HASTINGS Replacement Piston Rings — Bore 4.000", Piston +0.005", Displacement 114" – 18-24 Softail, 19-24 Touring, 19-24 Trike, 17-24 CVO

Replacement piston rings engineered for reliable sealing, improved oil control, and consistent combustion performance. 🔧🇺🇸

The kit includes top compression rings with a barrel face, Napier second compression rings, and three-piece Flex Vent oil control rings that promote side sealing to prevent oil from being forced under the ring.

Top rings are coated using a PVD (Physical Vapor Deposition) process for enhanced wear resistance and to aid heat transfer between the piston and cylinder wall.

• Reverse twist second ring with a taper-machined ring face duplicates the outside bottom scraping edge of a positive twist torsional ring.
• Three-piece oil ring design provides uniform pressure through four steel rails and two expanders for positive oil control.
• Two rings per groove, with rails configured as two rail rings per expander ring to ensure conformability to the bore.

Includes enough rings for two pistons: 2 top compression rings, 2 second compression rings, 2 expander rings, and 4 steel rails.

Made in the USA. ✅