S&S Cycle 17-23 Oil-Cooled M8 Touring MK136 Black Edition Engine
Why this price?
$11,999.95 is MSRP, the lowest price S&S Cycle lets us list it at. Additionally, Pro members get 3% to 35% back on most parts.
Special Order
This part is still available to order. Once you place your order, we’ll submit it directly to S&S Cycle, and they’ll ship it straight to you.
Delivery times can vary depending on the brand, so we can’t guarantee an exact arrival date. What we can guarantee is that we’ll stay on top of your order, monitor its progress, and keep you updated until it reaches your door.
Special-order items are typically not kept in stock by most retailers. By ordering through us, your order is placed directly with S&S Cycle, assuring you get the part as quickly as possible.
Want to get an estimated delivery timeframe before ordering? Contact us through our contact page, and we’ll be happy to find out for you.
Not sure it fits? Read our tips.
Fitment tips
Fitment can come down to more than year, make and model. Sometimes the sub-model decides, so start with the fitment table below.
- Drive type. If your car is all-wheel drive, make sure the part is for all-wheel drive, not rear-wheel drive.
- Engine size. For engine parts, make sure the engine size on the product matches your engine.
- Transmission. Manual and automatic cars often take different parts.
- Body style. Sedan or hatch, two-door or four-door, cab and bed length on trucks.
Manufacturer data can sometimes have imperfections. Still not sure? We are happy to help.
Send us a message and we will confirm the fit.
Couldn't load pickup availability
Introducing the next generation of Proven Performance for your 2017 & newer H-D Touring Models, the MK136 Engine.This is the newest version of the complete crate engines S&S is known for, ready to install in your M8 Touring bike. S&S took our MK-Series Crankcases, married them to the 136" cylinders and flywheels, and then fit High-flow cylinder heads with +1mm Valves and .605" springs. This huge displacement engine is sure to not only create huge power, but also put a huge smile on your face when you lay into the throttle. It is the purchaser's responsibility to consider the suitability for their application. Engine noise and damage from abuse is not covered under warranty.
- 1mm oversized intake and exhaust valves are .030" longer than stock for improved valve-train geometry, .605" max lift valve springs, high-strength alloy used in cylinder head casting, Enlarged cooling passage around the exhaust seats
- Forged pistons, S&S performance oil pump and cam support plate, Premium tappets and tappet cuffs, Billet aluminum covers, Champion spark plugs, Includes Cam Cover Badge
- Patented Dual-Spray Piston Cooling Jets, Precision machined oil scraper, Enlarged oil sump, Contoured floor allows oil to easily drain back to the sump
- High-flow cylinder heads with premium seats, guides, valves, springs, and seals
This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2021 | Harley-Davidson | FLH Electra Glide Revival | Base |
| 2023 | Harley-Davidson | FLHFB Electra Glide Highway King | Base |
| 2017-2022 | Harley-Davidson | FLHR Road King | Base |
| 2017,2019 | Harley-Davidson | FLHRC Road King Classic | Base |
| 2017-2023 | Harley-Davidson | FLHRXS Road King Special | Base |
| 2019-2022 | Harley-Davidson | FLHT Electra Glide Standard | Base |
| 2017-2019 | Harley-Davidson | FLHTCU Electra Glide Ultra Classic | Base |
| 2017-2023 | Harley-Davidson | FLHX Street Glide | Base |
| 2017-2023 | Harley-Davidson | FLHXS Street Glide Special | Base |
| 2022-2023 | Harley-Davidson | FLHXST Street Glide ST | Base |
| 2017-2019,2022-2023 | Harley-Davidson | FLRT Freewheeler | Base |
| 2017-2019 | Harley-Davidson | FLTRU Road Glide Ultra | Base |
| 2017-2023 | Harley-Davidson | FLTRX Road Glide | Base |
| 2017-2023 | Harley-Davidson | FLTRXS Road Glide Special | Base |
| 2019 | Harley-Davidson | FLTRXSE CVO Road Glide | Base |
| 2022-2023 | Harley-Davidson | FLTRXST Road Glide ST | Base |
Ships by Freight Truck
This item is too large or too heavy to ship as a normal package, so it travels on a freight truck instead of with UPS or FedEx.
The carrier will call you before delivery to arrange a time window, so please make sure the phone number on your order is one you answer. Someone needs to be there to receive it and sign for it.
Freight deliveries are curbside. The driver brings it to the end of your driveway, not into a garage or up a flight of stairs, so it is worth having a second person on hand for anything heavy.
Please allow extra time compared with a normal package. If you need an estimated delivery window before ordering, contact us through our contact page and we will find out for you.
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