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We offer shipping to most countries. Simply select your country once you have added items to your basket and you'll be shown an instant price for shipping without having to advance in to the check out process.

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200,000+ Parts & Accessories
Our catalogue has grown extensively over the years and we now source a huge range of parts and accessories from a number of distributors from round the world.

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Order Online Or By Phone 
We're more than happy to have customers order which ever way they prefer. If you'd like to discuss anything over the phone prior to ordering we'd be delighted to help you.

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Simple Exchange Or Refund Policy 
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 Big Bore Cylinder Kit From 117 to 128 In Black Granite With Highlighting 4.250 Bore x 4.5 Stroke For Harley Davidson 2018-2023 Touring M8 Models (910-0733)

  • S&S Cycle Big Bore Cylinder Kit From 117 to 128 In Black Granite With Highlighting 4.250 Bore x 4.5 Stroke For Harley Davidson 2018-2023 Touring M8 Models (910-0733)
£1,445.04 inc.VAT
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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 23 Dec and 30 Dec.

Usually ships in 2-5 business days

All orders are shipped out of our UK premises. Estimated shipping date between 23 Dec and 30 Dec.

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About Shipping Costs

Shipping Cost

To view the total cost including shipping please advance to the basket and select your shipping country.

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Big Bore Cylinder Kit

  • The Big Bore kit yields excellent results with stock cylinder heads
  • Easy installation: no need to bore or split existing cases, just swap the cylinders
  • Cylinders are constructed from premium aluminium castings with cast-in iron liners
  • Kits include cylinders, pistons, rings and gaskets (head, base and exhaust)
  • Black or silver powder-coat finish
  • Made in the U.S.A.
  • This project requires a skilled technician. It is the responsibility of the person assembling the parts to check all clearances and assembly specifications.

Specifications +

Units: Kit
Style: Big Bore
Base Colour: Black
Bore Size: 4,250"
Compression Ratio: 11:1
Compression Ratio Imperial: 11.0:1
Colour/Finish: Black Granite| Highlighted Fins
Displacement: 128"
Stroke Length: 4-1/2"
Product Name: Cylinder Kit

Part numbers +

  • 09310876
  • 0931-0876
  • 910-0733

Fitment +

    HARLEY DAVIDSON
  • Tri Glide Ultra Classic CVO/SE - FLHTCUTGSE: 2020-2022
  • Electra Glide Ultra Limited CVO/SE - FLHTKSE: 2018-2021
  • Street Glide CVO/SE - FLHXSE: 2018-2023
  • Street Glide ST - FLHXST: 2022-2023
  • Road Glide CVO/SE - FLTRKSE: 2022-2023
  • Road Glide CVO/SE - FLTRXSE: 2018-2022
  • Road Glide ST - FLTRXST: 2022-2024
  • Road Glide ST CVO - FLTRXSTSE: 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 23 Dec and 30 Dec.

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£1,308.85 inc.VAT
S&S Cycle Big Bore Cylinder Set With 4.250 Bore Without Highlighted Fins In Wrinkle Black For Harley Davidson 2017-2023 Touring M8 & 2018-2023 Softail M8 Models (910-0683)S&S Cycle Big Bore Cylinder Set With 4.250 Bore Without Highlighted Fins In Wrinkle Black For Harley Davidson 2017-2023 Touring M8 & 2018-2023 Softail M8 Models (910-0683)

EU stock

Usually ships in 2-5 business days

All orders are shipped out of our UK premises. Estimated shipping date between 23 Dec and 30 Dec.

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£778.24 inc.VAT
S&S Cycle Big Bore Cylinder Set With 4.250 Bore With Highlighted Fins In Wrinkle Black For Harley Davidson 2017-2023 Touring M8 & 2018-2023 Softail M8 Models (910-0682)S&S Cycle Big Bore Cylinder Set With 4.250 Bore With Highlighted Fins In Wrinkle Black For Harley Davidson 2017-2023 Touring M8 & 2018-2023 Softail M8 Models (910-0682)

EU stock

Usually ships in 2-5 business days

All orders are shipped out of our UK premises. Estimated shipping date between 23 Dec and 30 Dec.

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£778.24 inc.VAT
S&S Cycle Big Bore Cylinder Set 4.250 Bore In Black Granite With Highlights For Harley Davidson 2017-2023 Touring M8 & 2018-2023 Softail M8 Models (910-0739)S&S Cycle Big Bore Cylinder Set 4.250 Bore In Black Granite With Highlights For Harley Davidson 2017-2023 Touring M8 & 2018-2023 Softail M8 Models (910-0739)

EU stock

Usually ships in 2-5 business days

All orders are shipped out of our UK premises. Estimated shipping date between 23 Dec and 30 Dec.

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Now £606.55 inc.VAT
Was £638.47 Save £31.92

S&S Cycle 131 Inch Big Bore Cylinder & Piston Kit In Wrinkle Black With Highlighted Fins For Harley Davidson 2018-2023 Softail & 2017-2023 Touring Models (910-0762)S&S Cycle 131 Inch Big Bore Cylinder & Piston Kit In Wrinkle Black With Highlighted Fins For Harley Davidson 2018-2023 Softail & 2017-2023 Touring Models (910-0762)

US stock

Usually ships in 3-4 weeks

All orders are shipped out of our UK premises. Estimated shipping date between 14 Jan and 20 Jan.

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£1,664.74 inc.VAT

Back In Stock Notification

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Shipping Cost

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