124" Power Package for Oil Cooled 107" M8 — 4.250" bore, 11:1 compression

S&S CYCLE 124" Power Package for Oil Cooled 107" M8 — 4.250" bore, 11:1 compression – 18-23 Softail, 17-23 Touring, 17-19 Trike

S&S CYCLE
0904-0058
310-1053A
Bolt-on big bore power package with forged pistons, billet construction, improved oil management, and upgraded valvetrain components.
Hurry! only 9 items left in stock.
€2,488.20
€3,128.03
Save €639.83
local_shipping In stock, ships in 2-3 days
Quantity

  Delivery policy

In stock items will be shipped within 1-3 days.

  Return policy

You can return the products within 14 days for a full refund, check our returns policy.

Made in the USA, this bolt-on big bore kit is engineered to improve power and reliability with forged pistons and precision-machined billet aluminum components.

The package includes Quikee pushrods, S&S precision tappets with hard-anodized tappet cuffs, and high-performance valve springs matched to S&S cam profiles designed for big bore use.

Oil management features independent scavenge sections for the flywheel cavity and cam chest, debris screens in both scavenge pickups, a magnet in the cam chest to help stop debris, and removable passage plugs for servicing.

Design improvements such as increased feed and scavenge flow capacity and an adjustable pressure relief valve (adjustable with the unit installed) help maintain oiling under high-load conditions.

S&S does not recommend compression ratios higher than 10:1 for Tri Glide® or other three wheel models (including conversions) due to extra loads caused by the lugging nature of these bikes. Detonation and subsequent engine damage may result.

: 0904-0058
In Stock

Data sheet

Type
Engine
Units
Kit
Color/Finish
Highlighted Fins, Wrinkle Black
Style
Big Bore
Brand
S&S CYCLE
Bore Size
4,250"
Displacement
124"
Cooling System
Oil Cooled
Compression Ratio
11.0:1
Cam Drive Type
Gear

Shipping Policy

Shipping Areas:

We ship to:

  • Spain (Peninsula and Balearic Islands)
  • European Union countries

We do not ship to the Canary Islands, Ceuta, or Melilla.

Shipping Times:

  • Spain (Peninsula): 2–4 business days
  • Balearic Islands: 3–5 business days
  • EU countries: 3–7 business days depending on destination

Shipping Costs:

Shipping costs are calculated automatically at checkout based on destination and weight.

Free shipping may be offered for qualifying orders, as specified on our website.

Order Processing:

Orders are processed within 1–2 business days after payment confirmation. Orders placed on weekends or public holidays are processed the next business day.

Delivery Issues:

If your order is delayed or arrives damaged, you must notify us within 14 calendar days. We will investigate the issue and offer a resolution in accordance with applicable consumer protection laws.

Return & Withdrawal Policy

Right of Withdrawal:

In accordance with Royal Legislative Decree 1/2007 (Ley de Defensa de los Consumidores y Usuarios), you have the right to withdraw from your purchase within 14 calendar days from the date of receipt, without giving any reason.

To exercise this right, contact us via email or through our website, providing your order number and contact details.

Return Conditions:

  • Products must be unused, in original condition and packaging.
  • Return shipping costs are the responsibility of the customer, unless the product is defective or sent in error.
  • Refunds will be issued within 14 days of receiving the returned goods.

Items Excluded from Return:

  • Custom or personalized products
  • Sealed items that were unsealed after delivery and are unsuitable for return due to hygiene (e.g. cosmetics, personal care)
  • Digital content delivered electronically once download or streaming has begun

If you want to return an item, please contact us first to give you detailed instructions.

This product fits the following vehicles. Use the filters below to narrow down the list if needed.

