Twin Power 98-06 Big Twin Clutch Hub — Fits Harley-Davidson 1998-2006

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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.

Watch in action

Twin Power 98-06 Big Twin Clutch Hub

Ensure optimal clutch engagement with the Twin Power Clutch Hub, designed for 1998-2006 Harley-Davidson Big Twin models (excluding 2006 Dyna). This high-quality reproduction features durable steel splines and a lightweight aluminum hub, offering a perfect balance of strength and performance. It serves as a direct replacement for Harley-Davidson part number 37550-98.

Key Features and Benefits:

  • Direct OE Replacement: Matches H-D part 37550-98 for accurate fitment.
  • Durable Construction: Combines strong steel splines with a lightweight aluminum hub for longevity and performance.
  • Wide Big Twin Fitment: Compatible with a vast array of Big Twin models from 1998 through 2006, including FLHR, FLHT, FLST, FXD, and FXST series.
  • Excludes 2006 Dyna: Please note this part is not compatible with 2006 Dyna models.
  • Restores Clutch Functionality: Essential for smooth clutch operation and reliable power transfer.

Maintain Your Harley's Drivetrain

The clutch hub is a critical component in your motorcycle's drivetrain, responsible for connecting the engine to the transmission. A worn or damaged hub can lead to slipping clutches, difficulty shifting, and potential drivetrain damage. This Twin Power clutch hub ensures your clutch system operates as intended, providing a smooth and responsive riding experience.

Whether you're performing routine maintenance or rebuilding your transmission, this Twin Power clutch hub is a reliable choice. Trust GGCRACING for quality aftermarket parts that keep your Harley-Davidson running at its best.

Vehicle Fitment

Years Make Model Trim
1998-2006 Harley-Davidson FLHR Road King Base
1998-2006 Harley-Davidson FLHRCI Road King Classic Base
2000-2006 Harley-Davidson FLHRI Road King Base
2004-2006 Harley-Davidson FLHRS Road King Custom Base
1999-2000 Harley-Davidson FLHT Electra Glide Standard Base
2003 Harley-Davidson FLHT Electra Glide Standard Base
2006 Harley-Davidson FLHT Electra Glide Standard Base
1998-2005 Harley-Davidson FLHTC Electra Glide Classic Base
1998-2006 Harley-Davidson FLHTCUI Electra Glide Ultra Classic Base
2003-2006 Harley-Davidson FLHTI Electra Glide Standard Base
2006 Harley-Davidson FLHX Street Glide Base
2006 Harley-Davidson FLST Heritage Softail Base
2001-2006 Harley-Davidson FLSTCI Heritage Softail Classic Base
1998-2006 Harley-Davidson FLSTF Fat Boy Base
2001-2006 Harley-Davidson FLSTFI Fat Boy Base
2005-2006 Harley-Davidson FLSTN Softail Deluxe Base
2005-2006 Harley-Davidson FLSTSC Softail Springer Classic Base
2001-2003 Harley-Davidson FLSTSI Heritage Springer Base
1998-2006 Harley-Davidson FLTR Road Glide Base
1998-2006 Harley-Davidson FLTRI Road Glide Base
2006 Harley-Davidson FXDBI Street Bob Base
2005 Harley-Davidson FXDC Super Glide Custom Base
2005-2006 Harley-Davidson FXDCI Super Glide Custom Base
2006 Harley-Davidson FXDI Dyna Super Glide Base
1998-2005 Harley-Davidson FXDL Dyna Low Rider Base
1998-2000 Harley-Davidson FXDS-Conv Dyna Convertible Base
1998-2006 Harley-Davidson FXDWG Dyna Wide Glide Base
2001 Harley-Davidson FXDWG2 Base
2004-2006 Harley-Davidson FXDWGI Dyna Wide Glide Base
2001-2003 Harley-Davidson FXDXT Dyna Super Glide T-Sport Base
1999 Harley-Davidson FXR2 Base
1999 Harley-Davidson FXR3 Base
2000 Harley-Davidson FXR4 Base
1999-2006 Harley-Davidson FXSTB Night Train Base
1998-1999 Harley-Davidson FXSTC Softail Custom Base
2000-2006 Harley-Davidson FXSTD Softail Deuce Base
2001-2006 Harley-Davidson FXSTDI Softail Deuce Base
2003-2004 Harley-Davidson FXSTDSE Screamin Eagle Softail Deuce Base
1998-2006 Harley-Davidson FXSTS Springer Softail Base
2001-2006 Harley-Davidson FXSTSI Springer Softail 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.

