Description
The wrist pin bushing is a critical wear component in your Twin Cam engine—it controls piston pin clearance and directly impacts power delivery, engine longevity, and reliability under load. Factory bushings degrade over time, increasing clearance and reducing efficiency. The JIMS 3998K replaces worn bushings with precision-machined bronze construction, restoring tight tolerances and ensuring your engine performs at its best.
Built from solid bronze bar stock and machined to concentricity tolerances tighter than .0002″, this bushing delivers the fit and durability your engine demands. Whether you’re rebuilding after high-mileage service or upgrading a stock engine, this U.S.-made component is essential for serious mechanics and enthusiasts who refuse to compromise on quality.
- Solid bronze construction
- Concentricity: <.0002"
- Lead-in edge design
- Made in U.S.A.
- Twin Cam compatible
- Harley-Davidson 1999-2006
- MPN: 3998K
- Professional-grade precision
