The U.S. aircraft register, updated daily
Parts

Co Cartridge

No failure report names the co cartridge. 2 FAA approvals let 1 company make a replacement co cartridge, Hrd Aerosystems INC 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 co cartridge and sell it as an approved part for the models named. These are the companies holding such approvals for a co cartridge:

For these models most: Gulfstream GIV-X G450 (1), Boeing 737 (1).

MakerPartReplacesFitsGrantedStatus
Hrd Aerosystems INCCO2 Cartridge H201386201386The Boeing Company 737-900ER Series2026-03-09current
Hrd Aerosystems INCCO2 Cartridge H201386201386Gulfstream Aerospace... GIV-X2025-12-04current

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.