TwinPower Ignition Coil Black for FLH/FLT with EFI (02-07) Replaces H-D 31743-01 .5 Ohm

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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.

TwinPower Ignition Coil for Harley FLH/FLT EFI Models (2002-2007)

Optimize the ignition performance of your fuel-injected Harley-Davidson FLH and FLT models with this TwinPower Ignition Coil. Designed for 2002-2007 applications, this black coil features a low resistance of 0.5 Ohms, specifically tuned for modern EFI systems. It serves as a direct replacement for the Harley-Davidson part number 31743-01, ensuring a precise fit and reliable spark delivery for enhanced engine response and power.

High-Performance Ignition:

  • EFI Optimized: Engineered with a 0.5 Ohm resistance for optimal performance in Harley-Davidson Electronic Fuel Injection (EFI) systems.
  • Direct Replacement: Replaces Harley-Davidson part # 31743-01, guaranteeing compatibility and ease of installation.
  • Model Specific Fitment: Designed for 2002-2007 FLH and FLT series motorcycles.
  • Durable Black Finish: Offers a clean, stealthy look that complements the engine bay.
  • Improved Spark Quality: Provides a strong, consistent spark for better combustion, throttle response, and overall engine efficiency.

Extensive Vehicle Compatibility:

This TwinPower ignition coil fits a wide range of Harley-Davidson touring and softail models equipped with EFI, including:

  • Road King (FLHR, FLHRC, FLHRCI, FLHRI, FLHRS)
  • Electra Glide Standard (FLHT)
  • Electra Glide Classic (FLHTC, FLHTCI)
  • Electra Glide Ultra Classic (FLHTCU, FLHTCUI)
  • Electra Glide Standard (FLHTI)
  • Road Glide (FLTRI)
  • Softail models (FLSTCI, FLSTFI, FLSTSI, FXSTBI, FXSTD, FXSTDI, FXSTI, FXSTSI)
  • And other compatible EFI models from 2002-2007.

Ensure your EFI-equipped Harley is firing on all cylinders. Upgrade to the reliability and performance of TwinPower. Shop this ignition coil and other essential parts at GGCRACING!

Vehicle Fitment

Years Make Model Trim
2002-2007 Harley-Davidson FLHR Road King Base
2007 Harley-Davidson FLHRC Road King Classic Base
2002-2006 Harley-Davidson FLHRCI Road King Classic Base
2002-2006 Harley-Davidson FLHRI Road King Base
2002 Harley-Davidson FLHRSEI Screamin Eagle Road King Base
2002-2007 Harley-Davidson FLHT Electra Glide Standard Base
2002-2005 Harley-Davidson FLHTC Electra Glide Classic Base
2007 Harley-Davidson FLHTC Electra Glide Classic Base
2007 Harley-Davidson FLHTCU Electra Glide Ultra Classic Base
2002-2006 Harley-Davidson FLHTCUI Electra Glide Ultra Classic Base
2003-2006 Harley-Davidson FLHTI Electra Glide Standard Base
2006-2007 Harley-Davidson FLHX Street Glide Base
2001-2006 Harley-Davidson FLSTCI Heritage Softail Classic Base
2001-2006 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
2002-2007 Harley-Davidson FLTR Road Glide Base
2002-2006 Harley-Davidson FLTRI Road Glide Base
2007-2011 Harley-Davidson FXDB Street Bob Base
2006 Harley-Davidson FXDBI Street Bob Base
2005 Harley-Davidson FXDC Super Glide Custom Base
2007-2011 Harley-Davidson FXDC Super Glide Custom Base
2008-2011 Harley-Davidson FXDF Fat Bob Base
2009-2010 Harley-Davidson FXDFSE CVO Dyna Fat Bob Base
2006 Harley-Davidson FXDI Dyna Super Glide Base
2004-2005 Harley-Davidson FXDL Dyna Low Rider Base
2007-2011 Harley-Davidson FXDL Dyna Low Rider Base
2004-2011 Harley-Davidson FXDWG Dyna Wide Glide Base
2004-2006 Harley-Davidson FXDWGI Dyna Wide Glide Base
2004-2005 Harley-Davidson FXDX Dyna Super Glide Sport Base
2001-2006 Harley-Davidson FXSTB Night Train Base
2001-2006 Harley-Davidson FXSTD Softail Deuce Base
2001-2006 Harley-Davidson FXSTDI Softail Deuce Base
2003-2004 Harley-Davidson FXSTDSE Screamin Eagle Softail Deuce Base
2001-2006 Harley-Davidson FXSTI Softail Standard 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.

