Description
Kb Performance - KB542LCA.020 - Piston Kit - 4.125" +0.020" - 11.0:1 CR - 114"/117" Bored to 120" - M8
Features
- New skirt coating technology is applied to the entire thickness of the piston-to-wall clearance for a zero install clearance; coating then abrades in on start-up to hone for the perfect fit per cylinder
- Hard anodized top ring groove eliminates micro welding of the ring to the groove; this maintains a flat and smooth surface for the best ring seal and top ring groove
- Teflon based skirt coating eliminates piston rock for the best possible ring seal with no piston slap noise
- Hard anodized crown to aid in heat deflection and to reduce corrosion from alcohol fuels
- Flat Top 1.2 cc design with oversized valve pockets to accept 1.00 mm larger valves
- Includes pistons, rings, pins and clips
- Made in the USA
Specs
| Piston Material | 4032 Aluminum Alloy |
| Compression Ratio Imperial | 11.0:1 |
| Style | Forged |
| Units | Kit |
| Stroke Length Imperial | 4.500'' |
| Bore - Oversize | +0,020'' |
| Displacement | 120'' |
| Piston Head Shape | Flat Top |
| Bore Oversize - Imperial | +0.020'' |
| Product Name | Piston Kit |
| Riding Style | Street |
| Bore Size Imperial | 4.125'' |
| Model | Super Duty |
Fitment
| 2017-2021 | Harley-Davidson | CVO Electra Glide Ultra Limited FLHTKSE |
| 2018-2021 | Harley-Davidson | CVO Road Glide Custom FLTRXSE |
| 2017-2021 | Harley-Davidson | CVO Street Glide FLHXSE |
| 2020-2021 | Harley-Davidson | CVO Tri Glide FLHTCUTGSE |
| 2017-2021 | Harley-Davidson | Electra Glide Police FLHTPI |
| 2021 | Harley-Davidson | Electra Glide Revival |
| 2019-2021 | Harley-Davidson | Electra Glide Standard EFI FLHTI |
| 2017-2019 | Harley-Davidson | Electra Glide Ultra Classic EFI FLHTCUI |
| 2017-2021 | Harley-Davidson | Electra Glide Ultra Limited FLHTK |
| 2017-2019 | Harley-Davidson | Electra Glide Ultra Limited Low FLHTKL |
| 2017-2021 | Harley-Davidson | Freewheeler FLRT |
| 2019-2020 | Harley-Davidson | FXDR 114 |
| 2017-2021 | Harley-Davidson | Road Glide Custom FLTRX |
| 2020-2021 | Harley-Davidson | Road Glide Limited FLTRK |
| 2017-2021 | Harley-Davidson | Road Glide Special FLTRXS |
| 2017-2019 | Harley-Davidson | Road Glide Ultra FLTRU |
| 2017-2021 | Harley-Davidson | Road King EFI FLHR |
| 2017-2021 | Harley-Davidson | Road King Police FLHP |
| 2017-2021 | Harley-Davidson | Road King Special FLHRXS |
| 2018-2020 | Harley-Davidson | Softail Breakout 114 FXBRS |
| 2018-2019 | Harley-Davidson | Softail Breakout FXBR |
| 2018-2020 | Harley-Davidson | Softail Deluxe FLDE |
| 2018-2021 | Harley-Davidson | Softail Fat Bob 114 FXFBS |
| 2018-2019 | Harley-Davidson | Softail Fat Bob FXFB |
| 2018-2021 | Harley-Davidson | Softail Fat Boy 114 FLFBS |
| 2018-2019 | Harley-Davidson | Softail Fat Boy FLFB |
| 2018-2021 | Harley-Davidson | Softail Heritage Classic 114 FLHCS |
| 2018-2021 | Harley-Davidson | Softail Heritage Classic FLHC |
| 2018-2020 | Harley-Davidson | Softail Low Rider FXLR |
| 2020-2021 | Harley-Davidson | Softail Low Rider S FXLRS |
| 2018-2021 | Harley-Davidson | Softail Slim FLSL |
| 2018-2021 | Harley-Davidson | Softail Sport Glide FLSB |
| 2020-2021 | Harley-Davidson | Softail Standard FXST |
| 2018-2021 | Harley-Davidson | Softail Street Bob FXBB |
| 2017-2021 | Harley-Davidson | Street Glide EFI FLHX |
| 2017-2021 | Harley-Davidson | Street Glide Special FLHXS |
| 2017-2021 | Harley-Davidson | Tri Glide Ultra Classic FLHTCUTG |
