Wiseco K1690 Forged Standard 11:1 Piston Kit - Part 11-9840

Wiseco 80 inch Evolution domed piston kit is standard size. Piston kit has a compression of 11:1 compression and includes rings.

The Wiseco K1690 Forged Standard 11:1 Piston Kit, part 11-9840, is designed for specified 1984–1993 Harley-Davidson FXR applications. This kit features a forged standard piston with an 11:1 compression ratio, providing a replacement option for compatible engine builds.

Before operation, follow the manufacturer's piston installation and fitment guidance. Wiseco notes that the engine should be run at moderate speeds for at least 500 miles while avoiding excessive operation in lower gears to properly break in new pistons and rings. Installation instructions are available through the supplier-provided Wiseco Piston Installation Guide and Fitment document.

The product is supplied as a kit and has a country of origin of USA. Suggested related items include the Wiseco Piston Ring Set, part 11-9759, and Piston Circlips, part 11-9773. Accessory items listed for this product include the Ring-O-Matic Ring Compressor Tool Kit, part 16-0622, part 60-0167, and Wrist Pin Ring Tool, part 16-0075.

Features:

• Brand: Wiseco
• Part Number: K1690
• Product Part: 11-9840
• Design: Forged standard piston kit
• Compression Ratio: 11:1
• Fitment: 1984–1993 Harley-Davidson FXR
• Unit of Measure: Kit
• Country of Origin: USA
• Break-In Guidance: Run the engine at moderate speeds for at least 500 miles while avoiding excessive operation in lower gears to properly break in new pistons and rings

Fitment:
Harley Davidson FLST 1986
Harley Davidson FLST 1987
Harley Davidson FLST 1988
Harley Davidson FLST 1989
Harley Davidson FLST 1990
Harley Davidson FLST 1991
Harley Davidson FLST 1992
Harley Davidson FLST 1993
Harley Davidson FLST 1994
Harley Davidson FLST 1995
Harley Davidson FLST 1996
Harley Davidson FLST 1997
Harley Davidson FLST 1998
Harley Davidson FLT 1984
Harley Davidson FLT 1985
Harley Davidson FLT 1986
Harley Davidson FLT 1987
Harley Davidson FLT 1988
Harley Davidson FLT 1989
Harley Davidson FLT 1990
Harley Davidson FLT 1991
Harley Davidson FLT 1992
Harley Davidson FLT 1993
Harley Davidson FLT 1994
Harley Davidson FLT 1995
Harley Davidson FLT 1996
Harley Davidson FLT 1997
Harley Davidson FLT 1998
Harley Davidson FXD 1991
Harley Davidson FXD 1992
Harley Davidson FXD 1993
Harley Davidson FXD 1994
Harley Davidson FXD 1995
Harley Davidson FXD 1996
Harley Davidson FXD 1997
Harley Davidson FXD 1998
Harley Davidson FXR 1984
Harley Davidson FXR 1985
Harley Davidson FXR 1986
Harley Davidson FXR 1987
Harley Davidson FXR 1988
Harley Davidson FXR 1989
Harley Davidson FXR 1990
Harley Davidson FXR 1991
Harley Davidson FXR 1992
Harley Davidson FXR 1993
Harley Davidson FXR 1994
Harley Davidson FXST 1984
Harley Davidson FXST 1985
Harley Davidson FXST 1986
Harley Davidson FXST 1987
Harley Davidson FXST 1988
Harley Davidson FXST 1989
Harley Davidson FXST 1990
Harley Davidson FXST 1991
Harley Davidson FXST 1992
Harley Davidson FXST 1993
Harley Davidson FXST 1994
Harley Davidson FXST 1995
Harley Davidson FXST 1996
Harley Davidson FXST 1997
Harley Davidson FXST 1998