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200,000+ Parts & Accessories
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We know when customers receive their orders there is always the possibility of needing to exchange or return items for a refund. Rest assured if you need to, we make it simple. See T&C's for more details.

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Price Match Promise 
We offer a price match promise on all items we sell. Use the "Seen it cheaper?" option found on the product pages to request a price match.

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ARH Custom Custom Motorcycle Parts and Accessories ARH Custom Custom Motorcycle Parts and Accessories

S&S Cycle 132 inch Big Bore Cylinder Kit Non-Highlighted For 2017-2023 Softail & Touring (910-0846)

  • S&S Cycle 132 inch Big Bore Cylinder Kit Non-Highlighted For 2017-2023 Softail & Touring (910-0846)
$1,885.25
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Seen it cheaper elsewhere?

Our Price Promise

Seen this item cheaper on another website? Let us try and match it!

We do our upmost to keep our prices competitive but due to the number of items we sell, you may occasionally find a better price advertised elsewhere. If you have seen a cheaper price on another website let us know by filling in this form. If we’re able to match the price, we’ll look to respond via email with a unique discount code within 1 hour (during working hours) so you're not waiting too long.

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Please note:

  1. The item must be identical to the one on our website listing and must show as being available.
  2. Price match applies to items sourced from authorised UK retailers only, not private sellers.
  3. Prices will only be matched from UK based websites with prices in GBP.
  4. ARH Custom reserve the right to price match only one of each item per customer.
  5. ARH Custom reserve the right to withdraw the price match policy at any time.

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EU stock Estimated shipping date between 2 Jan and 7 Jan.

Usually ships in 2-5 business days

All orders are shipped out of our UK premises. Estimated shipping date between 2 Jan and 7 Jan.

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Instructions

The biggest Big Bore possible with a slip in kit! The S&S 4.320" bore cylinder kit takes your 107" M8 to 129" and the 114" to 132".

  • Huge bore increase means huge power increase 
  • Works with stock crankcases (no machine work) 
  • Powder coat finish matches factory finish, 
  • MLS (multi-layered steel) head gaskets 
  • 4.320" Bore 
  • Retains stock engine height 
  • Includes Cubic Inch Cam Cover Badge 
  • Made in USA  

 

Part numbers +

  • 09311082
  • 910-0846

Fitment +

    HARLEY DAVIDSON
  • Softail Deluxe - FLDE: 2018-2020
  • Softail Fat Boy 114 - FLFBS: 2018-2024
  • Softail Fat Boy - FLFB: 2018-2020
  • Softail Heritage Classic 114 - FLHCS: 2018-2024
  • Softail Heritage Classic - FLHC: 2018-2022
  • Electra Glide Highway King - FLHFB: 2023
  • Road King - FLHR: 2017-2022
  • Road King Classic - FLHRC: 2017-2019
  • Road King Special - FLHRXS: 2017-2024
  • Electra Glide Standard - FLHT: 2019-2022
  • Electra Glide Ultra Classic - FLHTCU: 2017-2019
  • Tri Glide Ultra Classic - FLHTCUTG: 2017-2024
  • Tri Glide Ultra Classic CVO/SE - FLHTCUTGSE: 2020-2022
  • Electra Glide Ultra Limited - FLHTK: 2017-2024
  • Electra Glide Ultra Limited Low - FLHTKL: 2017-2019
  • Electra Glide Ultra Limited CVO/SE - FLHTKSE: 2017-2021
  • Electra Glide Revival 114 - FLHT: 2021
  • Street Glide - FLHX: 2017-2023
  • Street Glide Special - FLHXS: 2017-2023
  • Street Glide CVO/SE - FLHXSE: 2017-2024
  • Street Glide ST - FLHXST: 2022-2023
  • Freewheeler - FLRT: 2017-2024
  • Softail Sport Glide - FLSB: 2018-2024
  • Softail Slim - FLSL: 2018-2021
  • Road Glide Limited - FLTRK: 2020-2024
  • Road Glide CVO/SE - FLTRKSE: 2022-2023
  • Road Glide 3 - FLTRT: 2023-2024
  • Road Glide Ultra - FLTRU: 2017-2019
  • Road Glide - FLTRX: 2017-2024
  • Road Glide Special - FLTRXS: 2017-2023
  • Road Glide CVO/SE - FLTRXSE: 2018-2022, 2024
  • Road Glide ST - FLTRXST: 2022-2024
  • Road Glide ST CVO - FLTRXSTSE: 2024
  • Softail Street Bob - FXBB: 2018-2022
  • Softail Street Bob 114 - FXBBS: 2021-2024
  • Softail Breakout - FXBR: 2018-2019
  • Softail Breakout 114 - FXBRS: 2018-2022
  • Softail Breakout 117 - FXBR: 2024
  • FXDR 114 - FXDRS: 2019-2020
  • Softail Fat Bob - FXFB: 2018-2021
  • Softail Fat Bob 114 - FXFBS: 2018-2023
  • Softail Low Rider - FXLR: 2018-2020
  • Softail Low Rider 114 - FXLRS: 2020-2021
  • Softail Low Rider ST - FXLRST: 2022-2024
  • Softail Low Rider 117 - FXLRS: 2024
  • Softail Standard - FXST: 2020-2024

