Twin Power 9-Tooth Starter Pinion Gear for 1998-2006 Harley-Davidson Big Twin (Use w/ 66T Ring Gear)

SKU: TWP482523
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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 9-Tooth Starter Pinion Gear for Harley-Davidson Big Twin (1998-2006)

This 9-tooth starter pinion gear from Twin Power is designed to be used with a 66-tooth starter ring gear for 1998-2006 Harley-Davidson Big Twin models (excluding 2006 Dyna). It is a critical component that meshes with the ring gear to initiate the engine's starting sequence. Ensuring you have the correct pinion gear is vital for the smooth and reliable operation of your starter system.

Key Features:

  • Precise Engagement: Engineered with 9 teeth to perfectly mesh with compatible 66-tooth starter ring gears.
  • Broad Fitment: Suitable for a wide range of 1998-2006 Harley-Davidson Big Twin models, including FLHR, FLHRCI, FLHT, FLHTC, FLHTCI, FLHTCUI, FLSTC, FLSTF, FLSTS, FLTR, FLTRI, FXD, FXDL, FXDS-CONV, FXDWG, FXSTC, and FXSTS.
  • Durable Construction: Manufactured from high-quality materials to withstand the high forces involved in starting an engine, ensuring long service life.
  • Essential Component: Works in conjunction with the ring gear to provide the necessary torque for engine ignition.

This pinion gear is specifically designed to work with the 66-tooth starter ring gear (part number TWP482455). Using the correct combination ensures optimal gear meshing, reduces wear on both components, and guarantees efficient power transfer from the starter motor to the engine. It's an indispensable part for anyone rebuilding or maintaining their Big Twin's starting system.

Ensure your Harley-Davidson Big Twin starts every time. Get the Twin Power 9-tooth starter pinion gear today!

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
2002 Harley-Davidson FLHRSEI Screamin Eagle Road King Base
1998-2005 Harley-Davidson FLHTC Electra Glide Classic Base
1998-2006 Harley-Davidson FLHTCI Electra Glide Classic Base
1998-2006 Harley-Davidson FLHTCUI Electra Glide Ultra Classic Base
2003-2006 Harley-Davidson FLHTI Electra Glide Standard Base
1998-2006 Harley-Davidson FLSTC Heritage Softail Classic Base
1998-2006 Harley-Davidson FLSTF Fat Boy Base
1998-2006 Harley-Davidson FLSTS Heritage Springer Base
2005-2006 Harley-Davidson FLSTSC Softail Springer Classic Base
1998-2006 Harley-Davidson FLTRI Road Glide Base
1998-2006 Harley-Davidson FXD Dyna Super Glide Base
2006 Harley-Davidson FXDBI Street Bob Base
2005 Harley-Davidson FXDC Super Glide Custom Base
2006 Harley-Davidson FXDI Dyna Super Glide Base
2004-2006 Harley-Davidson FXDLI Dyna Low Rider Base
1998-2000 Harley-Davidson FXDS-Conv Dyna Convertible Base
1998-2006 Harley-Davidson FXDWG Dyna Wide Glide Base
2004-2006 Harley-Davidson FXDWGI Dyna Wide Glide 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
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.

Twin Power 9-Tooth Starter Pinion Gear for Harley-Davidson Big Twin (1998-2006)

This 9-tooth starter pinion gear from Twin Power is designed to be used with a 66-tooth starter ring gear for 1998-2006 Harley-Davidson Big Twin models (excluding 2006 Dyna). It is a critical component that meshes with the ring gear to initiate the engine's starting sequence. Ensuring you have the correct pinion gear is vital for the smooth and reliable operation of your starter system.

Key Features:

  • Precise Engagement: Engineered with 9 teeth to perfectly mesh with compatible 66-tooth starter ring gears.
  • Broad Fitment: Suitable for a wide range of 1998-2006 Harley-Davidson Big Twin models, including FLHR, FLHRCI, FLHT, FLHTC, FLHTCI, FLHTCUI, FLSTC, FLSTF, FLSTS, FLTR, FLTRI, FXD, FXDL, FXDS-CONV, FXDWG, FXSTC, and FXSTS.
  • Durable Construction: Manufactured from high-quality materials to withstand the high forces involved in starting an engine, ensuring long service life.
  • Essential Component: Works in conjunction with the ring gear to provide the necessary torque for engine ignition.

This pinion gear is specifically designed to work with the 66-tooth starter ring gear (part number TWP482455). Using the correct combination ensures optimal gear meshing, reduces wear on both components, and guarantees efficient power transfer from the starter motor to the engine. It's an indispensable part for anyone rebuilding or maintaining their Big Twin's starting system.

