The U.S. aircraft register, updated daily
Parts

Axial Piston

No failure report names the axial piston. 2 FAA approvals let 1 company make a replacement axial piston, Eaton Aerospace/Vickers Fluid Systems holding the most (2).

Approved replacement parts 2 parts manufacturer approvals

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

For these models most: Mcdonnell Douglas MD-11 (1), Airbus A320 (1).

MakerPartReplacesFitsGrantedStatus
Eaton Aerospace/Vickers Fluid SystemsAxial Piston Variable Displacement Pressure Controlled... 350880-6Vickers Model PV3-240-10 623977Airbus A320-2111994-09-27current
Eaton Aerospace/Vickers Fluid SystemsAxial Piston, Electrical Controlled Motor Assembly,... 418575Douglas BJG7000-5507McDonnell Douglas MD-11, MD-11F1991-07-29current

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.