S&S CYCLE Cylinder Kit - 128" Big Bore - Wrinkle Black w/Highlights - 114"/117" M8 - Harley-Davidson '17-'25 - 910-0684A
by S&S CYCLE
SKU 910-0684A
Original price
$3,033.95
-
Original price
$3,033.95
Original price
$3,033.95
$3,033.95
-
$3,033.95
Current price
$3,033.95
🚚 Estimated Delivery: 09 Jul - 16 Jul
- Big Bore kit yields excellent results with stock cylinder heads
- Easy installation no need to bore or split existing cases, just swap the cylinders (unless otherwise noted)
- Cylinders are constructed from premium aluminum castings with cast-in iron liners
- Kit includes cylinders, pistons, rings and gaskets (head, base and exhaust)
- Made in the USA
- Notes
- Project requires a skilled technician. It is the responsibility of the person assembling the parts to check all clearances and assembly specifications.
- 4.250" bore
- Updated profile with stock bolt pattern 4.840"
- Made in the USA
Notes: Works with stock crankcases.
Note: Not recommended for FL Trike.
Fitment Guide
| 2025 | Harley-Davidson | Softail Fat Boy FLFB | - | - |
| 2025 | Harley-Davidson | Softail Low Rider ST FXLRST | - | - |
| 2025 | Harley-Davidson | FLHXU Street Glide Ultra | - | - |
| 2025 | Harley-Davidson | Road Glide Custom FLTRX | - | - |
| 2025 | Harley-Davidson | Street Glide EFI FLHX | - | - |
| 2025 | Harley-Davidson | Softail Low Rider S FXLRS | - | - |
| 2025 | Harley-Davidson | Softail Heritage Classic FLHC | - | - |
| 2025 | Harley-Davidson | Softail Breakout FXBR | - | - |
| 2024-2025 | Harley-Davidson | Road Glide Police FLTRXP | - | - |
| 2024 | Harley-Davidson | FLI Hydra-Glide Revival | - | - |
| 2023-2025 | Harley-Davidson | FXBR Breakout 117 | - | - |
| 2023 | Harley-Davidson | FLHFB Electra Glide Highway King | - | - |
| 2022-2025 | Harley-Davidson | FXLRS Low Rider S 117 | - | - |
| 2022-2025 | Harley-Davidson | FXLRST Low Rider ST 117 | - | - |
| 2022-2023 | Harley-Davidson | FLHXST Street Glide ST | - | - |
| 2022-2023 | Harley-Davidson | FLTRXST Road Glide ST | - | - |
| 2022-2023 | Harley-Davidson | FLTRKSE CVO Road Glide Limited | - | - |
| 2022, 2025 | Harley-Davidson | Softail Street Bob FXBB | - | - |
| 2022 | Harley-Davidson | FXRST Low Rider El Diablo 117 | - | - |
| 2021-2024 | Harley-Davidson | FXBBS Street Bob 114 | - | - |
| 2021 | Harley-Davidson | FLH Electra Glide Revival | - | - |
| 2020-2024 | Harley-Davidson | FLTRK Road Glide Limited | - | - |
| 2020-2021 | Harley-Davidson | FXLRS Low Rider S 114 | - | - |
| 2019-2022 | Harley-Davidson | FLHT Electra Glide Standard | - | - |
| 2019-2020 | Harley-Davidson | FXDRS FXDR 114 | - | - |
| 2018-2024 | Harley-Davidson | FLHCS Heritage Classic 114 | - | - |
| 2018-2024 | Harley-Davidson | FLFBS Fat Boy 114 | - | - |
| 2018-2023 | Harley-Davidson | FXFBS Fat Bob 114 | - | - |
| 2018-2020 | Harley-Davidson | FXBRS Breakout 114 | - | - |
| 2017-2025 | Harley-Davidson | FLHRXS Road King Special | - | - |
| 2017-2025 | Harley-Davidson | FLTRX Road Glide | - | - |
| 2017-2025 | Harley-Davidson | Electra Glide Police FLHTPI | - | - |
| 2017-2025 | Harley-Davidson | FLHX Street Glide | - | - |
| 2017-2025 | Harley-Davidson | Road King Police FLHP | - | - |
| 2017-2024 | Harley-Davidson | FLHTK Ultra Limited | - | - |
| 2017-2023 | Harley-Davidson | FLHXSE CVO Street Glide | - | - |
| 2017-2023 | Harley-Davidson | FLTRXS Road Glide Special | - | - |
| 2017-2023 | Harley-Davidson | FLHXS Street Glide Special | - | - |
| 2017-2022 | Harley-Davidson | FLHR Road King | - | - |
| 2017-2021 | Harley-Davidson | FLHTKSE CVO Limited | - | - |
| 2017-2019 | Harley-Davidson | FLHTKL Ultra Limited Low | - | - |
| 2017-2019 | Harley-Davidson | FLHTCU Electra Glide Ultra Classic | - | - |
| 2017-2019 | Harley-Davidson | FLTRU Road Glide Ultra | - | - |
Specs
| Product Name | Cylinder Kit |
| Style | Bolt-On |
| Model | Big Bore |
| Color/Finish | Highlighted Fins / Wrinkle Black |
| Bore Size | 4.25" |
| Displacement | 128" |
| Stroke Length | 4.500" |
| Compression Ratio | 11.0:1 |
| Units | Kit |
| Riding Style | Street |
Delivery Info
Please Note - Warehouse Locations For This Part -
S&S CYCLE Cylinder Kit - 128" Big Bore - Wrinkle Black w/Highlights - 114"/117" M8 - Harley-Davidson '17-'25 - 910-0684A
Gold Coast Warehouse- If your parts are in stock at our Gold Coast warehouse at the time of order, they will be shipped within 24hrs.
Supplier Warehouse - 2-3 Week Delivery- If your parts are located at our Supplier Warehouse, Delivery ETA is approx 2-3 weeks, as the parts are likely coming from our USA supplier warehouse. We will notify you once we receive it in Gold Coast warehouse and its on its way to you.