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S&S Cycle
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S&S Cycle 3-Piece Flywheel - 4 3/8in. Stroke - 320-0356

320-0356

Description

Vast improvement over stock flywheels which shift out of true under heavy load
Heat treated 4140 material is 114% stronger than stock, eliminates thrust washer
Larger 1.671in. crankpin, increased cross-sectional area for increased crank-pin clamping force.
No welding required
Integral mainshafts, truer flywheels and less vibration
Notes: Strokes longer than stock will require S&S piston oiler set #31-2026. 07-up stock rod length is 7.659in..
Stock pistons in 2007 and later engines require rods with tapered wristpin ends.

Product Series

Application List

YearsMakeModelApplicationNotes
2017 - 2017Harley DavidsonFLHR Road KingModels with stock pistons
2017 - 2017Harley DavidsonFLHRXS Road King SpecialModels with stock pistons
2017 - 2017Harley DavidsonFLHTCU Electra Glide Ultra ClassicModels with stock pistons
2009 - 2009Harley DavidsonFLHTCUSE4 CVO Ultra Classic Electra GlideModels with stock pistons
2017 - 2017Harley DavidsonFLHTCUTG Tri Glide UltraModels with stock pistons
2017 - 2017Harley DavidsonFLHTK Ultra LimitedModels with stock pistons
2017 - 2017Harley DavidsonFLHTKL Ultra Limited LowModels with stock pistons
2017 - 2017Harley DavidsonFLHTKSE CVO LimitedModels with stock pistons
2017 - 2017Harley DavidsonFLHX Street GlideModels with stock pistons
2017 - 2017Harley DavidsonFLHXS Street Glide SpecialModels with stock pistons
2017 - 2017Harley DavidsonFLHXSE CVO Street GlideModels with stock pistons
2017 - 2017Harley DavidsonFLRT FreewheelerModels with stock pistons
2012 - 2017Harley DavidsonFLS Softail SlimModels with stock pistons
2017 - 2017Harley DavidsonFLSS Softail Slim SModels with stock pistons
2007 - 2017Harley DavidsonFLSTC Heritage Softail ClassicModels with stock pistons
2007 - 2017Harley DavidsonFLSTF Fat BoyModels with stock pistons
2010 - 2015Harley DavidsonFLSTFB Fat Boy LoModels with stock pistons
2017 - 2017Harley DavidsonFLSTFBS Fat Boy SModels with stock pistons
2007 - 2017Harley DavidsonFLSTN Softail DeluxeModels with stock pistons
2008 - 2011Harley DavidsonFLSTSB Cross BonesModels with stock pistons
2007 - 2007Harley DavidsonFLSTSC Softail Springer ClassicModels with stock pistons
2017 - 2017Harley DavidsonFLTRU Road Glide UltraModels with stock pistons
2017 - 2017Harley DavidsonFLTRX Road GlideModels with stock pistons
2017 - 2017Harley DavidsonFLTRXS Road Glide SpecialModels with stock pistons
2017 - 2017Harley DavidsonFXDB Street BobModels with stock pistons
2017 - 2017Harley DavidsonFXDF Fat BobModels with stock pistons
2017 - 2017Harley DavidsonFXDL Low RiderModels with stock pistons
2017 - 2017Harley DavidsonFXDLS Low Rider SModels with stock pistons
2017 - 2017Harley DavidsonFXDWG Dyna Wide GlideModels with stock pistons
2011 - 2013Harley DavidsonFXS BlacklineModels with stock pistons
2013 - 2017Harley DavidsonFXSB BreakoutModels with stock pistons
2017 - 2017Harley DavidsonFXSE CVO Pro Street BreakoutModels with stock pistons
2007 - 2007Harley DavidsonFXST Softail StandardModels with stock pistons
2007 - 2009Harley DavidsonFXSTB Night TrainModels with stock pistons
2007 - 2010Harley DavidsonFXSTC Softail CustomModels with stock pistons
2007 - 2007Harley DavidsonFXSTD Softail DeuceModels with stock pistons

Shipping Information

  • Item Requires Shipping
  • 5.0 lbs.
  • W6.0000” x H10.0000” x L4.0000”
  • Free Ground Shipping (1 - 5 Days)