The 648012P015 piston ring is an OEM Continental compression ring used in certified aircraft piston engine cylinder assemblies. It is part of the piston ring pack and is designed to maintain combustion sealing, regulate oil consumption, and support efficient heat transfer between the piston and cylinder wall. This specific part number corresponds to a standard compression ring element used in Continental ring sets, commonly installed in the #2 or specified groove position depending on engine configuration.

It is selected during engine overhaul based on exact cylinder bore size, piston fit class, and overhaul manual specifications.

Reference listings confirm it as a Continental OEM piston ring supplied as a single replacement part for certified aviation engines.

Key features include:

Genuine Continental OEM piston compression ring
Precision-machined steel alloy construction
Designed for tight combustion chamber sealing
Helps maintain stable compression and engine efficiency
Controls oil film distribution on cylinder walls
Resistant to high-temperature and high-pressure operation
Part of multi-ring piston sealing system (compression/oil control stack)
Matched to specific bore and piston configuration during overhaul
FAA-approved aircraft engine component for certified piston engines
Used in Continental engine maintenance, repair, and overhaul procedures