The U.S. aircraft register, updated daily
Parts

Oleo Piston

No failure report names the oleo piston. 1 FAA approvals let 1 company make a replacement oleo piston, Airframes Alaska LLC holding the most (1).

Approved replacement parts 1 parts manufacturer approvals

A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a oleo piston and sell it as an approved part for the models named. These are the companies holding such approvals for a oleo piston:

For these models most: Maule MX-7 (1), Maule M-7 (1), Maule M-6 (1), Maule M-5 (1), Maule M-4 (1).

MakerPartReplacesFitsGrantedStatus
Airframes Alaska LLCOleo Piston ABI-4014B4014BMaule Aerospace Technology Bee Dee M4, M-4, M-4C2022-08-04current

Sources: the FAA's service difficulty reports since 1995 (a report is a part that failed and was fixed, as filed by an airline, repair station or owner; the count shows reporting as much as reliability) and the parts manufacturer approvals in the FAA's Dynamic Regulatory System. The part name is the reporters' and the approval holders' own words, reduced to the first plain words so that spellings meet.