The tendency of the stock inner primary bearing race on late model big twins to shift on the transmission mainshaft under high torque loads, also known as "walking" of the race, can cause destruction of the transmission mainshaft seal, and ultimately the mainshaft seal, output gear and output gear bearing. The S&S inner primary bearing race features an extra step on the inside diameter that acts as a stop on the transmission mainshaft. When the race is pressed on to the shaft, the step will not allow the race to move inward toward the mainshaft seal. The improved S&S bearing race is a must for any high performance application.
This Part Fits:
| Year |
Make |
Model |
Submodel |
| 2008-2021 |
Harley-Davidson |
FLHR Road King |
Base |
| 2008-2013 |
Harley-Davidson |
FLHRC Road King Classic |
Base |
| 2008-2009,2019-2021 |
Harley-Davidson |
FLHT Electra Glide Standard |
Base |
| 2008-2013 |
Harley-Davidson |
FLHTC Electra Glide Classic |
Base |
| 2008-2019 |
Harley-Davidson |
FLHTCU Electra Glide Ultra Classic |
Base |
| 2009-2013 |
Harley-Davidson |
FLHTCUTG Tri Glide Ultra Classic |
Base |
| 2015-2019 |
Harley-Davidson |
FLHTKL Ultra Limited Low |
Base |
| 2014-2021 |
Harley-Davidson |
FLHTKSE CVO Limited |
Base |
| 2008-2021 |
Harley-Davidson |
FLHX Street Glide |
Base |
| 2014-2021 |
Harley-Davidson |
FLHXS Street Glide Special |
Base |
| 2010,2015-2021 |
Harley-Davidson |
FLHXSE CVO Street Glide |
Base |
| 2010-2011 |
Harley-Davidson |
FLHXXX Street Glide Trike |
Base |
| 2012-2017 |
Harley-Davidson |
FLS Softail Slim |
Base |
| 2016-2017 |
Harley-Davidson |
FLSS Softail Slim S |
Base |
| 2008-2017 |
Harley-Davidson |
FLSTC Heritage Softail Classic |
Base |
| 2008-2017 |
Harley-Davidson |
FLSTF Fat Boy |
Base |
| 2010-2017 |
Harley-Davidson |
FLSTFB Fat Boy Lo |
Base |
| 2016-2017 |
Harley-Davidson |
FLSTFBS Fat Boy S |
Base |
| 2008-2011 |
Harley-Davidson |
FLSTSB Cross Bones |
Base |
| 2010 |
Harley-Davidson |
FLSTSE CVO Softail Convertible |
Base |
| 2008-2010 |
Harley-Davidson |
FXD Dyna Super Glide |
Base |
| 2008-2009,2014-2017 |
Harley-Davidson |
FXDL Dyna Low Rider |
Base |
| 2008,2010-2017 |
Harley-Davidson |
FXDWG Dyna Wide Glide |
Base |
| 2008-2009 |
Harley-Davidson |
FXSTB Night Train |
Base |
| 2008-2010 |
Harley-Davidson |
FXSTC Softail Custom |
Base |
| 2009 |
Harley-Davidson |
FXSTSSE3 CVO Softail Springer |
Base |
