HASTINGS Replacement Piston Rings — 3.498" bore, Standard – 48-64, 70-86 Big Twin, 80, 83-98 Touring, 85-99 Softail, 91-98 Dyna, 82-94 FXR, 86-03, 05-17 Sportster

High-quality replacement piston ring kit designed to restore compression, control oil consumption, and improve engine longevity. 🔧

• Includes top compression rings, second compression rings, and oil control rings.
• Top compression rings feature a barrel face for improved sealing and heat transfer.
• Second compression rings use a reverse torsional taper face to promote side sealing and better oil economy.
• Oil control rings are a three-piece flex vent design with two expanders and four steel rails for positive oil control and uniform pressure.
• Kit includes enough rings for two pistons; two rings per groove except the rails, which use two rail rings per one expander.

The reverse twist ring with a taper-machined face duplicates the OD bottom-side scraping edge of a positive twist torsional ring.

Made in the USA 🇺🇸. Due to the thermal conductivity and design of KB pistons, special attention is required to the top ring end gap; please read the instructions furnished with the piston for correct ring installation.