The U.S. aircraft register, updated daily
Parts

Dynafocal Engine

No failure report names the dynafocal engine. 3 FAA approvals let 2 companies make a replacement dynafocal engine, Aero Fabricators INC holding the most (2).

Approved replacement parts 3 parts manufacturer approvals

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

For these models most: Piper PA-18 Super Cub (2), Piper PA-19 (1), Piper PA-12 Super Cruiser (1).

MakerPartReplacesFitsGrantedStatus
Dakota Cub AircraftDynafocal Engine Mount R-1031R-1031Piper Aircraft Inc. PA-18, PA-18S, PA-18 “105” (Special)2023-06-30current
Aero Fabricators INCDynafocal Engine Mount Assembly MM -390-001Piper aircraft P/Ns 12209-00 12351-15 & 12351-11Piper PA-18 series2010-06-03current
Aero Fabricators INCDynafocal Engine Mount Assembly M-525-100Modification PartPiper PA-121998-03-08current

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.