4.310" Bore x 4.5" Stroke
Replacement pistons for 17-later Milwaukee-Eight models equipped with 131CI Stage IV kits
Forged from high-strength aluminum
Precision-machined and features coated skirts for a tight-tolerance fit and quieter operation
Complete kit includes two pistons, rings, wrist pins and clips
This piston kit is intended as a replacement component for motorcycles already equipped with compatible 131CI Stage IV engine upgrades. Please verify compatibility with your project before purchasing. Suggested for experienced builders only.