Super Duty Series includes:. Anodized top ring groove and crown. Line2Line abradable skirt coating applied to .003" total thickness for a zero initial fit to allow coating to hone in for a tight quiet running clearance. Round wire locks. Steel nitride top ring with a Ductile Napier second. Forced wrist pin oiling. Flat Top 1.2cc. Compression Height 1.083". Factory 117" Cylinders can safely be bored to 4.125" through 4.165". Valve pockets sized to accommodate 1mm oversize valves.
This Part Fits:
| Year |
Make |
Model |
Submodel |
| 2017-2019 |
Harley-Davidson |
Electra Glide |
Ultra Classic FLHTCU |
| 2017-2019 |
Harley-Davidson |
Road Glide |
Ultra FLTRU |
| 2017-2019 |
Harley-Davidson |
Ultra Limited Low |
FLHTKL |
| 2017-2021 |
Harley-Davidson |
CVO |
Limited FLHTKSE |
| 2017-2022 |
Harley-Davidson |
Road King |
FLHR |
| 2017-2023 |
Harley-Davidson |
Freewheeler |
FLRT |
| 2017-2023 |
Harley-Davidson |
Road Glide |
FLTRX |
| 2017-2023 |
Harley-Davidson |
Road Glide |
Special FLTRXS |
| 2017-2023 |
Harley-Davidson |
Road King |
Special FLHRXS |
| 2017-2023 |
Harley-Davidson |
Street Glide |
CVO FLHXSE |
| 2017-2023 |
Harley-Davidson |
Street Glide |
FLHX |
| 2017-2023 |
Harley-Davidson |
Street Glide |
Special FLHXS |
| 2017-2023 |
Harley-Davidson |
Ultra Limited |
FLHTK |
| 2018-2019 |
Harley-Davidson |
Breakout |
FXBR 107 |
| 2018-2019 |
Harley-Davidson |
Fat Bob |
FXFB 107 |
| 2018-2019 |
Harley-Davidson |
Fat Boy |
FLFB 107 |
| 2018-2020 |
Harley-Davidson |
Breakout |
FXBRS 114 |
| 2018-2020 |
Harley-Davidson |
Deluxe |
FLDE 107 |
| 2018-2020 |
Harley-Davidson |
Low Rider |
FXLR 107 |
| 2018-2020 |
Harley-Davidson |
Street Bob |
FXBB 107 |
| 2018-2021 |
Harley-Davidson |
Heritage Classic |
FLHC 107 |
| 2018-2021 |
Harley-Davidson |
Softail |
Slim FLSL 107 |
| 2018-2021 |
Harley-Davidson |
Sport Glide |
FLSB 107 |
| 2018-2023 |
Harley-Davidson |
CVO Road Glide |
FLTRXSE |
| 2018-2023 |
Harley-Davidson |
Fat Bob |
FXFBS 114 |
| 2018-2023 |
Harley-Davidson |
Fat Boy |
FLFBS 114 |
| 2018-2023 |
Harley-Davidson |
Heritage Classic |
FLHCS 114 |
| 2019-2020 |
Harley-Davidson |
FXDR |
FXDRS 114 |
| 2019-2022 |
Harley-Davidson |
Electra Glide |
Standard FLHT |
| 2019-2022 |
Harley-Davidson |
Tri Glide |
Ultra FLHTCUTG |
| 2020-2021 |
Harley-Davidson |
Low Rider S |
FXLRS 114 |
| 2020-2022 |
Harley-Davidson |
CVO Tri Glide |
FLHTCUTGSE |
| 2020-2023 |
Harley-Davidson |
Road Glide |
Limited FLTRK |
| 2020-2023 |
Harley-Davidson |
Softail |
Standard FXST 107 |
| 2023 |
Harley-Davidson |
Tri Glide |
Ultra Classic FLHTCUTG |
