These can be found under many piper cowlings and commonly crack.
It is no secrect these are made from .040 2024T3.
OEM list $262.60 (03/24/21) 99094-02 plate reinforcement
These are fabicated from .040 2024T3
This is Not a PMA part. Eligability for installation determined by installer.
$99.95 + shipping
Piper Oil Access Door Doubler
CNC cut and Fabricated from .040 2024T3 by Airframe Innovations -"America's Northern Most PMA"
These are not-pma parts.
These are replica's of Piper 99094-02 plate reinforcement