HASTINGS Replacement Piston Rings — Bore 3.498", Oversize +0.020" – 83-86 Big Twin, 83-98 Touring, 85-99 Softail, 91-98 Dyna, 83-94 FXR, 99-00 CVO, 88-03 Sportster

Replacement piston rings designed to restore compression, control oil, and improve engine sealing. 🔧

• Includes top compression rings, second compression rings, and oil control rings.
• Top compression rings are barrel face to assist heat transfer between the piston and cylinder wall.
• Second compression rings are reverse torsional taper face to promote side sealing and better oil economy.
• Reverse twist second ring with a taper-machined ring face duplicates the OD bottom-side scraping edge of a positive twist torsional ring.
• Oil control rings are a three-piece flex vent; two rails and one expander provide uniform pressure for positive oil control.
• Includes enough rings for two pistons; two rings per groove except for rails where two rails share one expander.
• Made in the USA. 🇺🇸
• Due to the thermal conductivity and design of KB pistons, special attention is required to the top ring end gap; read the piston instructions for correct installation.