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310-1289 Engine - MK 136 - 550G - Oil C

£10923.41 SAVE £1638.51 (15%)
£9284.90

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Stock updated: 17 Jul 2026
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Estimated delivery: 3–15 working days

Part #: 310-1289 | Pack: EA

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Specifications

Brand
S&S
Part Number
310-1289
OEM Reference
Pack Quantity
Sold as ea
Category
Engines-Complete-Assembled
VAT Rate
20%

About This Product

The S&S MK136 is a massive 136-cubic-inch engine designed specifically for oil-cooled Milwaukee-Eight touring models. This race-only version comes equipped with a high-lift 550G gear-drive cam, optimized for maximum power delivery in competitive environments. The engine features a black finish and is engineered with S&S’s latest performance technology to provide unmatched displacement and reliability. It is a complete long block solution for those looking to push the limits of the M8 platform. S&S Cycle continues to lead the market in M8 performance, and the MK136 represents their most ambitious engine to date. Sold individually, this engine is intended for closed-course competition and high-performance custom applications.

Manufacturer part number: 310-1289.

Fitment

24 models
Cvo/Custom
1 model
Brand Year Model
Harley-Davidson 2022 Street Glide CVO 117 FLHXSE
Touring
19 models
Brand Year Model
Harley-Davidson 2019–2022 Electra Glide Standard 107 FLHT
Harley-Davidson 2019 Electra Glide Ultra Classic 107 FLHTCU
Harley-Davidson 2017–2023 Road Glide 107 FLTRX
Harley-Davidson 2017–2018 Road Glide Special 107 FLTRXS
Harley-Davidson 2019–2023 Road Glide Special 114 FLTRXS
Harley-Davidson 2023 Road Glide Special Anniversary 114 FLTRXS
Harley-Davidson 2022–2023 Road Glide ST 117 FLTRXST
Harley-Davidson 2017–2022 Road King 107 FLHR
Harley-Davidson 2017–2019 Road King Classic 107 FLHRC
Harley-Davidson 2017–2018 Road King Special 107 FLHRXS
Harley-Davidson 2019–2023 Road King Special 114 FLHRXS
Harley-Davidson 2017–2023 Street Glide 107 FLHX
Harley-Davidson 2018 Street Glide Anniversary 107 FLHX
Harley-Davidson 2017–2018 Street Glide Special 107 FLHXS
Harley-Davidson 2019–2023 Street Glide Special 114 FLHXS
Harley-Davidson 2021 Street Glide Special 114 Arctic Blast Limited FLHXS
Harley-Davidson 2018 Street Glide Special Anniversary 107 FLHXS
Harley-Davidson 2023 Street Glide Special Anniversary 114 FLHXS
Harley-Davidson 2022–2023 Street Glide ST 117 FLHXST
Trike
3 models
Brand Year Model
Harley-Davidson 2017–2019 Freewheeler 107 FLRT
Harley-Davidson 2020–2023 Freewheeler 114 FLRT
Harley-Davidson 2023 Road Glide 3 114 FLTRT
74ci (1200cc) Ohv Twin
1 model
Brand Year Model
Harley-Davidson 2021 Electra Glide Revival 114 FLH

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Who are we? Leeds Harley-Davidson - Iron City Motorcycles

Who are we? Leeds Harley-Davidson - Iron City Motorcycles

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