Description
Cirrus Aircraft 17354-001 Proportion Unit Assembly — G3, PU300EC147
Proportion unit assembly, quantity 1. Cirrus's ordering portal lists 17354-001 as PROPORTION UNIT with the description “Assy, Proportion Unit G3 Pu300Ec147”; the Cirrus parts catalog lists it as PROPORTIONING UNIT, WING in the Basic² ice protection installation (IPC 30-06-01). The IPC lists 17354-002 for spares in this position and lists 17354-002 as the part from SR22 3681 and SR22T 0028.
Fit, per the Cirrus Illustrated Parts Catalog:
- Basic² ice protection (IPC 30-06-01): SR22 serials 2438 through 3680, SR22T serials 0001 through 0027
TKS filters: Cirrus's maintenance manual (05-10) schedules replacement of the ice protection system filter every 1,200 hours or 2 years, whichever comes first. Filter elements: 26115-101 (Basic and Basic² systems; FIKI SR22 3403–3850 and SR22T 0001–0315) and 21986-203 (FIKI SR22 3851 and up, SR22T 0316 and up).
Serial ranges are transcribed from the Cirrus IPC. Confirm your aircraft's serial number, installed equipment and service bulletin compliance against current Cirrus documents before ordering.
Reference only — not a maintenance authority. The part numbers, effectivity and service bulletin references shown above are published as an aid to our customers and may not reflect current Cirrus data. They must not be used as the basis for installation. Mechanics must obtain and use their own current Cirrus Illustrated Parts Catalog and the current revision of any service bulletin, and must verify applicability against the aircraft serial number, service bulletin compliance and any installed STCs, before ordering or installing any part.



