Search Suggestions
Menu

Product Details

S&S Flywheel Assembly For Harley Milwaukee-Eight

When S&S Cycle has been building stroker cranks since the 50s, it becomes an artform after so many years. These kits have only gotten much stronger, durable, and trued to a spec others can only imagine. If you are looking for the perfect piece to your puzzle to your high performance engine then look no further.

Features:

Note: Full width wristpin connecting rods require S&S performance pistons / Tapered wristpin connecting rods compatible with stock pistons

  • Heat treated 4140 material is harder & more than twice as strong as stock
  • Stronger assembly eliminates need to weld crankpin
  • Capable of higher RPM - More available power
  • S&S High strength connecting rods are designed with Finite Element Analysis to eliminate weak spots and handle more power
  • Perfect for gear drive cams
  • 4-1/2" Stroke (114 or 128ci)
  • 4-3/8" Stroke (107 or 124ci)
  • 4-5/8" Stroke - Use S&S 131 Kits
Made in the USA
Product Style J&P Cycles Item # Catalog Number Store Sku MFR. Product # Availability
Product Style Full width wristpin / Balancer gear / 4 1/2" Stroke J&P Cycles Item #10089976 Catalog Number590-0394 Store Sku MFR. Product #320-0603 AvailabilityIn Stock: Ships within 24 hours
Product Style Full width wristpin / Balancer gear / 4 3/8" Stroke J&P Cycles Item #10089977 Catalog Number590-0395 Store Sku MFR. Product #320-0604 AvailabilityIn Stock: Ships within 24 hours
Product Style Full width wristpin / Balancer gear / 4 5/8" Stroke J&P Cycles Item #10089978 Catalog Number590-0396 Store Sku MFR. Product #320-0605 AvailabilityIn Stock: Ships within 24 hours
Product Style 4 3/8" Stroke / Full width wristpin / No balancer gear J&P Cycles Item #10089983 Catalog Number590-0401 Store Sku MFR. Product #320-0619 AvailabilityCloseout: This product is no longer available
Product Style 4 5/8" Stroke / Full width wristpin / No balancer gear J&P Cycles Item #10089984 Catalog Number590-0402 Store Sku MFR. Product #320-0620 AvailabilityCloseout: This product is no longer available
Product Style Tapered wristpin / Balancer gear / 4 3/8" Stroke J&P Cycles Item #10089974 Catalog Number590-0392 Store Sku MFR. Product #320-0601 AvailabilityIn Stock: Ships within 24 hours
Product Style Tapered wristpin / No balancer gear / 4 3/8" Stroke J&P Cycles Item #10089980 Catalog Number590-0398 Store Sku MFR. Product #320-0616 AvailabilityCloseout: This product is no longer available
Product Style 4 5/8" Stroke / Tapered wristpin / No balancer gear J&P Cycles Item #10089981 Catalog Number590-0399 Store Sku MFR. Product #320-0617 AvailabilityCloseout: This product is no longer available

This product DOES NOT FIT your 2005 Honda CBR1000RR ABS

This Product Fits
Harley Davidson
Electra Glide Standard FLHT 2019, 2020, 2021, 2022
Electra Glide Ultra Classic FLHTCU/I 2017, 2018, 2019
Electra Glide Ultra Limited CVO/SE FLHTKSE 2017, 2018, 2019, 2020, 2021
Electra Glide Ultra Limited FLHTK 2017-2024
Electra Glide Ultra Limited Low FLHTKL 2017, 2018, 2019
Road Glide CVO/SE FLTRXSE 2018, 2019, 2020, 2021, 2022
Road Glide FLTRX 2017-2023
Road Glide Limited CVO FLTRKSE 2022, 2023
Road Glide Limited FLTRK 2020, 2021, 2022, 2023, 2024
Road Glide Special FLTRXS 2017-2023
Road Glide ST FLTRXST 2022, 2023
Road Glide Ultra FLTRU 2017, 2018, 2019
Road King FLHR/I 2017-2022
Road King Special FLHRXS 2017-2025
Softail Breakout 114 FXBRS 2018, 2019, 2020
Softail Breakout 117 FXBR 2023, 2024, 2025
Softail Breakout FXBR 2018, 2019
Softail Deluxe FLDE 2018, 2019, 2020
Softail Fat Bob 114 FXFBS 2018-2023
Softail Fat Bob FXFB 2018, 2019
Softail Fat Boy 114 FLFBS 2018-2024
Softail Fat Boy FLFB 2018, 2019, 2025
Softail FXDR 114 FXDRS 2019, 2020
Softail Heritage Classic 114 FLHCS 2018-2024
Softail Heritage Classic FLHC 2018, 2019, 2020, 2021, 2025
Softail Low Rider FXLR 2018, 2019, 2020
Softail Low Rider S FXLRS 2020-2025
Softail Low Rider ST FXLRST 2022, 2023, 2024, 2025
Softail Slim FLSL 2018, 2019, 2020, 2021
Softail Sport Glide FLSB 2018, 2019, 2020, 2021
Softail Standard FXST 2020, 2021, 2022, 2023, 2024
Softail Street Bob 114 FXBBS 2021, 2022, 2023, 2024
Softail Street Bob FXBB 2018, 2019, 2020, 2025
Street Glide CVO/SE FLHXSE 2017-2022
Street Glide FLHX/I 2017-2023
Street Glide Special FLHXS 2017-2023
Street Glide ST FLHXST 2022, 2023

S&S Cycle Flywheel Assembly For Harley Milwaukee Eight 2017-2025 Instructions

Product Description
Part Numbers
Fitment
Instructions
0 Customer Reviews
0 Questions & 0 Answers
Join now & get rewarded!

Get Free 2-Day Shipping and $15 + 5% RPM Cash on this order.

Already enrolled in RPM? Link your existing membership here.

Related Videos

The Indian Larry Twisted Frame Chopper | J&P Custom Motorcycle Builds

150-Horsepower Harley-Davidson | J&P: Custom Motorcycle Builds

124 Cubic Inch Twin Cam FXR | J&P: Custom Motorcycle Builds

The First 8 Things You Should Change When Buying a Harley Davidson

Reviews & Questions

$39.99/yr.
Spend Less. Ride More.
  • 5% RPM Cash Back*
  • 10% Off Over 70 Brands
  • $15 in RPM Cash When You Join
  • Free 2-Day Shipping & Free Returns*
  • And more!
Become a member today! Add RPM to cart