HASTINGS Replacement Piston Rings — 3.498" bore, +0.010" oversize – 83-86 Big Twin, 83-95 Touring, 94 Dyna, 83-94 FXR, 00 CVO, 84, 89 Police, 85-89 Softail, 88-95, 97-00, 02 Sportster

Replacement piston rings engineered to restore compression, control oil, and improve combustion efficiency. 🔧

• Includes top compression rings, second compression rings, and oil control rings.
• Top compression rings are barrel face for improved sealing and heat transfer between piston and cylinder wall.
• 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 uniform pressure and positive oil control.
• Reverse twist ring combined with a taper-machined ring face duplicates the OD bottom-side scraping edge of a positive twist torsional ring.
• Made in the USA 🇺🇸

Please read the instructions furnished with the piston for correct ring installation; special attention is required to the top ring end gap due to thermal conductivity and piston design.

Kit includes: 2× top compression rings, 2× second compression rings, 2× expander rings, 4× steel rails. Includes enough rings for two pistons; two rings per groove except for the rails.