# PMA parts: Lycoming IO-540-U1B5D

A list on [Lycoming IO-540-U1B5D](https://openairdocs.org/engine/lycoming-io-540-u1b5d.md).

Current parts manufacturer approvals (PMA): parts the FAA has approved companies to make as replacements or modifications. Each record lists its models as free text; OpenAirDocs matched them to this engine model on its data sheet, so check the FAA record before relying on it. Newest first.

Page 1 of 22 · 1,069 PMA parts

- [AB-160844](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID100141747720251216184413.0001): Spring & Brush Assembly · Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces 10-160844 · Nov 10, 2025
- [OC](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID178549155320250923184433.0001): Oil Cooler Preheat Kit · Hartzell Propeller LLC · PMA PQ2040CE · Modification part · Sep 12, 2025
- [AE45BS](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID187750711420250908153020.0001): Brush Rack Assembly · Aerospace Turbine Rotables · PMA PQ3736CE · Replaces Prestolite Part Number ALU1045BS · Aug 27, 2025
- [AE943](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID185624017520250908153027.0001): Rotor Shaft · Aerospace Turbine Rotables · PMA PQ3736CE · Replaces Prestolite Part Number ALU-228 · Aug 27, 2025
- [AE1003](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID179565848920250908153019.0001): Drive End Housing · Aerospace Turbine Rotables · PMA PQ3736CE · Replaces Prestolite Part Number A2E1003K · Aug 27, 2025
- [AE45BS-1](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID173583138520250908153031.0001): Brush Rack Assembly · Aerospace Turbine Rotables · PMA PQ3736CE · Replaces Prestolite Part Number ALU-1045BS · Aug 27, 2025
- [AE944](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID157009852420250908153027.0001): Rotor Shaft · Aerospace Turbine Rotables · PMA PQ3736CE · Replaces Prestolite Part Number ALE-273 · Aug 27, 2025
- [AE45BS-E](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID143460060920250908153031.0001): Brush Rack Assembly · Aerospace Turbine Rotables · PMA PQ3736CE · Replaces Prestolite Part Number ALE-1045BS · Aug 27, 2025
- [AE2241](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID127316494620250908153022.0001): Fan Assembly · Aerospace Turbine Rotables · PMA PQ3736CE · Replaces Prestolite Part Number 90-2241 · Aug 27, 2025
- [AE1132](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID103582853720250908153023.0001): Slip Ring End Housing · Aerospace Turbine Rotables · PMA PQ3736CE · Replaces Prestolite Part Numbers ALK-1132AS… · Aug 27, 2025
- [SL6](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID151538433320250923185921.0001): Engine Preheat Kit · Hartzell Propeller LLC · PMA PQ2040CE · Modification part · Aug 4, 2025
- [TXPL6](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID146504457020250923185923.0001): Engine Preheat Kit · Hartzell Propeller LLC · PMA PQ2040CE · Modification part · Aug 4, 2025
- [HSS](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID104096221220250923185925.0001): Engine Preheat Kit · Hartzell Propeller LLC · PMA PQ2040CE · Modification part · Aug 4, 2025
- [AA48111-2](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID120682187320240813134136.0001): Oil Filter · Aero Accessories LLC · PMA PQ1206CE · Replaces Aero AccessoriesAA48111Champion… · Jul 12, 2024
- [201F-5003](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID182515755020240701174400.0001): Fuel Pump · Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Lear RomecRG17980D/MLycoming… · Jun 20, 2024
- [ES10-35936-7](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID191691087420251216184428.0001): Screw · Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental 10-35936-7 · Dec 8, 2023
- [AB-14268](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID116974477620251216184440.0001): Washer · Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental 10-14268 · Dec 8, 2023
- [AB-53397](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID113466624320251216184442.0001): Washer, Flat · Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental 10-53397 · Dec 8, 2023
- [No part number](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID122172067820240301172627.0001): Hartzell Engine Technologies LLC · PMA PQ1383CE · Dec 1, 2023
- [TA2927-1](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID196557185220231109131559.0001): Engine Preheat Kit · Hartzell Propeller LLC · PMA PQ2040CE · Modification part · Oct 31, 2023
- [TA2927-2](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID168120339420231109131600.0001): Engine Preheat Kit · Hartzell Propeller LLC · PMA PQ2040CE · Modification part · Oct 31, 2023
