Your common
Cessna/Piper aircraft are
typically rated for 2000 hours before an overhaul
May be required.
At a minimum, annual checkups are FAA mandatory. I guess that means..regular maintenance WILL occur. Most of it must be done by an FAA Certified mechanic.
Bottom Line: 2000 hours is a reasonable time for an internal combustion engine to remain serviceable.
Just a
Benchmark...... for consideration.
NB