KB Hypereutectic Piston Kit +.020" Bore (KB258.020)
$243.95
$203.16
(You save
$40.79
)
UPC:
800745060389
- 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.
- 3.498 in. Bore Size.
- 8.6:1 Compression Ratio.
| Compatible Vehicles | |||
| Years | Make | Make | Notes |
| 1995-1997 | Harley-Davidson | Bad Boy FXSTSB | |
| 1984 | Harley-Davidson | Disc Glide FXRDG | |
| 1994-1998 | Harley-Davidson | Dyna Convertible FXDS-Conv | |
| 1992 | Harley-Davidson | Dyna Daytona FXDB-D | |
| 1992 | Harley-Davidson | Dyna Glide Custom FXDC | |
| 1993 | Harley-Davidson | Dyna Low Rider Convertible FXRS-Conv | |
| 1993-1994 | Harley-Davidson | Dyna Low Rider Custom FXLR | |
| 1993-1998 | Harley-Davidson | Dyna Low Rider FXDL | |
| 1993 | Harley-Davidson | Dyna Low Rider Sport FXRS-SP | |
| 1991 | Harley-Davidson | Dyna Sturgis FXDB | |
| 1995-1998 | Harley-Davidson | Dyna Super Glide FXD | |
| 1993-1998 | Harley-Davidson | Dyna Wide Glide FXDWG | |
| 1996-1998 | Harley-Davidson | Electra Glide Classic EFI FLHTCI | |
| 1984-1998 | Harley-Davidson | Electra Glide Classic FLHTC | |
| 1985 | Harley-Davidson | Electra Glide FLH | |
| 1986-1987 | Harley-Davidson | Electra Glide FLHT | |
| 1995-1998 | Harley-Davidson | Electra Glide FLHT | |
| 1985 | Harley-Davidson | Electra Glide FLHX | |
| 1987-1993 | Harley-Davidson | Electra Glide Sport FLHS | |
| 1995-1998 | Harley-Davidson | Electra Glide Ultra Classic EFI FLHTCUI | |
| 1989-1997 | Harley-Davidson | Electra Glide Ultra Classic FLHTCU | |
| 1990-1999 | Harley-Davidson | Fat Boy FLSTF | |
| 1988-1999 | Harley-Davidson | Heritage Softail Classic FLSTC | |
| 1986-1990 | Harley-Davidson | Heritage Softail FLST | |
| 1993 | Harley-Davidson | Heritage Softail Nostalgia FLSTN | |
| 1994-1996 | Harley-Davidson | Heritage Softail Special FLSTN | |
| 1997-1999 | Harley-Davidson | Heritage Springer FLSTS | |
| 1984-1985 | Harley-Davidson | Low Glide FXRS | |
| 1987 | Harley-Davidson | Low Rider Chrome FXRC | |
| 1990-1992 | Harley-Davidson | Low Rider Convertible FXRS-Conv | |
| 1987-1992 | Harley-Davidson | Low Rider Custom FXLR | |
| 1986-1992 | Harley-Davidson | Low Rider FXRS | |
| 1985 | Harley-Davidson | Low Rider FXSB | |
| 1986-1992 | Harley-Davidson | Low Rider Sport FXRS-SP | |
| 1999 | Harley-Davidson | Night Train FXSTB | |
| 1998 | Harley-Davidson | Road Glide EFI FLTRI | |
| 1998 | Harley-Davidson | Road Glide FLTR | |
| 1998 | Harley-Davidson | Road King Classic EFI FLHRCI | |
| 1996-1997 | Harley-Davidson | Road King EFI FLHRI | |
| 1994-1998 | Harley-Davidson | Road King FLHR | |
| 1986-1999 | Harley-Davidson | Softail Custom FXSTC | |
| 1984-1990 | Harley-Davidson | Softail FXST | |
| 1988-1999 | Harley-Davidson | Softail Springer FXSTS | |
| 1999 | Harley-Davidson | Softail Standard FXST | |
| 1984-1992 | Harley-Davidson | Sport Glide FXRT | |
| 1986 | Harley-Davidson | Sport Glide Grand Touring FXRT | |
| 1985 | Harley-Davidson | Super Glide FatBob FXEF | |
| 1986-1994 | Harley-Davidson | Super Glide FXR | |
| 1984-1991 | Harley-Davidson | Tour Glide Classic FLTC | |
| 1996 | Harley-Davidson | Tour Glide Ultra Classic EFI FLTCUI | |
| 1989-1995 | Harley-Davidson | Tour Glide Ultra Classic FLTCU | |
| 1985-1986 | Harley-Davidson | Wide Glide FXWG | |