Product Description
S&S 128" Power Package Big Bore Kit Water-Cooled for 114"/117" Harley M8
128" Power Package Kit. Water cooled.
Fits: 2017-2026 Harley M8 Models with Water-Cooled Engines (Except CVO 121")
- 114" to 128" big bore kit; 114" and 117" CVO to 128" big bore kit
- Bolt-in kit, case maching not required
- Forged pistons
- Includes oil pump/cam plate, pushrods with chrome covers, tappets, tappet cuffs, S&S 550 camshaft, and valve springs
NOTE: Not for 121" CVO Models
Fitment
| 2025 | Harley-Davidson | Street Glide Ultra FLHXU | - | - |
| 2025 | Harley-Davidson | Tri Glide Ultra Classic FLHTCUTG | - | - |
| 2022-2023 | Harley-Davidson | FLTRKSE CVO Road Glide Limited | - | - |
| 2022 | Harley-Davidson | FLHTCUTG Tri Glide Ultra G.I. | - | - |
| 2020-2024 | Harley-Davidson | FLTRK Road Glide Limited | - | - |
| 2020-2022 | Harley-Davidson | FLHTCUTGSE CVO Tri Glide | - | - |
| 2017-2025 | Harley-Davidson | FLHTCUTG Tri Glide Ultra | - | - |
| 2017-2024 | Harley-Davidson | FLHTK Ultra Limited | - | - |
| 2017-2021 | Harley-Davidson | FLHTKSE CVO Limited | - | - |
| 2017-2019 | Harley-Davidson | FLHTKL Ultra Limited Low | - | - |
Additional Information
| MPN | 310-1107C |
| MPN | 310-1101C |
| MPN | 310-1102C |
| MPN | 310-1118C |