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Product Details

S&S Cycle MK-Series Engine Crankcase Assembly For Harley M8 Touring

The M8 mill is a great starting point for a high-performance build. The factory did a heck of a job, but eventually you will reach the operating limits of a stock bottom end. S&S saw where the market was going and developed the MK-Series Crankcase assembly. These high quality cases are designed specifically to accommodate larger bores, scrape more oil, and offer more reliability, all while fitting in a stock touring frame. 

If you are looking to push the boundaries of performance, start off with a set of high strength cases that you know are up for the task!

Features:

  • Stock deck height
  • Large volume sump
  • Fits stock touring frame
  • Designed to accept larger bores
  • Accepts all OEM style components
  • Reinforced case prevents cracking in high stress areas for increased reliability
  • Machined oil scraper allows better oil scavenging which result in lower oil temperatures in the flywheel cavity
  • Made in the USA
Made in the USA
Product Style J&P Cycles Item # Catalog Number Store Sku MFR. Product # Availability
Product Style Black J&P Cycles Item #10384325 Catalog Number10384325 Store Sku MFR. Product #310-1170 AvailabilityOut of Stock
This product is vehicle specific.
Select a vehicle to ensure fitment.
Fitment Notes & Exceptions
  • CARB EO# D-355-49
This Product Fits
Harley Davidson
Electra Glide Highway King FLHFB 2023
Electra Glide Standard FLHT 2019, 2020, 2021, 2022
Electra Glide Ultra Classic FLHTCU/I 2017, 2018, 2019
Electra Glide Ultra Limited CVO/SE FLHTKSE 2017, 2018, 2019, 2020, 2021
Electra Glide Ultra Limited FLHTK 2017-2024
Electra Glide Ultra Limited Low FLHTKL 2017, 2018, 2019
Revival FLH 2021
Road Glide CVO/SE FLTRXSE 2018, 2019, 2020, 2021, 2022
Road Glide FLTRX 2017-2023
Road Glide Limited CVO FLTRKSE 2022, 2023
Road Glide Limited FLTRK 2020, 2021, 2022, 2023, 2024
Road Glide Special FLTRXS 2017-2023
Road Glide ST FLTRXST 2022, 2023
Road Glide Ultra FLTRU 2017, 2018, 2019
Road King FLHR/I 2017-2022
Road King Special FLHRXS 2017-2025
Street Glide CVO/SE FLHXSE 2017-2022
Street Glide FLHX/I 2017-2023
Street Glide Special FLHXS 2017-2023
Street Glide ST FLHXST 2022, 2023
This item is also available for 20 different vehicles. View All Models

S&S Cycle MK-Series Engine Crankcase Assembly For Harley Touring 2017-2025 Instructions

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