TwinPower Ignition Coil for Harley FLH/FLT EFI Models (2002-2007)

Optimize the ignition performance of your fuel-injected Harley-Davidson FLH and FLT models with this TwinPower Ignition Coil. Designed for 2002-2007 applications, this black coil features a low resistance of 0.5 Ohms, specifically tuned for modern EFI systems. It serves as a direct replacement for the Harley-Davidson part number 31743-01, ensuring a precise fit and reliable spark delivery for enhanced engine response and power.

High-Performance Ignition:

  • EFI Optimized: Engineered with a 0.5 Ohm resistance for optimal performance in Harley-Davidson Electronic Fuel Injection (EFI) systems.
  • Direct Replacement: Replaces Harley-Davidson part # 31743-01, guaranteeing compatibility and ease of installation.
  • Model Specific Fitment: Designed for 2002-2007 FLH and FLT series motorcycles.
  • Durable Black Finish: Offers a clean, stealthy look that complements the engine bay.
  • Improved Spark Quality: Provides a strong, consistent spark for better combustion, throttle response, and overall engine efficiency.

Extensive Vehicle Compatibility:

This TwinPower ignition coil fits a wide range of Harley-Davidson touring and softail models equipped with EFI, including:

  • Road King (FLHR, FLHRC, FLHRCI, FLHRI, FLHRS)
  • Electra Glide Standard (FLHT)
  • Electra Glide Classic (FLHTC, FLHTCI)
  • Electra Glide Ultra Classic (FLHTCU, FLHTCUI)
  • Electra Glide Standard (FLHTI)
  • Road Glide (FLTRI)
  • Softail models (FLSTCI, FLSTFI, FLSTSI, FXSTBI, FXSTD, FXSTDI, FXSTI, FXSTSI)
  • And other compatible EFI models from 2002-2007.

Ensure your EFI-equipped Harley is firing on all cylinders. Upgrade to the reliability and performance of TwinPower. Shop this ignition coil and other essential parts at GGCRACING!

Vehicle Fitment

Years Make Model Trim
2002-2007 Harley-Davidson FLHR Road King Base
2007 Harley-Davidson FLHRC Road King Classic Base
2002-2006 Harley-Davidson FLHRCI Road King Classic Base
2002-2006 Harley-Davidson FLHRI Road King Base
2002 Harley-Davidson FLHRSEI Screamin Eagle Road King Base
2002-2007 Harley-Davidson FLHT Electra Glide Standard Base
2002-2005 Harley-Davidson FLHTC Electra Glide Classic Base
2007 Harley-Davidson FLHTC Electra Glide Classic Base
2007 Harley-Davidson FLHTCU Electra Glide Ultra Classic Base
2002-2006 Harley-Davidson FLHTCUI Electra Glide Ultra Classic Base
2003-2006 Harley-Davidson FLHTI Electra Glide Standard Base
2006-2007 Harley-Davidson FLHX Street Glide Base
2001-2006 Harley-Davidson FLSTCI Heritage Softail Classic Base
2001-2006 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
2002-2007 Harley-Davidson FLTR Road Glide Base
2002-2006 Harley-Davidson FLTRI Road Glide Base
2007-2011 Harley-Davidson FXDB Street Bob Base
2006 Harley-Davidson FXDBI Street Bob Base
2005 Harley-Davidson FXDC Super Glide Custom Base
2007-2011 Harley-Davidson FXDC Super Glide Custom Base
2008-2011 Harley-Davidson FXDF Fat Bob Base
2009-2010 Harley-Davidson FXDFSE CVO Dyna Fat Bob Base
2006 Harley-Davidson FXDI Dyna Super Glide Base
2004-2005 Harley-Davidson FXDL Dyna Low Rider Base
2007-2011 Harley-Davidson FXDL Dyna Low Rider Base
2004-2011 Harley-Davidson FXDWG Dyna Wide Glide Base
2004-2006 Harley-Davidson FXDWGI Dyna Wide Glide Base
2004-2005 Harley-Davidson FXDX Dyna Super Glide Sport Base
2001-2006 Harley-Davidson FXSTB Night Train Base
2001-2006 Harley-Davidson FXSTD Softail Deuce Base
2001-2006 Harley-Davidson FXSTDI Softail Deuce Base
2003-2004 Harley-Davidson FXSTDSE Screamin Eagle Softail Deuce Base
2001-2006 Harley-Davidson FXSTI Softail Standard 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.

