FILTER
BRAND

Softail Parts

4667 products · FREE shipping on orders $200+

Softail parts for Fat Boy, Heritage, Low Rider and more. Pick your year to confirm fit.

About Softail Parts

Softail is a big family: Low Rider, Fat Bob, Street Bob, Breakout, Heritage, Fat Boy and more, with the Milwaukee-Eight frame from 2018 and the earlier Twin Cam and Evolution Softails before it. This page is the hub for all of them, and it is the quickest way to get from "I ride a Softail" to the right model and the right year.

Start with your model

Performance upgrades that carry across the Softail line

The 2018 and newer Softail frame changed the fitment of a lot of parts, so a lot of exhaust, shock and brake listings are grouped by model year. Within a generation, the same upgrades tend to work across several models.

Fitment tips

Match the part to your exact model and year. A part that fits a 2018 Fat Bob may not fit an older Twin Cam Softail, and a fender or seat that works on a Street Bob may not suit a Fat Boy. Use the year bar to filter, then read the fitment line on each product. Dyna, Sportster and touring models are separate bikes and are not part of this page. If you ride a touring model, the touring parts collection is your starting point.

Softail exhaust, tuning and engine upgrades are sold for off-road and closed-course use only, and your local noise and emissions rules still apply to the bike.

Softail Parts FAQ

Which Softail models are included?
The collection covers the Softail family: Low Rider, Fat Bob, Street Bob, Breakout, Fat Boy, Heritage Classic and related models. Use the model links at the top of the page to jump to a specific bike. Dyna models, including the Dyna Low Rider and Dyna Street Bob, are different bikes and are not part of this page.
What changed with the 2018 Softail?
Harley-Davidson introduced a new Softail frame and the Milwaukee-Eight engine for 2018. Many parts for earlier Twin Cam Softails will not fit.
Will a 2018+ part fit a 2017 Softail?
Usually not. Check the year range and model list on the product page before you order.
What is the best first upgrade?
A tune and exhaust for airflow, then shocks and brakes for handling. See exhaust and suspension.
Can I put a big-bore kit on a Milwaukee-Eight Softail?
Yes, big-bore and displacement kits exist for the Milwaukee-Eight and they need a matching tune. Browse engine. Engine parts are sold for off-road and closed-course use only.