OEM Harley 23940-99 Crankshaft Flywheel New 99–06 Dyna Touring Softail

Description

Genuine OEM Harley-Davidson crankshaft flywheel assembly, part number 23940-99. This is a new, never-mountedfactory crankshaft that fits a range of 1999–2006 Harley Big Twin models, including Twin Cam-equipped Dyna, Touring, and Softail models.


Though this crankshaft has never been installed, it has been stored long-term and may show darkened areas or light surface discoloration from age. These spots are purely cosmetic and do not affect function. All surfaces are unmodified, and threads and keyways are in perfect, unused condition.


OEM Part Number:

 

  • 23940-99

 


Fits the following Harley-Davidson models with Twin Cam 88 engines (1999–2006):

 

  • 1999–2005 Dyna (FXD, FXDL, FXDWG)

  • 1999–2006 Touring (FLHT, FLTR, FLHR, FLHX)

  • 2000–2006 Softail (FXST, FLST, FXSTD, etc.)

 


Specs:

 

  • Engine: Twin Cam 88

  • Displacement: 1450cc (88 cu in)

  • Condition: New (never installed)

  • Material: Forged steel crankshaft with pressed flywheel assembly

  • Notes: Stored long-term; cosmetic oxidation present

 


Excellent choice for engine builders, restorers, or anyone replacing a damaged factory crank.

OEM Harley 23940-99 Crankshaft Flywheel New 99–06 Dyna Touring Softail

Product form

Genuine OEM Harley-Davidson crankshaft flywheel assembly, part number 23940-99. This is a new, never-mountedfactory crankshaft that fits a range of... Read more

Out of stock

$330.00

    • Shipped today? Order within: Sep 21, 2025 10:00:00 -0400

    Description

    Genuine OEM Harley-Davidson crankshaft flywheel assembly, part number 23940-99. This is a new, never-mountedfactory crankshaft that fits a range of 1999–2006 Harley Big Twin models, including Twin Cam-equipped Dyna, Touring, and Softail models.


    Though this crankshaft has never been installed, it has been stored long-term and may show darkened areas or light surface discoloration from age. These spots are purely cosmetic and do not affect function. All surfaces are unmodified, and threads and keyways are in perfect, unused condition.


    OEM Part Number:

     

    • 23940-99

     


    Fits the following Harley-Davidson models with Twin Cam 88 engines (1999–2006):

     

    • 1999–2005 Dyna (FXD, FXDL, FXDWG)

    • 1999–2006 Touring (FLHT, FLTR, FLHR, FLHX)

    • 2000–2006 Softail (FXST, FLST, FXSTD, etc.)

     


    Specs:

     

    • Engine: Twin Cam 88

    • Displacement: 1450cc (88 cu in)

    • Condition: New (never installed)

    • Material: Forged steel crankshaft with pressed flywheel assembly

    • Notes: Stored long-term; cosmetic oxidation present

     


    Excellent choice for engine builders, restorers, or anyone replacing a damaged factory crank.

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