TwinPower Ignition Coil for Harley FLH/FLT EFI Models (2002-2007)

Optimize the ignition performance of your fuel-injected Harley-Davidson FLH and FLT models with this TwinPower Ignition Coil. Designed for 2002-2007 applications, this black coil features a low resistance of 0.5 Ohms, specifically tuned for modern EFI systems. It serves as a direct replacement for the Harley-Davidson part number 31743-01, ensuring a precise fit and reliable spark delivery for enhanced engine response and power.

High-Performance Ignition:

  • EFI Optimized: Engineered with a 0.5 Ohm resistance for optimal performance in Harley-Davidson Electronic Fuel Injection (EFI) systems.
  • Direct Replacement: Replaces Harley-Davidson part # 31743-01, guaranteeing compatibility and ease of installation.
  • Model Specific Fitment: Designed for 2002-2007 FLH and FLT series motorcycles.
  • Durable Black Finish: Offers a clean, stealthy look that complements the engine bay.
  • Improved Spark Quality: Provides a strong, consistent spark for better combustion, throttle response, and overall engine efficiency.

Extensive Vehicle Compatibility:

This TwinPower ignition coil fits a wide range of Harley-Davidson touring and softail models equipped with EFI, including:

  • Road King (FLHR, FLHRC, FLHRCI, FLHRI, FLHRS)
  • Electra Glide Standard (FLHT)
  • Electra Glide Classic (FLHTC, FLHTCI)
  • Electra Glide Ultra Classic (FLHTCU, FLHTCUI)
  • Electra Glide Standard (FLHTI)
  • Road Glide (FLTRI)
  • Softail models (FLSTCI, FLSTFI, FLSTSI, FXSTBI, FXSTD, FXSTDI, FXSTI, FXSTSI)
  • And other compatible EFI models from 2002-2007.

Ensure your EFI-equipped Harley is firing on all cylinders. Upgrade to the reliability and performance of TwinPower. Shop this ignition coil and other essential parts at GGCRACING!

Vehicle Fitment

Years Make Model Trim
2002-2007 Harley-Davidson FLHR Road King Base
2007 Harley-Davidson FLHRC Road King Classic Base
2002-2006 Harley-Davidson FLHRCI Road King Classic Base
2002-2006 Harley-Davidson FLHRI Road King Base
2002 Harley-Davidson FLHRSEI Screamin Eagle Road King Base
2002-2007 Harley-Davidson FLHT Electra Glide Standard Base
2002-2005 Harley-Davidson FLHTC Electra Glide Classic Base
2007 Harley-Davidson FLHTC Electra Glide Classic Base
2007 Harley-Davidson FLHTCU Electra Glide Ultra Classic Base
2002-2006 Harley-Davidson FLHTCUI Electra Glide Ultra Classic Base
2003-2006 Harley-Davidson FLHTI Electra Glide Standard Base
2006-2007 Harley-Davidson FLHX Street Glide Base
2001-2006 Harley-Davidson FLSTCI Heritage Softail Classic Base
2001-2006 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
2002-2007 Harley-Davidson FLTR Road Glide Base
2002-2006 Harley-Davidson FLTRI Road Glide Base
2007-2011 Harley-Davidson FXDB Street Bob Base
2006 Harley-Davidson FXDBI Street Bob Base
2005 Harley-Davidson FXDC Super Glide Custom Base
2007-2011 Harley-Davidson FXDC Super Glide Custom Base
2008-2011 Harley-Davidson FXDF Fat Bob Base
2009-2010 Harley-Davidson FXDFSE CVO Dyna Fat Bob Base
2006 Harley-Davidson FXDI Dyna Super Glide Base
2004-2005 Harley-Davidson FXDL Dyna Low Rider Base
2007-2011 Harley-Davidson FXDL Dyna Low Rider Base
2004-2011 Harley-Davidson FXDWG Dyna Wide Glide Base
2004-2006 Harley-Davidson FXDWGI Dyna Wide Glide Base
2004-2005 Harley-Davidson FXDX Dyna Super Glide Sport Base
2001-2006 Harley-Davidson FXSTB Night Train Base
2001-2006 Harley-Davidson FXSTD Softail Deuce Base
2001-2006 Harley-Davidson FXSTDI Softail Deuce Base
2003-2004 Harley-Davidson FXSTDSE Screamin Eagle Softail Deuce Base
2001-2006 Harley-Davidson FXSTI Softail Standard Base
2001-2006 Harley-Davidson FXSTSI Springer Softail Base

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