Description
If you’re running a 103ci Twin Cam and want measurable gains in power, durability, and ring sealing efficiency, the Wiseco Tracker Series Piston Kit delivers the precision engineering that separates reliable performance builds from marginal ones. This forged kit addresses the real demands of high-output engines—superior lubrication, minimal blow-by, and reduced friction—without the guesswork of generic pistons. Whether you’re building for consistent streetable power or sustained high-RPM performance, Wiseco’s U.S.-manufactured quality and proven track record make this a legitimate foundation for engine reliability.
- 3.875″ bore diameter
- 10.5:1 compression ratio
- Forged piston crown
- Ample valve pockets
- Force-fed pin oiling
- ArmorGlide® skirt coating
- Pressure seal groove
- Precision-fit ring set
- Includes two pistons
- Piston pins included
- Circlips included
- Fits 2007–2017 models
- Harley-Davidson 103ci Twin Cam
- Made in U.S.A.
