New to Powersport Superstore? Try our Year-Make-Model search and find the right parts for your ride by clicking "My Garage" on the upper-right! ➡

S&S Cycle 320-0350 Flywheel Assembly - 4 3/8in. Stroke

SKU: 5199905

S&S Cycle 320-0350 Flywheel Assembly - 4 3/8in. Stroke

S&S Cycle
$1,623.30
$1,623.30 $1,795.95
Sale Sold out
/
Shipping calculated at checkout.
In stock and ready for shipping
This is a pre order item. We will ship it when it comes in stock.
Flywheel assemblies are designed for use with Timken-style sprocket shaft bearings. Fit directly in stock crankcases with no modifications. Heat treated 4140 material is harder and 114% stronger than stock. Integral mainshafts-eliminates two potential points of weakness. Consistent balance and precision machining. Truer flywheels and less vibration. Made in the USA.

Vehicle Fitment:

2006 Harley Davidson FXDBI Street Bob
2006 Harley Davidson FXDCI Super Glide Custom
2006 Harley Davidson FXDI Dyna Super Glide
2006 Harley Davidson FXDI35 Dyna 35th Anniversary Super Glide
2006 Harley Davidson FXDLI Dyna Low Rider
2006 Harley Davidson FXDWGI Dyna Wide Glide
Secure, Trusted, and Encrypted

Protected by industry-leading 256-bit SSL encryption and backed by Shopify’s PCI DSS–compliant infrastructure. Every page, click, and transaction is encrypted and monitored for threats — so you can shop with confidence knowing your data stays protected.

Parts for Every Machine

We stock aftermarket parts, gear and accessories for motorcycles, ATVs, UTVs, snowmobiles, personal watercraft, and even performance cars — all backed by expert support and live inventory.

Real-Time Fitment Accuracy

Search by Year, Make, and Model with confidence. Our proprietary vehicle fitment system ensures you’re only shown what fits — no guesswork, no returns — just parts that fit.

Fast, Trackable Shipping

We ship from over 20 U.S. warehouses — often same or next business day. Every order includes tracking and transparent fulfillment updates from start to finish, all processed through a secure, encrypted checkout.

Quick Links

Ride With Us. Stay Connected.

Follow us for real-time fitment updates, gear drops, and pro tips from the garage. No spam, just parts, tech, and news for riders like you.

Your Garage

Add a Vehicle