Manufacturer Model Family Year Notes
Harley Davidson Softail Deluxe 107 Softail 2018 Gear Drive
Harley Davidson Softail Deluxe 107 Softail 2019 Gear Drive
Harley Davidson Softail Deluxe 107 Softail 2020 Gear Drive
Harley Davidson Softail Fat Boy 107 Softail 2018 Gear Drive
Harley Davidson Softail Fat Boy 107 Softail 2019 Gear Drive
Harley Davidson Softail Fat Boy 107 Softail 2020 Gear Drive
Harley Davidson Softail Heritage Classic 107 Softail 2021
Harley Davidson Softail Heritage Classic 107 Softail 2022
Harley Davidson Softail Heritage Classic 107 Softail 2018 Gear Drive
Harley Davidson Softail Heritage Classic 107 Softail 2019 Gear Drive
Harley Davidson Softail Heritage Classic 107 Softail 2020 Gear Drive
Harley Davidson Road King 107 Touring 2017 Gear Drive
Harley Davidson Road King 107 Touring 2018 Gear Drive
Harley Davidson Road King 107 Touring 2019 Gear Drive
Harley Davidson Road King 107 Touring 2021
Harley Davidson Road King 107 Touring 2022
Harley Davidson Road King 107 Touring 2017 Gear Drive
Harley Davidson Road King 107 Touring 2018 Gear Drive
Harley Davidson Road King 107 Touring 2019 Gear Drive
Harley Davidson Road King 107 Touring 2020 Gear Drive
Harley Davidson Road King Classic 107 Touring 2017 Gear Drive
Harley Davidson Road King Classic 107 Touring 2018 Gear Drive
Harley Davidson Road King Classic 107 Touring 2019 Gear Drive
Harley Davidson Road King Special 107 Touring 2017 Gear Drive
Harley Davidson Road King Special 107 Touring 2018 Gear Drive
Harley Davidson Electra Glide Standard 107 Touring 2021
Harley Davidson Electra Glide Standard 107 Touring 2022
Harley Davidson Electra Glide Standard 107 Touring 2019 Gear Drive
Harley Davidson Electra Glide Standard 107 Touring 2020 Gear Drive
Harley Davidson Electra Glide Ultra Classic 107 Touring 2019 Gear Drive
Harley Davidson Trike Tri Glide Ultra Classic 107 Trike 2017 Gear Drive
Harley Davidson Tri Glide Ultra Anniversary 107 Trike 2018 Gear Drive
Harley Davidson Tri Glide Ultra 107 Trike 2019 Gear Drive
Harley Davidson Street Glide 107 Touring 2017 Gear Drive
Harley Davidson Street Glide 107 Touring 2018 Gear Drive
Harley Davidson Street Glide 107 Touring 2019 Gear Drive
Harley Davidson Street Glide 107 Touring 2021
Harley Davidson Street Glide 107 Touring 2022
Harley Davidson Street Glide 107 Touring 2023
Harley Davidson Street Glide 107 Touring 2017 Gear Drive
Harley Davidson Street Glide Anniversary 107 Touring 2018 Gear Drive
Harley Davidson Street Glide 107 Touring 2019 Gear Drive
Harley Davidson Street Glide 107 Touring 2020 Gear Drive
Harley Davidson Street Glide Special 107 Touring 2017 Gear Drive
Harley Davidson Street Glide Special 107 Touring 2018 Gear Drive
Harley Davidson Freewheeler 107 Trike 2017 Gear Drive
Harley Davidson Freewheeler 107 Trike 2018 Gear Drive
Harley Davidson Freewheeler 107 Trike 2019 Gear Drive
Harley Davidson Softail Sport Glide 107 Softail 2021
Harley Davidson Softail Sport Glide 107 Softail 2022
Harley Davidson Softail Sport Glide 107 Softail 2023
Harley Davidson Softail Sport Glide 107 Softail 2018 Gear Drive
Harley Davidson Softail Sport Glide 107 Softail 2019 Gear Drive
Harley Davidson Softail Sport Glide 107 Softail 2020 Gear Drive
Harley Davidson Softail Slim 107 Softail 2021
Harley Davidson Softail Slim 107 Softail 2018 Gear Drive
Harley Davidson Softail Slim 107 Softail 2019 Gear Drive
Harley Davidson Softail Slim 107 Softail 2020 Gear Drive
Harley Davidson Road Glide 107 Touring 2017 Gear Drive
Harley Davidson Road Glide 107 Touring 2018 Gear Drive
Harley Davidson Road Glide 107 Touring 2019 Gear Drive
Harley Davidson Road Glide 107 Touring 2021
Harley Davidson Road Glide 107 Touring 2022
Harley Davidson Road Glide 107 Touring 2023
Harley Davidson Road Glide 107 Touring 2017 Gear Drive
Harley Davidson Road Glide 107 Touring 2018 Gear Drive
Harley Davidson Road Glide 107 Touring 2019 Gear Drive
Harley Davidson Road Glide 107 Touring 2020 Gear Drive
Harley Davidson Road Glide Special 107 Touring 2017 Gear Drive
Harley Davidson Road Glide Special 107 Touring 2018 Gear Drive
Harley Davidson Softail Street Bob 107 Softail 2018 Gear Drive
Harley Davidson Softail Street Bob 107 Softail 2019 Gear Drive
Harley Davidson Softail Street Bob 107 Softail 2020 Gear Drive
Harley Davidson Softail Breakout 107 Softail 2018 Gear Drive
Harley Davidson Softail Breakout 107 Softail 2019 Gear Drive
Harley Davidson Softail Breakout 107 Softail 2020 Gear Drive
Harley Davidson Softail Fat Bob 107 Softail 2021
Harley Davidson Softail Fat Bob 107 Softail 2018 Gear Drive
Harley Davidson Softail Fat Bob 107 Softail 2019 Gear Drive
Harley Davidson Softail Low Rider 107 Softail 2018 Gear Drive
Harley Davidson Softail Low Rider 107 Softail 2019 Gear Drive
Harley Davidson Softail Low Rider 107 Softail 2020 Gear Drive
Harley Davidson Softail Standard Softail 2021
Harley Davidson Softail Standard Softail 2021
Harley Davidson Softail Standard Softail 2022
Harley Davidson Softail Standard Softail 2023