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My Store
Open Today At 10am
3635 West Broad Street
Columbus, Ohio 43228
614-869-3115
What’s going on at Cycle Gear
Services
Experienced staff support available on site
Store Events
Meet the local riding community for Bike Nights & more
Shop the Store
Find out what’s in stock and ready to go
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Uh oh - Our system doesn't think this part will fit your 1972 Harley Davidson Servi-Car (G) 45ci (change vehicle selection)

S&S 4" Stroke Flywheel For Harley Twin Cam

The flywheels are the heart of any performance engine and S&S Cycle has been perfecting the art for over six decades. Stronger, more durable, and trued to a spec others can only dream of. Available with tapered connecting rods for stock style pistons or with full width connecting rods for S&S performance pistons. Three piece design with integral main shafts made from 4140 steel.

Features:

  • 4" stroke
  • Heavy duty connecting rods
  • Pinion and sprocket shafts are forged as part of the flywheel
  • CNC machined from heat-treated, closed die, steel forgings, which are 114% stronger than late style stock steel flywheels
  • Dynamically balanced
  • Trued to less than .0005" runout on pinion and sprocket shaft bearing surfaces
  • Capable of higher rpm
  • Fully compatible with gear drive cams
  • Made in the USA
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Please review this product's fitment notes & exceptions prior to purchase: Add to Cart

Uh oh - Our system doesn't think this part will fit your 1972 Harley Davidson Servi-Car (G) 45ci (change vehicle selection)

Fitment Notes & Exceptions
  • Strokes longer than stock will require S&S Cycle piston oiler set. 2007-up stock rod length is 7.659". Stock pistons in 2007 and later engines require rods with tapered wristpin ends.
  • Flywheel assemblies supplied with sprocket shaft bearing race installed are compatible with stock roller style sprocket shaft bearings. Assemblies with no race require a Timken sprocket shaft bearing.

This Product Fits:


Harley Davidson
Softail Deluxe FLSTN/I 2005, 2006
Softail Deuce FXSTD/I 2003, 2004, 2005, 2006
Softail Fat Boy FLSTF/I 2003, 2004, 2005, 2006
Softail Heritage Classic FLSTC/I 2003, 2004, 2005, 2006
Softail Heritage FLST/I 2006
Softail Heritage Springer FLSTS/I 2003
Softail Night Train FXSTB/I 2003, 2004, 2005, 2006
Softail Springer Classic FLSTSC/I 2005, 2006
Softail Springer FXSTS/I 2003, 2004, 2005, 2006
Softail Standard FXST/I 2003, 2004, 2005, 2006

This item is also available for 21 other models:

Harley Davidson
Dyna Low Rider FXDL/I 2003-2005
Dyna Super Glide Custom FXDC/I 2005
Dyna Super Glide FXD/I 2003-2005
Dyna Super Glide Sport FXDX 2003-2005
Dyna Super Glide Sport Touring FXDXT 2003
Dyna Wide Glide FXDWG/I 2003-2005
Electra Glide Classic FLHTC/I 2003-2006
Electra Glide Standard FLHT/I 2003-2006
Electra Glide Ultra Classic FLHTCU/I 2003-2006
Road Glide FLTR/I 2003-2006
Road King Classic FLHRC/I 2003-2006
Road King Custom FLHRS/I 2004-2006
Road King FLHR/I 2003-2006
Softail Deuce FXSTD/I 2000-2002
Softail Fat Boy FLSTF/I 2000-2002
Softail Heritage Classic FLSTC/I 2000-2002
Softail Heritage Springer FLSTS/I 2000-2002
Softail Night Train FXSTB/I 2000-2002
Softail Springer FXSTS/I 2000-2002
Softail Standard FXST/I 2000-2002
Street Glide FLHX/I 2006
Product Style Item # Store SKU Manufacturer Product # Availability
Product Style S&S Cycle 4" Stroke Flywheel For Harley Twin Cam "B" 2003-2006 Item # 1182063 Store SKU Manufacturer Product # 320-0396 Availability In Stock: Ships within 24 hours
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