What this is Set of 3 piston rings, each 68 mm diameter, designed as a direct replacement for damaged engine piston and pin assemblies. Manufactured from high-strength materials with improved tensile and yield limits for greater durability. Key benefits — why you need it Restores compression and oil control by replacing worn or damaged rings, helping engines run smoothly again. Improved material strength and heat resistance reduce ring deformation and failure under high-temperature conditions. Lower operating stress on the piston and cylinder decreases fuel consumption and helps maintain efficient combustion. Minimizes cylinder wear, extending engine life and reducing the frequency and cost of future repairs. Performance and features Precise 68 mm size for straightforward, direct fit replacement where this specification is required. Innovative ring design enhances sealing performance and tolerates extreme heat, maintaining function under heavy loads. Reduced mechanical stress on assemblies contributes to more consistent engine performance and better fuel economy. Compatibility and function Intended for engines that specify 68 mm piston rings; used to replace worn piston and pin assemblies without modifying existing components. Functions: restore compression, control oil consumption, reduce cylinder wear, and improve thermal and mechanical reliability. Typical applications / use scenarios 1. Engine rebuild or overhaul: Replace worn rings during a rebuild to restore compression ratios and oil control for aged or high-mileage engines. 2. Repair after piston damage: Use as a direct replacement when piston rings or pin assemblies have failed or seized, preventing further cylinder damage. 3. Preventive maintenance to improve efficiency: Install during scheduled maintenance to reduce oil burning and improve fuel economy in engines that accept 68 mm rings. What you get Three 68 mm piston rings in high-strength material, ready for direct installation in compatible piston assemblies. Reliability note Designed to maintain performance under elevated temperatures and mechanical load, helping preserve engine integrity and longevity without altering original engine design.