S&S 3.375" Stroke Flywheel Assembly (320-0351)

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$1,759.95
$1,385.45
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  • This 4-3/8" stroke 8-1/2" diameter flywheel assembly replaces the original flywheels 2007-'16 HD big twin engines, when using high performance pistons that allow the use of connecting rods with full width wristpin ends
  • Sprocket shaft does not have the stock style bearing race pressed on
  • This flywheel assembly is for crankcases with a Timken sprocket shaft bearing
  • Flywheel assembly is three piece design
  • Pinion and sprocket shafts are forged as part of the flywheel
  • The only joints in the assembly are where the 1.671" diameter connecting rod crankpin is pressed into the flywheels
  • Flywheels are CNC machined from heat-treated, closed die, steel forgings, which are 114% stronger than late style stock steel flywheels
  • Fully assembled with premium quaility S&S heavy duty 7.659" connecting rods, with full width wrist pin ends, and dynamically balanced
  • Assembly is trued to less than .0005" runout on pinion and sprocket shaft bearing surfaces, making them capable of higher rpm and fully compatible with gear drive cams
Compatible Vehicles
Years Make Make Notes
2017 Harley-Davidson Breakout CVO Pro Street FXSE
2017 Harley-Davidson Breakout FXSB
2017 Harley-Davidson CVO Limited FLHTKSE
2017 Harley-Davidson Dyna Fat Bob FXDF
2006 Harley-Davidson Dyna Low Rider EFI FXDLI
2017 Harley-Davidson Dyna Low Rider FXDL
2017 Harley-Davidson Dyna Low Rider FXDLS
2006 Harley-Davidson Dyna Street Bob EFI FXDBI
2017 Harley-Davidson Dyna Street Bob FXDB
2006 Harley-Davidson Dyna Super Glide 35th Anniversary FXD
2006 Harley-Davidson Dyna Super Glide Custom EFI FXDCI
2006 Harley-Davidson Dyna Super Glide EFI FXDI
2006 Harley-Davidson Dyna Wide Glide EFI FXDWGI
2017 Harley-Davidson Dyna Wide Glide FXDWG
2007-2013 Harley-Davidson Electra Glide Classic FLHTC
2007-2009 Harley-Davidson Electra Glide FLHT
2015-2016 Harley-Davidson Electra Glide Low Ultra Classic FLHTCUL
2015 Harley-Davidson Electra Glide Low Ultra Limited FLHTKL
2007-2017 Harley-Davidson Electra Glide Ultra Classic FLHTCU
2010-2015 Harley-Davidson Electra Glide Ultra Limited FLHTK
2017 Harley-Davidson Fat Boy FLSTF
2017 Harley-Davidson Fat Boy Lo S FLSTFBS
2017 Harley-Davidson Freewheeler FLRT
2017 Harley-Davidson Heritage Softail Classic FLSTC
2010-2013 Harley-Davidson Road Glide Custom FLTRX
2007-2009 Harley-Davidson Road Glide FLTR
2015-2017 Harley-Davidson Road Glide FLTRX
2015-2017 Harley-Davidson Road Glide Special FLTRXS
2011-2013 Harley-Davidson Road Glide Ultra FLTRU
2016-2017 Harley-Davidson Road Glide Ultra FLTRU
2007-2013 Harley-Davidson Road King Classic FLHRC
2007 Harley-Davidson Road King Custom FLHRS
2007-2017 Harley-Davidson Road King FLHR
2017 Harley-Davidson Road King Special FLHRXS
2017 Harley-Davidson Softail Deluxe FLSTN
2017 Harley-Davidson Softail Slim FLS
2017 Harley-Davidson Softail Slim S FLSS
2017 Harley-Davidson Street Glide CVO FLHXSE
2007-2017 Harley-Davidson Street Glide FLHX
2014-2017 Harley-Davidson Street Glide Special FLHXS
2009-2013 Harley-Davidson Tri Glide Ultra Classic FLHTCUTG
2015 Harley-Davidson Tri Glide Ultra Classic FLHTCUTG
2016-2017 Harley-Davidson Tri Glide Ultra FLHTCUTG
2016-2017 Harley-Davidson Ultra Limited FLHTK
2016-2017 Harley-Davidson Ultra Limited Low FLHTKL

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