Watch in action

Twin Power 98-06 Big Twin Clutch Hub

Ensure optimal clutch engagement with the Twin Power Clutch Hub, designed for 1998-2006 Harley-Davidson Big Twin models (excluding 2006 Dyna). This high-quality reproduction features durable steel splines and a lightweight aluminum hub, offering a perfect balance of strength and performance. It serves as a direct replacement for Harley-Davidson part number 37550-98.

Key Features and Benefits:

  • Direct OE Replacement: Matches H-D part 37550-98 for accurate fitment.
  • Durable Construction: Combines strong steel splines with a lightweight aluminum hub for longevity and performance.
  • Wide Big Twin Fitment: Compatible with a vast array of Big Twin models from 1998 through 2006, including FLHR, FLHT, FLST, FXD, and FXST series.
  • Excludes 2006 Dyna: Please note this part is not compatible with 2006 Dyna models.
  • Restores Clutch Functionality: Essential for smooth clutch operation and reliable power transfer.

Maintain Your Harley's Drivetrain

The clutch hub is a critical component in your motorcycle's drivetrain, responsible for connecting the engine to the transmission. A worn or damaged hub can lead to slipping clutches, difficulty shifting, and potential drivetrain damage. This Twin Power clutch hub ensures your clutch system operates as intended, providing a smooth and responsive riding experience.

Whether you're performing routine maintenance or rebuilding your transmission, this Twin Power clutch hub is a reliable choice. Trust GGCRACING for quality aftermarket parts that keep your Harley-Davidson running at its best.

Vehicle Fitment

Years Make Model Trim
1998-2006 Harley-Davidson FLHR Road King Base
1998-2006 Harley-Davidson FLHRCI Road King Classic Base
2000-2006 Harley-Davidson FLHRI Road King Base
2004-2006 Harley-Davidson FLHRS Road King Custom Base
1999-2000 Harley-Davidson FLHT Electra Glide Standard Base
2003 Harley-Davidson FLHT Electra Glide Standard Base
2006 Harley-Davidson FLHT Electra Glide Standard Base
1998-2005 Harley-Davidson FLHTC Electra Glide Classic Base
1998-2006 Harley-Davidson FLHTCUI Electra Glide Ultra Classic Base
2003-2006 Harley-Davidson FLHTI Electra Glide Standard Base
2006 Harley-Davidson FLHX Street Glide Base
2006 Harley-Davidson FLST Heritage Softail Base
2001-2006 Harley-Davidson FLSTCI Heritage Softail Classic Base
1998-2006 Harley-Davidson FLSTF Fat Boy Base
2001-2006 Harley-Davidson FLSTFI Fat Boy Base
2005-2006 Harley-Davidson FLSTN Softail Deluxe Base
2005-2006 Harley-Davidson FLSTSC Softail Springer Classic Base
2001-2003 Harley-Davidson FLSTSI Heritage Springer Base
1998-2006 Harley-Davidson FLTR Road Glide Base
1998-2006 Harley-Davidson FLTRI Road Glide Base
2006 Harley-Davidson FXDBI Street Bob Base
2005 Harley-Davidson FXDC Super Glide Custom Base
2005-2006 Harley-Davidson FXDCI Super Glide Custom Base
2006 Harley-Davidson FXDI Dyna Super Glide Base
1998-2005 Harley-Davidson FXDL Dyna Low Rider Base
1998-2000 Harley-Davidson FXDS-Conv Dyna Convertible Base
1998-2006 Harley-Davidson FXDWG Dyna Wide Glide Base
2001 Harley-Davidson FXDWG2 Base
2004-2006 Harley-Davidson FXDWGI Dyna Wide Glide Base
2001-2003 Harley-Davidson FXDXT Dyna Super Glide T-Sport Base
1999 Harley-Davidson FXR2 Base
1999 Harley-Davidson FXR3 Base
2000 Harley-Davidson FXR4 Base
1999-2006 Harley-Davidson FXSTB Night Train Base
1998-1999 Harley-Davidson FXSTC Softail Custom Base
2000-2006 Harley-Davidson FXSTD Softail Deuce Base
2001-2006 Harley-Davidson FXSTDI Softail Deuce Base
2003-2004 Harley-Davidson FXSTDSE Screamin Eagle Softail Deuce Base
1998-2006 Harley-Davidson FXSTS Springer Softail Base
2001-2006 Harley-Davidson FXSTSI Springer Softail 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.

