KB Performance Piston Kit - 4.250" Standard - 11.7:1 CR - 128" Big Bore - 114"/117" M8
KB Performance
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Fits with this item-
Drag Specialties Cylinder Set - 4.250" Bore - Black with Highlighted Fins - 124"/128" M8Special Price $461.05 Regular Price $468.95/ pair
Discontinued
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Product Details
KB Performance Piston Kit - 4.250" Standard - 11.7:1 CR - 128" Big Bore - 114"/117" M8. Fits 13 Harley-Davidson models from 2017 to 2024, including the FLFBS Fat Boy 114, FLHCS Heritage Classic 114 and FLHRXS Road King Special. Manufacturer part number KB596LCASTD.
Features
- Pistons forged from 4032 aluminum alloy
- Offset pin design for quiet operation
- Each kit contains two pistons, pins, spiral-lock pin clips and Hastings moly rings
- Piston pin lock rings available separately
- Replacement rings are also available separately
Specifications
- UPC
- 800745276186
- Vendor Part Number
- KB596LCASTD
- Package Height
- 5.47
- Package Length
- 6.25
- Package Width
- 5.5
- Parts Unlimited #
- 0910-6405
- Bore - Oversize
- Standard
- Bore Oversize (in)
- Standard
- Bore Size (in)
- 4.250"
- Brand
- KB Performance
- Compression Ratio
- 11.7:1
- Displacement
- 128"
- Model
- Super Duty
- Piston Head Shape
- Domed
- Piston Material
- 4032 Aluminum Alloy
- Riding Style
- Street
- Stroke Length (in)
- 4.500"
- Style
- Forged
- Type
- Big Bore
- Unit of Measure
- Kit
Fitment
13 vehicles| Year | Make | Make / Model Model |
|---|---|---|
| 2018 - 2024 | Harley-Davidson |
Harley-Davidson FLFBS Fat Boy 114 FLFBS Fat Boy 114 |
| 2018 - 2024 | Harley-Davidson |
Harley-Davidson FLHCS Heritage Classic 114 FLHCS Heritage Classic 114 |
| 2017 - 2024 | Harley-Davidson |
Harley-Davidson FLHRXS Road King Special FLHRXS Road King Special |
| 2017 - 2019 | Harley-Davidson |
Harley-Davidson FLHTCU Electra Glide Ultra Classic FLHTCU Electra Glide Ultra Classic |
| 2017 - 2021 | Harley-Davidson |
Harley-Davidson FLHTKSE CVO Limited FLHTKSE CVO Limited |
| 2017 - 2023 | Harley-Davidson |
Harley-Davidson FLHXS Street Glide Special FLHXS Street Glide Special |
| 2017 - 2024 | Harley-Davidson |
Harley-Davidson FLHXSE CVO Street Glide FLHXSE CVO Street Glide |
| 2017 - 2024 | Harley-Davidson |
Harley-Davidson FLTRX Road Glide FLTRX Road Glide |
| 2017 - 2023 | Harley-Davidson |
Harley-Davidson FLTRXS Road Glide Special FLTRXS Road Glide Special |
| 2018 - 2024 | Harley-Davidson |
Harley-Davidson FLTRXSE CVO Road Glide FLTRXSE CVO Road Glide |
| 2018 - 2020 | Harley-Davidson |
Harley-Davidson FXBRS Breakout 114 FXBRS Breakout 114 |
| 2019 - 2020 | Harley-Davidson |
Harley-Davidson FXDRS FXDR 114 FXDRS FXDR 114 |
| 2018 - 2023 | Harley-Davidson |
Harley-Davidson FXFBS Fat Bob 114 FXFBS Fat Bob 114 |
Fitment Disclosure
For reference only, please consult your owner’s manual to confirm your fitment.
General Safety Warning
Failure to follow the manufacturer's recommendations and requirements can cause product failure resulting in serious injury or death. While effort has been taken to collect accurate fitment information, 43 Moto accepts no liability for loss or damage resulting from errors or omissions. If you believe any of the information provided is erroneous, please email [email protected].
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