidson FLHR Road King Base
2016 Harley Davidson FLHTCU Electra Glide Ultra Classic Base
2016 Harley Davidson FLHTK Ultra Limited Base
2016 Harley Davidson FLHTKL Ultra Limited Low Base
2016 Harley Davidson FLHTKSE CVO Limited Base
2016 Harley Davidson FLHX Street Glide Base
2016 Harley Davidson FLHXS Street Glide Special Base
2016 Harley Davidson FLHXSE CVO Street Glide Base
2016 Harley Davidson FLRT Freewheeler Base
2016 Harley Davidson FLS Softail Slim Base
2016 Harley Davidson FLSS Softail Slim S Base
2016 Harley Davidson FLSTC Heritage Softail Classic Base
2016 Harley Davidson FLSTF Fat Boy Base
2016 Harley Davidson FLSTFB Fat Boy Lo Base
2016 Harley Davidson FLSTFBS Fat Boy S Base
2016 Harley Davidson FLTR Road Glide Base
2016 Harley Davidson FLTRU Road Glide Ultra Base
2016 Harley Davidson FLTRUSE CVO Road Glide Ultra Base
2016 Harley Davidson FLTRX Road Glide Base
2016 Harley Davidson FLTRXS Road Glide Special Base
2016 Harley Davidson FXDL Dyna Low Rider Base
2016 Harley Davidson FXDWG Dyna Wide Glide Base
2016 Harley Davidson FXSB Breakout Base
2016 Harley Davidson FXSE CVO Pro Street Breakout Base
2017 Harley Davidson FLS Softail Slim Base
2017 Harley Davidson FLSS Softail Slim S Base
2017 Harley Davidson FLSTC Heritage Softail Classic Base
2017 Harley Davidson FLSTF Fat Boy Base
2017 Harley Davidson FLSTFB Fat Boy Lo Base
2017 Harley Davidson FLSTFBS Fat Boy S Base
2017 Harley Davidson FXDL Dyna Low Rider Base
2017 Harley Davidson FXDWG Dyna Wide Glide Base
2017 Harley Davidson FXSB Breakout Base
2017 Harley Davidson FXSE CVO Pro Street Breakout Base