HASTINGS Piston Ring Set — 3.498" bore, +0.030" oversize – 83-86 Big Twin, 83-90, 93, 95 Touring, 85-86, 89, 99 Softail, 91 Dyna, 83-94 FXR, 99-00 CVO, 84, 89 Police, 88-95, 97-99, 02 Sportster

Replacement piston ring kit engineered to provide dependable sealing, consistent heat transfer, and improved oil control for two pistons. 🔧

The kit includes top compression rings with a barrel face, second compression rings with a reverse torsional taper face, and three-piece Flex Vent oil control rings to promote side sealing and better oil economy.

Three-piece oil control rings deliver uniform pressure through four steel rails and two expanders, ensuring positive oil control and excellent conformability to the bore.

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.

• 2x Top compression rings
• 2x Second compression rings
• 2x Expander rings
• 4x Steel rails

Includes enough rings for two pistons (two rings per groove, except the rails which are two rails per one expander).