The U.S. aircraft register, updated daily
Parts

Wheel Adapter

No failure report names the wheel adapter. 2 FAA approvals let 2 companies make a replacement wheel adapter, Gar-Aero Alaska Tundra Tires holding the most (1).

Approved replacement parts 2 parts manufacturer approvals

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

For these models most: Piper PA-12 Super Cruiser (2), Cessna A185 Skywagon (2), Cessna 185 Skywagon (2), Cessna 180 Skywagon (2), Cessna 170 (2), Found Aircraft Canada Inc FBA-2 (1).

MakerPartReplacesFitsGrantedStatus
Floats Alaska LLCWheel Adapter 6-10Modification PartPiper PA-12, -18, -18A2006-06-29current
Gar-Aero Alaska Tundra TiresWheel Adapter 6-10Modification PartCessna 170, 170A, 170B2003-09-14current

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.