The 648011P015 piston ring is an OEM Continental compression ring used in certified aircraft piston engines. It is part of the piston ring pack and is typically installed in the #3 compression ring position depending on engine configuration. Its role is to maintain combustion sealing, regulate oil control, and support efficient heat transfer between piston and cylinder walls.

This ring is commonly used in Continental engine overhaul and cylinder service programs, where it is selected based on exact bore size, piston fit class, and overhaul manual specifications. It is also referenced within Continental ring set configurations such as 649226 assemblies.

Key features include:

Genuine Continental OEM piston compression ring
Precision-machined steel alloy construction for high-temperature stability
Maintains combustion chamber sealing and stable compression
Helps control oil film distribution on cylinder walls
Designed for high-RPM aviation piston engine operation
Wear-resistant surface treatment for extended service life
Part of multi-ring piston sealing system (compression ring stack)
Matched to specific engine cylinder/piston configurations per IPC
FAA-approved aircraft engine component for certified piston engines
Used in Continental engine maintenance, repair, and overhaul procedures