- EST (Extreme Sealing Technology) gasket kits include embossed stainless steel head, base, and rocker gaskets covered with a proprietary rubber material
- Head gasket material allows heat to be drawn away from the combustion ring and dissipated evenly across the gasket surface to eliminate hot spots and gasket failure
- Sets contain all the necessary gaskets, seals, and O-rings to rebuild the top end from the cylinder base upward
- Made in the U.S.A.
| Compatible Vehicles | |||
| Years | Make | Make | Notes |
| 2010-2022 | Harley-Davidson | Forty Eight XL1200X | |
| 2018-2019 | Harley-Davidson | Forty Eight XL1200XS Special | |
| 2018-2021 | Harley-Davidson | Iron 1200 XL1200NS | |
| 2016-2020 | Harley-Davidson | Roadster XL1200CX | |
| 2012-2016 | Harley-Davidson | Seventy Two XL1200V | |
| 2007-2019 | Harley-Davidson | Sportster 1200 Custom XL1200C | |
| 2007-2011 | Harley-Davidson | Sportster 1200 Low XL1200L | |
| 2007-2012 | Harley-Davidson | Sportster 1200 Nightster XL1200N | |
| 2007-2008 | Harley-Davidson | Sportster 1200 Roadster XL1200R | |
| 2014-2017 | Harley-Davidson | Sportster 1200 Super Low XL1200T | |