Ensure your Harley-Davidson Big Twin starts every time. Get the Twin Power 9-tooth starter pinion gear today!

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
2002 Harley-Davidson FLHRSEI Screamin Eagle Road King Base
1998-2005 Harley-Davidson FLHTC Electra Glide Classic Base
1998-2006 Harley-Davidson FLHTCI Electra Glide Classic Base
1998-2006 Harley-Davidson FLHTCUI Electra Glide Ultra Classic Base
2003-2006 Harley-Davidson FLHTI Electra Glide Standard Base
1998-2006 Harley-Davidson FLSTC Heritage Softail Classic Base
1998-2006 Harley-Davidson FLSTF Fat Boy Base
1998-2006 Harley-Davidson FLSTS Heritage Springer Base
2005-2006 Harley-Davidson FLSTSC Softail Springer Classic Base
1998-2006 Harley-Davidson FLTRI Road Glide Base
1998-2006 Harley-Davidson FXD Dyna Super Glide Base
2006 Harley-Davidson FXDBI Street Bob Base
2005 Harley-Davidson FXDC Super Glide Custom Base
2006 Harley-Davidson FXDI Dyna Super Glide Base
2004-2006 Harley-Davidson FXDLI Dyna Low Rider Base
1998-2000 Harley-Davidson FXDS-Conv Dyna Convertible Base
1998-2006 Harley-Davidson FXDWG Dyna Wide Glide Base
2004-2006 Harley-Davidson FXDWGI Dyna Wide Glide 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
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.

Twin Power 9-Tooth Starter Pinion Gear for Harley-Davidson Big Twin (1998-2006)

This 9-tooth starter pinion gear from Twin Power is designed to be used with a 66-tooth starter ring gear for 1998-2006 Harley-Davidson Big Twin models (excluding 2006 Dyna). It is a critical component that meshes with the ring gear to initiate the engine's starting sequence. Ensuring you have the correct pinion gear is vital for the smooth and reliable operation of your starter system.

Key Features:

  • Precise Engagement: Engineered with 9 teeth to perfectly mesh with compatible 66-tooth starter ring gears.
  • Broad Fitment: Suitable for a wide range of 1998-2006 Harley-Davidson Big Twin models, including FLHR, FLHRCI, FLHT, FLHTC, FLHTCI, FLHTCUI, FLSTC, FLSTF, FLSTS, FLTR, FLTRI, FXD, FXDL, FXDS-CONV, FXDWG, FXSTC, and FXSTS.
  • Durable Construction: Manufactured from high-quality materials to withstand the high forces involved in starting an engine, ensuring long service life.
  • Essential Component: Works in conjunction with the ring gear to provide the necessary torque for engine ignition.

This pinion gear is specifically designed to work with the 66-tooth starter ring gear (part number TWP482455). Using the correct combination ensures optimal gear meshing, reduces wear on both components, and guarantees efficient power transfer from the starter motor to the engine. It's an indispensable part for anyone rebuilding or maintaining their Big Twin's starting system.

Ensure your Harley-Davidson Big Twin starts every time. Get the Twin Power 9-tooth starter pinion gear today!

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
2002 Harley-Davidson FLHRSEI Screamin Eagle Road King Base
1998-2005 Harley-Davidson FLHTC Electra Glide Classic Base
1998-2006 Harley-Davidson FLHTCI Electra Glide Classic Base
1998-2006 Harley-Davidson FLHTCUI Electra Glide Ultra Classic Base
2003-2006 Harley-Davidson FLHTI Electra Glide Standard Base
1998-2006 Harley-Davidson FLSTC Heritage Softail Classic Base
1998-2006 Harley-Davidson FLSTF Fat Boy Base
1998-2006 Harley-Davidson FLSTS Heritage Springer Base
2005-2006 Harley-Davidson FLSTSC Softail Springer Classic Base
1998-2006 Harley-Davidson FLTRI Road Glide Base
1998-2006 Harley-Davidson FXD Dyna Super Glide Base
2006 Harley-Davidson FXDBI Street Bob Base
2005 Harley-Davidson FXDC Super Glide Custom Base
2006 Harley-Davidson FXDI Dyna Super Glide Base
2004-2006 Harley-Davidson FXDLI Dyna Low Rider Base
1998-2000 Harley-Davidson FXDS-Conv Dyna Convertible Base
1998-2006 Harley-Davidson FXDWG Dyna Wide Glide Base
2004-2006 Harley-Davidson FXDWGI Dyna Wide Glide 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
1998-2006 Harley-Davidson FXSTS Springer Softail Base
2001-2006 Harley-Davidson FXSTSI Springer Softail Base

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