KB Performance Piston Kit
KB Performance
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Product Details
KB Performance Piston Kit. Fits 21 Harley-Davidson models from 1984 to 1999, including the FXDL Dyna Low Rider, FXDWG Dyna Wide Glide and FXR Super Glide II. Manufacturer part number KB258030.
Features
- Manufactured from high-strength, T-5, heat-treated, 390 hypereutectic aluminum alloy
- Allow a tighter fit and longer piston and ring life
- Diamond-machined pistons are held to plus or minus one gram weight and less than one-half-thousandth-inch (.0005") tolerances from piston to piston
- Each kit contains two pistons, pins, spiral-lock pin clips and Hastings moly rings
- Replacement piston rings and pin lock rings available separately
- KB pistons can be installed tighter than other pistons. This results in less piston rock and better ring seal. Please read instructions included with piston for correct piston clearance.
- Due to the thermal conductivity and design of KB pistons, special attention is required to the top ring end gap. Please read instructions furnished with piston for correct ring installation.
Specifications
- UPC
- 800745060402
- Vendor Part Number
- KB258030
- Package Height
- 4.72
- Package Length
- 9.52
- Package Width
- 4.85
- Parts Unlimited #
- 0910-2017
- Bore Oversize - Imperial
- +0.030"
- Bore Size Imperial
- 3.498"
- Brand
- KB Performance
- Compression Ratio
- 8.6:1
- Piston Material
- Hypereutectic Alloy
- Riding Style
- Street
- Unit of Measure
- Kit
Fitment
21 vehicles| Year | Make | Make / Model Model |
|---|---|---|
| 1993 - 1998 | Harley-Davidson |
Harley-Davidson FXDL Dyna Low Rider FXDL Dyna Low Rider |
| 1993 - 1998 | Harley-Davidson |
Harley-Davidson FXDWG Dyna Wide Glide FXDWG Dyna Wide Glide |
| 1984 - 1994 | Harley-Davidson |
Harley-Davidson FXR Super Glide II FXR Super Glide II |
| 1999 | Harley-Davidson |
Harley-Davidson FXR2 FXR2 |
| 1999 | Harley-Davidson |
Harley-Davidson FXR3 FXR3 |
| 1985 - 1987 | Harley-Davidson |
Harley-Davidson FXRC Low Rider Chrome FXRC Low Rider Chrome |
| 1986 | Harley-Davidson |
Harley-Davidson FXRD Sport Glide Grand Touring FXRD Sport Glide Grand Touring |
| 1984 | Harley-Davidson |
Harley-Davidson FXRDG Disc Glide FXRDG Disc Glide |
| 1984 - 1992 | Harley-Davidson |
Harley-Davidson FXRP FXRP |
| 1985 - 1995 | Harley-Davidson |
Harley-Davidson FXRPF Police FXRPF Police |
| 1984 - 1992 | Harley-Davidson |
Harley-Davidson FXRS Low Glide FXRS Low Glide |
| 1990 - 1994 | Harley-Davidson |
Harley-Davidson FXRS-Conv Low Rider Sport Convertible FXRS-Conv Low Rider Sport Convertible |
| 1986 - 1993 | Harley-Davidson |
Harley-Davidson FXRS-SP Low Rider Sport FXRS-SP Low Rider Sport |
| 1984 - 1992 | Harley-Davidson |
Harley-Davidson FXRT Sport Glide FXRT Sport Glide |
| 1984 - 1999 | Harley-Davidson |
Harley-Davidson FXST Softail Standard FXST Softail Standard |
| 1999 | Harley-Davidson |
Harley-Davidson FXSTB Night Train FXSTB Night Train |
| 1986 - 1999 | Harley-Davidson |
Harley-Davidson FXSTC Softail Custom FXSTC Softail Custom |
| 1988 - 1999 | Harley-Davidson |
Harley-Davidson FXSTS Springer Softail FXSTS Springer Softail |
| 1995 - 1997 | Harley-Davidson |
Harley-Davidson FXSTSB Bad Boy FXSTSB Bad Boy |
| 1989 - 1993 | Harley-Davidson |
Harley-Davidson Low Rider FXRS Low Rider FXRS |
| 1993 | Harley-Davidson |
Harley-Davidson Sport Glide FXRT Sport Glide FXRT |
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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