HASTINGS Replacement Piston Rings — 4.000", 114 cu in, Standard – 18-21 Softail, 19-21 Touring, 19-21 Trike, 17 CVO

🔧 Restore engine sealing and oil control with this complete replacement piston ring kit, engineered for reliable performance and improved oil economy.

• Includes top compression rings, second compression rings, and oil control rings.
• Top compression rings feature a barrel face for improved sealing.
• Second compression rings are Napier design to enhance side sealing and combustion control.
• Coated using a PVD (Physical Vapor Deposition) process for wear resistance and better heat transfer between the piston and cylinder wall.
• Reverse twist 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 design, providing uniform pressure via four steel rails and two expanders for positive oil control.
• Three-piece rails allow better conformability to the bore and promote improved oil economy.

Made in the USA 🇺🇸

Kit includes:

• 2× top compression rings
• 2× second compression rings
• 2× expander rings
• 4× steel rails