Keith Black KB348.010 95-Inch Twin Cam Piston Set, .010 Oversize

Keith Black piston set .010 oversize and is for a 3.875 inch bore. Piston set has a compression ratio of 9.3:1 and includes rings.

The Keith Black KB348.010 95-inch Twin Cam piston set features a hypereutectic alloy cast in a permanent steel mold. This construction supports a lightweight piston design intended to help produce more power, use less fuel, and provide extended service life. The pistons are .010 oversize for a 3.875-inch bore and provide a 9.3:1 compression ratio.

The alloy's low heat transfer helps keep the piston skirts cooler, minimizing piston expansion. Combined with high compression ring placement, the design is intended to support increased power and fuel economy. High ring placement also helps reduce detonation and increase top ring temperature.

For proper break-in, run the engine at moderate speeds for at least 500 miles and avoid excessive operation in lower gears. Refer to the manufacturer's Keith Black Symmetrical-Asymmetrical Piston Installation Guide for installation instructions. This set fits 2007–2016 Harley-Davidson FXST applications as specified by the supplier.

Features:

• Brand: Keith Black
• Part Number: KB348.010
• Application: 95-inch Twin Cam piston set
• Oversize: .010 oversize for a 3.875-inch bore
• Compression Ratio: 9.3:1
• Material: Hypereutectic alloy
• Construction: Cast in a permanent steel mold
• Design: Low heat transfer alloy helps minimize piston expansion
• Ring Placement: High compression ring placement helps reduce detonation and increase top ring temperature
• Break-In Requirement: Run at moderate speeds for at least 500 miles and avoid excessive running in lower gears
• Fitment: 2007–2016 Harley-Davidson FXST
• Accessory Items: 16-0622 - Ring-O-Matic Ring Compressor Tool Kit, 16-0075 - Wrist Pin Ring Tool, 60-0167

Fitment:
Harley Davidson FLST 2007
Harley Davidson FLST 2008
Harley Davidson FLST 2009
Harley Davidson FLST 2010
Harley Davidson FLST 2011
Harley Davidson FLST 2012
Harley Davidson FLST 2013
Harley Davidson FLST 2014
Harley Davidson FLST 2015
Harley Davidson FLST 2016
Harley Davidson FLST 2017
Harley Davidson FLT 2007
Harley Davidson FLT 2008
Harley Davidson FLT 2009
Harley Davidson FLT 2010
Harley Davidson FLT 2011
Harley Davidson FLT 2012
Harley Davidson FLT 2013
Harley Davidson FLT 2014
Harley Davidson FLT 2015
Harley Davidson FLT 2016
Harley Davidson FXD 2007
Harley Davidson FXD 2008
Harley Davidson FXD 2009
Harley Davidson FXD 2010
Harley Davidson FXD 2011
Harley Davidson FXD 2012
Harley Davidson FXD 2013
Harley Davidson FXD 2014
Harley Davidson FXD 2015
Harley Davidson FXD 2016
Harley Davidson FXD 2017
Harley Davidson FXST 2007
Harley Davidson FXST 2008
Harley Davidson FXST 2009
Harley Davidson FXST 2010
Harley Davidson FXST 2011
Harley Davidson FXST 2012
Harley Davidson FXST 2013
Harley Davidson FXST 2014
Harley Davidson FXST 2015
Harley Davidson FXST 2016
Harley Davidson FXST 2017