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The 128" Power Package delivers big-bore performance with bolt-in convenience for compatible models. 🔧🔥
- 114" to 128" big bore kit, including fitment for 114" and 117" CVO up to 128".
- Bolt-in kit; case machining not required.
- Forged pistons; includes oil pump/cam plate, pushrods with chrome covers, tappets, tappet cuffs, S&S 550 camshaft, and valve springs.
- Not for 121" CVO models.
Installation tip: have a qualified technician verify fitment and torque specifications before riding. 🛠️
: 0904-0141
In Stock
Data sheet
- Units
- Kit
- Color/Finish
- Highlighted Fins, Black Granite
- Brand
- S&S CYCLE
- Bore Size
- 4,250"
- Displacement
- 128"
- Cooling System
- Water Cooled
- Stroke Length
- 4,500"
- Compression Ratio
- 11.1:1
- Cam Drive Type
- Chain
This product fits the following vehicles. Use the filters below to narrow down the list if needed.
| Manufacturer | Model | Family | Year | Notes |
|---|---|---|---|---|
| Harley Davidson | Electra Glide Highway King 114 | Touring | 2023 | |
| Harley Davidson | Trike Tri Glide Ultra Classic 107 | Trike | 2017 | |
| Harley Davidson | Tri Glide Ultra 107 | Trike | 2018 | |
| Harley Davidson | Tri Glide Ultra 107 | Trike | 2019 | |
| Harley Davidson | Tri Glide Ultra 114 | Trike | 2020 | |
| Harley Davidson | Tri Glide Ultra 114 | Trike | 2021 | |
| Harley Davidson | Tri Glide Ultra 114 | Trike | 2022 | |
| Harley Davidson | Tri Glide Ultra 114 | Trike | 2023 | |
| Harley Davidson | Tri Glide Ultra 114 | Trike | 2024 | |
| Harley Davidson | Tri Glide Ultra 114 | Trike | 2025 | |
| Harley Davidson | Tri Glide Ultra CVO 117 | CVO | 2020 | |
| Harley Davidson | Tri Glide Ultra CVO 117 | CVO | 2021 | |
| Harley Davidson | Tri Glide CVO 117 | CVO | 2022 | |
| Harley Davidson | Electra Glide Ultra Limited 107 | Touring | 2017 | |
| Harley Davidson | Ultra Limited Shrine Edition 107 | Touring | 2018 | |
| Harley Davidson | Ultra Limited Shrine Edition 114 | Touring | 2019 | |
| Harley Davidson | Ultra Limited Shrine Edition 114 | Touring | 2020 | |
| Harley Davidson | Ultra Limited Shrine Edition 114 | Touring | 2021 | |
| Harley Davidson | Ultra Limited Shrine Edition 114 | Touring | 2022 | |
| Harley Davidson | Ultra Limited Shrine Edition 114 | Touring | 2023 | |
| Harley Davidson | Glide Ultra Limited 114 | Touring | 2024 | |
| Harley Davidson | Electra Glide Ultra Limited Low 107 | Touring | 2017 | |
| Harley Davidson | Ultra Limited Low 107 | Touring | 2018 | |
| Harley Davidson | Ultra Limited Low 114 | Touring | 2019 | |
| Harley Davidson | Electra Glide Ultra Limited CVO 114 | CVO | 2017 | |
| Harley Davidson | Ultra Limited CVO 117 | CVO | 2019 | |
| Harley Davidson | Ultra Limited CVO 117 | CVO | 2020 | |
| Harley Davidson | Ultra Limited CVO 117 | CVO | 2021 | |
| Harley Davidson | Ultra Limited CVO Anniversary 117 | Touring | 2018 | |
| Harley Davidson | Street Glide CVO 114 | CVO | 2017 | |
| Harley Davidson | Street Glide CVO 117 | CVO | 2018 | |
| Harley Davidson | Street Glide CVO 117 | CVO | 2020 | |
| Harley Davidson | Street Glide CVO 117 | CVO | 2021 | |
| Harley Davidson | Road Glide Limited 114 | Touring | 2020 | |
| Harley Davidson | Road Glide Limited 114 | Touring | 2021 | |
| Harley Davidson | Road Glide Limited 114 | Touring | 2022 | |
| Harley Davidson | Road Glide Limited 114 | Touring | 2023 | |
| Harley Davidson | Road Glide Limited 114 | Touring | 2024 | |
| Harley Davidson | Road Glide Limited CVO 117 | CVO | 2022 | |
| Harley Davidson | Road Glide Limited Anniversary CVO 117 | CVO | 2023 | |
| Harley Davidson | Road Glide Ultra 107 | Touring | 2017 | |
| Harley Davidson | Road Glide Ultra 107 | Touring | 2018 | |
| Harley Davidson | Road Glide Ultra 114 | Touring | 2019 | |
| Harley Davidson | Road Glide CVO 117 | CVO | 2018 | |
| Harley Davidson | Road Glide CVO 117 | CVO | 2020 | |
| Harley Davidson | Road Glide CVO 117 | CVO | 2021 | |
| Harley Davidson | Road Glide CVO 117 | CVO | 2022 |