Features
- Feature ArmorX™ piston coating for superior protection in extreme conditions and reduced wear
- ArmorFit™ skirt coating auto-adjusts to the cylinder wall so there’s no need to measure clearance; provides smooth, quiet, trouble-free operation
- Dome design for improved flame travel to maximize air/ fuel burn efficiency
- High compression (11:1) for added power
- Superfinish piston pin reduces friction and improves scuff resistance
- Enhanced pin oiling for improved lubrication and reduced friction
- Augmented ring land details improve ring seal and function
- Dedicated rings for precise fit, improved compression and oil control
- Fit OEM and Screamin’ Eagle cylinder heads
- Kit includes two pistons, rings, piston pins and circlips
- Made in the U.S.A
Specs
| Stroke Length | 4-3/8" |
| Bore Size | 4.125" |
| Piston Head Shape | Flat Top |
| Piston Material | ArmorX™ |
| Product Name | Piston Kit |
| Riding Style | Street |
| Skirt Coating | ArmorFit™ |
| Bore - Oversize | +0,190" |
| Compression Ratio | 11.0:1 |
| Units | Kit |
| Bore Oversize | +0.190" |
| Displacement | 1918 cc |
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| 2017-2019 | Harley-Davidson | Road Glide Ultra FLTRU |
| 2017-2022 | Harley-Davidson | Road King FLHR |
| 2017-2023 | Harley-Davidson | Street Glide FLHX/FLHXS |
| 2017-2023 | Harley-Davidson | Tri Glide Ultra Classic FLHTCUTG |
| 2018-2019 | Harley-Davidson | Softail Breakout FXBR |
| 2018-2020 | Harley-Davidson | Softail Deluxe FLDE |
| 2018-2019 | Harley-Davidson | Softail Fat Bob FXFB |
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| 2018-2021 | Harley-Davidson | Softail Heritage Classic FLHC |
| 2018-2020 | Harley-Davidson | Softail Low Rider FXLR |
| 2018-2021 | Harley-Davidson | Softail Slim FLSL |
| 2018-2021 | Harley-Davidson | Softail Sport Glide FLSB |
| 2020-2023 | Harley-Davidson | Softail Standard FXST |
Fitment Disclosure
This quick reference fitment information is provided to direct you to our catalog information and the manufacturer's information. Consult manufacturer publication(s) and/or website(s) for specific fitment and application information and other important information. This fitment information is based upon the stock version of the motorcycle or unit referenced and any accessory added or other modification could invalidate the quick reference information provided.Payment & Security
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