Delivery +

All orders are shipped with either DPD, Fedex, UPS, DHL or Royal Mail. The courier used to ship your order is determined by ourselves once your order has been placed and normally depends on the size, volume and the shipping destination. The selected courier for your order will be quoted in your order confirmation email which you will receive once we have processed your order. Once your order has been shipped, this will be confirmed via email and you will receive a tracking number so you can keep an eye on your shipments progress.

S&S Cycle Big Bore Conversion Cylinder & Piston Kit From 114 Inch To 128 Inch In Black With Highlights For Harley Davidson 2017-2023 Touring M8 & 2018-2023 Softail M8 Models (910-0684)S&S Cycle Big Bore Conversion Cylinder & Piston Kit From 114 Inch To 128 Inch In Black With Highlights For Harley Davidson 2017-2023 Touring M8 & 2018-2023 Softail M8 Models (910-0684)

EU stock

Usually ships in 2-5 business days

All orders are shipped out of our UK premises. Estimated shipping date between 2 Jan and 7 Jan.

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$1,646.74
S&S Cycle 131 Inch Big Bore Cylinder & Piston Kit In Wrinkle Black With Black Fins For Harley Davidson 2018-2023 Softail & 2017-2023 Touring Models (910-0763)S&S Cycle 131 Inch Big Bore Cylinder & Piston Kit In Wrinkle Black With Black Fins For Harley Davidson 2018-2023 Softail & 2017-2023 Touring Models (910-0763)

US stock

Usually ships in 3-4 weeks

All orders are shipped out of our UK premises. Estimated shipping date between 21 Jan and 27 Jan.

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$1,872.83
S&S Cycle 128 CI Power Package In Wrinkle Black With Non-Highlighted Fins For 2017-2023 M8 114 & 117 Oil Cooled Chain Drive Cam Models (310-1105B)S&S Cycle 128 CI Power Package In Wrinkle Black With Non-Highlighted Fins For 2017-2023 M8 114 & 117 Oil Cooled Chain Drive Cam Models (310-1105B)

US stock

Usually ships in 3-4 weeks

All orders are shipped out of our UK premises. Estimated shipping date between 21 Jan and 27 Jan.

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$4,146.67
S&S Cycle 128 CI Power Package In Wrinkle Black With Highlighted Fins For 2017-2023 M8 114 & 117 Oil Cooled Chain Drive Cam Models (310-1103B)S&S Cycle 128 CI Power Package In Wrinkle Black With Highlighted Fins For 2017-2023 M8 114 & 117 Oil Cooled Chain Drive Cam Models (310-1103B)

US stock

Usually ships in 3-4 weeks

All orders are shipped out of our UK premises. Estimated shipping date between 21 Jan and 27 Jan.

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$3,924.34
S&S Cycle 128 CI Power Package In Black Granite With Highlighted Fins For 2017-2023 M8 114 & 117 Oil Cooled Chain Drive Cam Models (310-1109B)S&S Cycle 128 CI Power Package In Black Granite With Highlighted Fins For 2017-2023 M8 114 & 117 Oil Cooled Chain Drive Cam Models (310-1109B)

EU stock

Usually ships in 2-5 business days

All orders are shipped out of our UK premises. Estimated shipping date between 2 Jan and 7 Jan.

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$3,528.16

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