KB Performance Piston Kit - 4.250" Standard - 11.8:1 CR - 124" Big Bore - 107" 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 - 11.8:1 CR - 124" Big Bore - 107" M8. Fits 11 Harley-Davidson models from 2017 to 2024, including the FLFB Fat Boy 107, FLHC Heritage Classic 107 and FLHR Road King. Manufacturer part number KB595LCASTD.
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
- 800745276155
- Vendor Part Number
- KB595LCASTD
- Package Height
- 5.75
- Package Length
- 6
- Package Width
- 6
- Parts Unlimited #
- 0910-6403
- Bore - Oversize
- Standard
- Bore Oversize (in)
- Standard
- Bore Size (in)
- 4.250"
- Brand
- KB Performance
- Compression Ratio
- 11.8:1
- Displacement
- 124"
- Model
- Super Duty
- Piston Head Shape
- Domed
- Piston Material
- 4032 Aluminum Alloy
- Riding Style
- Street
- Stroke Length (in)
- 4.375"
- Style
- Forged
- Type
- Big Bore
- Unit of Measure
- Kit
Fitment
11 vehicles| Year | Make | Make / Model Model |
|---|---|---|
| 2018 - 2020 | Harley-Davidson |
Harley-Davidson FLFB Fat Boy 107 FLFB Fat Boy 107 |
| 2018 - 2021 | Harley-Davidson |
Harley-Davidson FLHC Heritage Classic 107 FLHC Heritage Classic 107 |
| 2017 - 2022 | Harley-Davidson |
Harley-Davidson FLHR Road King FLHR Road King |
| 2019 - 2022 | Harley-Davidson |
Harley-Davidson FLHT Electra Glide Standard FLHT Electra Glide Standard |
| 2017 - 2024 | Harley-Davidson |
Harley-Davidson FLHTCUTG Tri Glide Ultra FLHTCUTG Tri Glide Ultra |
| 2017 - 2024 | Harley-Davidson |
Harley-Davidson FLHX Street Glide FLHX Street Glide |
| 2018 - 2024 | Harley-Davidson |
Harley-Davidson FLSB Sport Glide 107 FLSB Sport Glide 107 |
| 2018 - 2021 | Harley-Davidson |
Harley-Davidson FLSL Softail Slim 107 FLSL Softail Slim 107 |
| 2018 - 2020 | Harley-Davidson |
Harley-Davidson FXBB Street Bob 107 FXBB Street Bob 107 |
| 2018 - 2019 | Harley-Davidson |
Harley-Davidson FXBR Breakout 107 FXBR Breakout 107 |
| 2018 - 2020 | Harley-Davidson |
Harley-Davidson FXLR Low Rider 107 FXLR Low Rider 107 |
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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