Description
Cirrus Aircraft 19800-004 Master Control Unit — MCU 140, Factory-New, with CAPS Ignition Mod
Master Control Unit (MCU 140), factory-new, with the CAPS ignition modification, one per aircraft, listed in the Master Control Unit 140 installation (IPC 24-30-03).
Cirrus Aftermarket Fulfillment confirmed on 12 Oct 2026 that 19800-005 (MCU 140 Assembly) has been replaced by 19800-004, and that 19800-004 is the only MCU 140 Cirrus offers. Cirrus's parts ordering system also supplies this part when 19800-003 is ordered. Confirm installation eligibility for your aircraft against current Cirrus data. A rebuilt unit is 19800-004S.
Fit, per the Cirrus Illustrated Parts Catalog:
- SR20 serials 2489 and up
- SR22 serials 4782 and up
- SR22T serials 1913 and up
- Earlier serials (SR20 2339 through 2488, SR22 4435 through 4781, SR22T 1473 through 1912) list MCU 140 19800-003, and the IPC directs its spares to 19800-004
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.