The U.S. aircraft register, updated daily
Parts

Tank Sump

No failure report names the tank sump. 4 FAA approvals let 1 company make a replacement tank sump, Aviation Enterprises holding the most (4).

Approved replacement parts 4 parts manufacturer approvals

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

For these models most: Cessna T337 (4), Cessna 337 Skymaster (4), Cessna 336 (1).

MakerPartReplacesFitsGrantedStatus
Aviation EnterprisesTank Assembly Sump RH AE 1426014-81426014-8Cessna 337 series, T337 series2004-12-05current
Aviation EnterprisesTank Assembly Sump LH AE 1426014-71426014-7Cessna 337 series, T337 series2004-12-05current
Aviation EnterprisesTank Assembly Sump RH AE 1426014-21426014-2Cessna 337 series, T337 series2004-12-05current
Aviation EnterprisesTank Assembly Sump LH AE 1426014-11426014-1Cessna 336 series, 337 series, T337 series2004-12-05current

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.