JE PISTONS Piston Kit - 4.320" - 11.25:1 CR - 114"/117" M8 391730
JE PISTONS Piston Kit - 4.320" - 11.25:1 CR - 114"/117" M8 391730 is backordered and will ship as soon as it is back in stock.
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JE PISTONS Piston Kit - 4.320" - 11.25:1 CR - 114"/117" M8 391730
Description
Description
Piston Kit - 4.320" - 11.25:1 CR - 114"/117" M8
Propriety aligned grain flow forging technology for maximum tensile strength suited for high performance enviroment, Cermic crown coating protects the piston by reducing heat transfer, Internal and external bracing maintains optimized strength-to-weight ratio for longevity, 3D undercrown milling in non-critical areas reduces overall weight, Lateral gas ports and accumulator groove maintain power-producing ring seal even at high RPM and high boost, Tuff Skirt is a propriety, moly based dry film skirt coating that is applied in-house and reduces operating friction for better wear resistance, Offset pin reduces piston rock and minimize engine operating noise, Skirt notches for optimal clearance at the bottom dead center, Kit includes two pistons, premium ring pack, wrist pins and wire locks
Specifications
- Brand: JE Pistons
- Product: forged side relief design piston kit
- Riding style: Street
- Model: Ultra Series
- Piston Material: Forged 2618 Aluminum
- Bore Size: 4.320"
- Skirt Coating: Tuff Skirt
- Bore - Oversize: +0,070"
- Compression Ratio: 11.25:1
- Piston Head Shape: Dished
- Stroke Length: 4.500"
- Part number: 391730
- Supplier SKU: 0910-6861
- Units: kit
Harley-Davidson Fitment
| Make | Years | Model | Details |
|---|---|---|---|
| Harley-Davidson | 2024 | FLHX Street Glide | |
| Harley-Davidson | 2024 | FLTRX Road Glide | |
| Harley-Davidson | 2023–2024 | FXBR Breakout 117 | |
| Harley-Davidson | 2022–2024 | FXLRS Low Rider S 117 | Softail |
| Harley-Davidson | 2022–2024 | FXLRST Low Rider ST 117 | Softail |
| Harley-Davidson | 2022–2023 | FLHXST Street Glide ST | |
| Harley-Davidson | 2022–2023 | FLTRKSE CVO Road Glide Limited | CVO |
| Harley-Davidson | 2022–2023 | FLTRXST Road Glide ST | |
| Harley-Davidson | 2020–2022 | FLHTCUTGSE CVO Tri Glide | CVO |
| Harley-Davidson | 2018–2022 | FLHXSE CVO Street Glide | CVO |
| Harley-Davidson | 2018–2022 | FLTRXSE CVO Road Glide | CVO |
| Harley-Davidson | 2022 | FXRST Low Rider El Diablo 117 | Softail |
| Harley-Davidson | 2018–2021 | FLHTKSE CVO Limited | CVO |
Please confirm fitment for your specific model year.
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