HASTINGS Replacement Piston Rings — 3.498" bore, +0.010" oversize – 83-86 Big Twin, 83-95 Touring, 85-89, 99 Softail, 91, 94 Dyna, 83-94 FXR, 99-00 CVO, 88-00, 02 Sportster

🔧 Premium replacement piston ring kit engineered to restore sealing, oil control, and compression for two pistons.

• Includes top compression rings, second compression rings, and three-piece oil control rings.
• Top compression rings feature a barrel face and are cast coated for reliable wear resistance.
• Second compression rings are reverse torsional taper face to promote side sealing and better oil economy.
• Reverse twist design with a taper-machined ring face duplicates the OD bottom-side scraping edge of a positive twist torsional ring.
• Three-piece flex vent oil control rings: four steel rails and two expanders provide uniform pressure and positive oil control.
• Design helps heat transfer between the piston and cylinder wall and controls combustion chamber gases to transfer energy to the crankshaft.
• Includes enough rings for two pistons; two rings per groove, except rails which are two rail rings per one expander ring.
• Made in the USA.

Kit Includes:
• 2x Top Compression Rings
• 2x Second Compression Rings
• 2x Expander Rings
• 4x Steel Rails