The U.S. aircraft register, updated daily
Parts

Cooler Oil

No failure report names the cooler oil. 14 FAA approvals let 8 companies make a replacement cooler oil, United Technologies, Hamilton Sundstrand holding the most (4).

Approved replacement parts 14 parts manufacturer approvals

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

For these models most: Douglas DC-8 (1), Bombardier DHC-8 Dash 8 and Q400 (1).

MakerPartReplacesFitsGrantedStatus
Ametek Hughes TreitlerCooler-Oil, Surface, AC Generator 12536-61493-00030C2697-02Pratt & Whitney Canada Corp. PW308A2024-01-31current
Ametek Hughes TreitlerCooler-Oil, Surface, AC Generator 12536-60493-00030C2697-01Pratt & Whitney Canada Corp. PW308A, PW308C2024-01-31current
Meggitt (Troy) INCCooler-Oil, Fuel Cooled 10988A3079118-01Pratt & Whitney Canada Corp. PT6C-67A2018-09-14current
United Technologies, Hamilton SundstrandCooler-Oil, Air Cooled, IDG 33B321733B3217PRATT & WHITNEY CANADA CORP PW814GA PW815GA2018-03-05current
United Technologies, Hamilton SundstrandCooler-Oil, Air Cooled, IDG 33B6500-0133B6500-01Pratt & WhitneyCanada Corp. PW814GA, PW815GA2017-11-01current
United Technologies, Hamilton SundstrandCOOLER-OIL, VARIABLE FREQUENCY DRIVE 10190305306759Pratt WhitneyCanada Corp PW1519G, PW1521G, PW1524G2016-05-01current
United Technologies, Hamilton SundstrandCOOLER-OIL, VARIABLE FREQUENCY DRIVE 10190305306759PWC PW1519G, PW1521G, PW1524G2016-02-17current
Meggitt (Troy) INC (Formerly Stewart Warner South Wind CORP)Cooler-Oil, Fueled Cooled 10845BPratt & Whitney Canada Corp. 3118263-01Pratt & Whitney Canada PW123, AF, B2005-07-26current
Meggitt (Troy) INC (Formerly Stewart Warner South Wind CORP)Cooler-Oil, Fueled Cooled 10845BPratt & Whitney Canada Corp. 3118263-01Pratt & Whitney Canada PW123, AF, B2004-11-02current
Meggitt (Troy) INC (Formerly Stewart Warner South Wind CORP)Cooler-Oil, Fueled Cooled 10845BPratt 7 Whitney Canada Corp. 3118263-01Pratt & Whitney Canada PW123, AF, B2003-09-17current
Lori INCCooler- Oil System 28E99-7deHavalland 28E99-7Bombardier, Inc. DHC-8-100 Series, DHC-8-200 Series,...2002-02-13current
Honeywell International INCCooler Oil 22E14-122E14-1McDonnell Douglas DC-8-71, -71F, -722001-08-29current
Ametek Hughes TreitlerCooler-Oil, air 12688-000PW 1B6051Pratt & Whitney PW 20371993-05-02current
Parker Hannifin CORPCooler Oil/ Lube UA537628-3GE 5044T42P02General Electric CT71993-04-05current

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.