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The Wiseco team has led the powersports performance industry through eras and technological advancements, including the rise of high-performance 4-stroke engines. Today, Wiseco's forged 4-stroke pistons are engineered for specific engine applications and manufactured to the tightest tolerances, offering unparalleled performance and strength. Wiseco 4-stroke pistons are proven across all levels of riding and are available for a wide range of models.
- Improved tensile strength of forged material optimizes strength and service life
- Optimized compression ratio to fit your build and performance goals
- Designed and built for each specific 4-stroke powersports engine
- Designed and built specifically for each V-Twin engine platform
- Dedicated forgings allow for optimized strength-to-weight ratio
- Includes high-quality piston rings, wrist pin(s), and circlips
- Engineered, forged, and machined in the USA in Mentor, OH
- Wrist pin, rings and circlips included
- 3.508 in. Bore, 8.5:1 CR
This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1994-1999 | Harley-Davidson | FLHR Road King | Base |
| 1998-1999 | Harley-Davidson | FLHRCI Road King Classic | Base |
| 1996-1997 | Harley-Davidson | FLHRI Road King | Base |
| 1987-1993 | Harley-Davidson | FLHS Electra Glide Sport | Base |
| 1988,1995-1998 | Harley-Davidson | FLHT Electra Glide Standard | Base |
| 1984-1999 | Harley-Davidson | FLHTC Electra Glide Classic | Base |
| 1996-1999 | Harley-Davidson | FLHTCI Electra Glide Classic | Base |
| 1989-1997 | Harley-Davidson | FLHTCU Electra Glide Ultra Classic | Base |
| 1995-1999 | Harley-Davidson | FLHTCUI Electra Glide Ultra Classic | Base |
| 1986-1990 | Harley-Davidson | FLST Heritage Softail | Base |
| 1988-1999 | Harley-Davidson | FLSTC Heritage Softail Classic | Base |
| 1990-1999 | Harley-Davidson | FLSTF Fat Boy | Base |
| 1993 | Harley-Davidson | FLSTN Heritage Softail Nostalgia | Base |
| 1994-1996 | Harley-Davidson | FLSTN Heritage Softail Special | Base |
| 1998-1999 | Harley-Davidson | FLTR Road Glide | Base |
| 1998-1999 | Harley-Davidson | FLTRI Road Glide | Base |
| 1995-1999 | Harley-Davidson | FXD Dyna Super Glide | Base |
| 1992 | Harley-Davidson | FXDB-D Dyna Glide Daytona | Base |
| 1991 | Harley-Davidson | FXDB-S Dyna Glide Sturgis | Base |
| 1993-1999 | Harley-Davidson | FXDL Dyna Low Rider | Base |
| 1994-1999 | Harley-Davidson | FXDS-Conv Dyna Convertible | Base |
| 1993-1999 | Harley-Davidson | FXDWG Dyna Wide Glide | Base |
| 1999 | Harley-Davidson | FXDX Dyna Super Glide Sport | Base |
| 1987-1994 | Harley-Davidson | FXLR Low Rider Custom | Base |
| 1984-1994 | Harley-Davidson | FXR Super Glide II | Base |
| 1999 | Harley-Davidson | FXR2 | Base |
| 1999 | Harley-Davidson | FXR3 | Base |
| 1985-1987 | Harley-Davidson | FXRC Low Rider Chrome | Base |
| 1986 | Harley-Davidson | FXRD Sport Glide Grand Touring | Base |
| 1984 | Harley-Davidson | FXRDG Disc Glide | Base |
| 1984-1992 | Harley-Davidson | FXRS Low Glide | Base |
| 1990-1993 | Harley-Davidson | FXRS-Conv Low Rider Sport Convertible | Base |
| 1986-1993 | Harley-Davidson | FXRS-SP Low Rider Sport | Base |
| 1984-1992 | Harley-Davidson | FXRT Sport Glide | Base |
| 1985 | Harley-Davidson | FXSB Low Rider - Belt | Base |
| 1984-1999 | Harley-Davidson | FXST Softail Standard | Base |
| 1999 | Harley-Davidson | FXSTB Night Train | Base |
| 1986-1999 | Harley-Davidson | FXSTC Softail Custom | Base |
| 1988-1999 | Harley-Davidson | FXSTS Springer Softail | Base |
| 1995-1997 | Harley-Davidson | FXSTSB Bad Boy | Base |
| 1985-1986 | Harley-Davidson | FXWG Wide Glide | Base |