Watch in action

Twin Power 98-06 Big Twin Clutch Hub

Ensure optimal clutch engagement with the Twin Power Clutch Hub, designed for 1998-2006 Harley-Davidson Big Twin models (excluding 2006 Dyna). This high-quality reproduction features durable steel splines and a lightweight aluminum hub, offering a perfect balance of strength and performance. It serves as a direct replacement for Harley-Davidson part number 37550-98.

Key Features and Benefits:

  • Direct OE Replacement: Matches H-D part 37550-98 for accurate fitment.
  • Durable Construction: Combines strong steel splines with a lightweight aluminum hub for longevity and performance.
  • Wide Big Twin Fitment: Compatible with a vast array of Big Twin models from 1998 through 2006, including FLHR, FLHT, FLST, FXD, and FXST series.
  • Excludes 2006 Dyna: Please note this part is not compatible with 2006 Dyna models.
  • Restores Clutch Functionality: Essential for smooth clutch operation and reliable power transfer.

Maintain Your Harley's Drivetrain

The clutch hub is a critical component in your motorcycle's drivetrain, responsible for connecting the engine to the transmission. A worn or damaged hub can lead to slipping clutches, difficulty shifting, and potential drivetrain damage. This Twin Power clutch hub ensures your clutch system operates as intended, providing a smooth and responsive riding experience.

Whether you're performing routine maintenance or rebuilding your transmission, this Twin Power clutch hub is a reliable choice. Trust GGCRACING for quality aftermarket parts that keep your Harley-Davidson running at its best.

Vehicle Fitment

Years Make Model Trim
1998-2006 Harley-Davidson FLHR Road King Base
1998-2006 Harley-Davidson FLHRCI Road King Classic Base
2000-2006 Harley-Davidson FLHRI Road King Base
2004-2006 Harley-Davidson FLHRS Road King Custom Base
1999-2000 Harley-Davidson FLHT Electra Glide Standard Base
2003 Harley-Davidson FLHT Electra Glide Standard Base
2006 Harley-Davidson FLHT Electra Glide Standard Base
1998-2005 Harley-Davidson FLHTC Electra Glide Classic Base
1998-2006 Harley-Davidson FLHTCUI Electra Glide Ultra Classic Base
2003-2006 Harley-Davidson FLHTI Electra Glide Standard Base
2006 Harley-Davidson FLHX Street Glide Base
2006 Harley-Davidson FLST Heritage Softail Base
2001-2006 Harley-Davidson FLSTCI Heritage Softail Classic Base
1998-2006 Harley-Davidson FLSTF Fat Boy Base
2001-2006 Harley-Davidson FLSTFI Fat Boy Base
2005-2006 Harley-Davidson FLSTN Softail Deluxe Base
2005-2006 Harley-Davidson FLSTSC Softail Springer Classic Base
2001-2003 Harley-Davidson FLSTSI Heritage Springer Base
1998-2006 Harley-Davidson FLTR Road Glide Base
1998-2006 Harley-Davidson FLTRI Road Glide Base
2006 Harley-Davidson FXDBI Street Bob Base
2005 Harley-Davidson FXDC Super Glide Custom Base
2005-2006 Harley-Davidson FXDCI Super Glide Custom Base
2006 Harley-Davidson FXDI Dyna Super Glide Base
1998-2005 Harley-Davidson FXDL Dyna Low Rider Base
1998-2000 Harley-Davidson FXDS-Conv Dyna Convertible Base
1998-2006 Harley-Davidson FXDWG Dyna Wide Glide Base
2001 Harley-Davidson FXDWG2 Base
2004-2006 Harley-Davidson FXDWGI Dyna Wide Glide Base
2001-2003 Harley-Davidson FXDXT Dyna Super Glide T-Sport Base
1999 Harley-Davidson FXR2 Base
1999 Harley-Davidson FXR3 Base
2000 Harley-Davidson FXR4 Base
1999-2006 Harley-Davidson FXSTB Night Train Base
1998-1999 Harley-Davidson FXSTC Softail Custom Base
2000-2006 Harley-Davidson FXSTD Softail Deuce Base
2001-2006 Harley-Davidson FXSTDI Softail Deuce Base
2003-2004 Harley-Davidson FXSTDSE Screamin Eagle Softail Deuce Base
1998-2006 Harley-Davidson FXSTS Springer Softail Base
2001-2006 Harley-Davidson FXSTSI Springer Softail Base

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