Description
Cirrus Aircraft 18052-301 Neck — Filler Cap
Threaded glycol fill neck of the filler cap in the FIKI ice protection installation (IPC 30-07-01), one per aircraft. The IPC lists it with locking center 18052-302 and riveted nut 18052-103, and on SR22 4435 and SR22T 1473 and up as part of the ice protection filler cap assembly.
Fit, per the Cirrus Illustrated Parts Catalog:
- SR22 serials 4261 and up
- SR22T serials 1171 and up
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.