- [RG-72812](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID121232944720240531133025.0001): Gasket · Real Gasket TN · PMA PQ1666CE · Replaces 06B21326LW-1330672812 · Aug 29, 2023
- [KA16042](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID125828825320230821125948.0001): Harness · Kelly Aerospace Energy Systems LLC · PMA PQ4176CE · Replaces M6042 · May 5, 2023
- [KA12919](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID139011586920230330124343.0001): Ignition Harness Assy · Kelly Aerospace Energy Systems LLC · PMA PQ4176CE · Replaces M2919 · Oct 27, 2022
- [KA12919](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID105376798320230330124349.0001): Ignition Harness Assy · Kelly Aerospace Energy Systems LLC · PMA PQ4176CE · Replaces 10-821614-6 · Oct 27, 2022
- [ES-4019LS](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID185701279720220916174121.0001): Alternator Assembly · Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Lycoming 32C21420 · Aug 3, 2022
- [PM2403](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID197160420320220916164414.0001): Starter Assembly · Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces 122-24HT,122-HT/ec,122-24LS,122-24PM,12… · May 16, 2022
- [ERZ‐8012](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID185883705920220916164346.0001): Starter Assembly · Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Kelly… · May 16, 2022
- [PM1203](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID180763837820220916164409.0001): Starter Assembly · Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces 122-l2HT,122-12LS,122-t2PM,122-NL,31A22… · May 16, 2022
- [ERZ‐8011](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID179976557020220916164344.0001): Starter Assembly · Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Kelly Aerospace MZ-4205… · May 16, 2022
- [PM1201](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID178083546420220916164407.0001): Starter Assembly · Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces 149-12HT149-12LS,149-12PM,149-NL,31A221… · May 16, 2022
- [PM2401](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID152894865720220916164412.0001): Starter Assembly · Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces 149-24HT,149-24HT/ec,149-24L5,149-24PM… · May 16, 2022
- [ERB‐8011](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID131425514420220916164339.0001): Starter Assembly · Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Kelly Aerospace MHB-4001, MHB-4002… · May 16, 2022
- [MZ‐4222](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID114823705220220916164402.0001): Starter Assembly · Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Lycoming LW-15571 · May 16, 2022
- [ALY-4520](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID450561012220220308141059.0001): Alternator Assembly · Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Electrosystems 40183 · Feb 25, 2022
- [ALT-4521](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID410980653202203081410460.0001): Alternator Assembly · Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Electrosystems 40165 · Feb 25, 2022
- [ALU-4521](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID194532152320220308141049.0001): Alternator Assembly · Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Electrosystems 40161 · Feb 25, 2022
- [AEL11956 (and oversizes up to.040”)](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID552474595120220308191708.0001): Guide, Intake · Continental Aerospace Technologies Inc · PMA PQ1269CE · Replaces LW11956 · Feb 4, 2022
- [“](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID495126290220210713131246.0001): “ · Kelly Aerospace Energy Systems LLC · PMA PQ4176CE · May 21, 2021
- [SL-STD-160](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID889354517620210823174227.0001): Gasket · Superior Air Parts Inc · PMA PQ0060SW · Replaces STD-160 · May 10, 2021
- [SL-STD-1065 P002](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID740516129120210823172410.0001): Dowel, Stepped · Superior Air Parts Inc · PMA PQ0060SW · Replaces STD-1065-P02 · May 10, 2021
- [SL-STD-1045](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID666831168520210823174225.0001): Gasket · Superior Air Parts Inc · PMA PQ0060SW · Replaces STD-1045 · May 10, 2021
- [SL-STD-1821](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID502815267620210823174229.0001): Hose · Superior Air Parts Inc · PMA PQ0060SW · Replaces STD-1821 · May 10, 2021
- [SL-STD-1441](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID440407446820210823174227.0001): Gasket · Superior Air Parts Inc · PMA PQ0060SW · Replaces STD-1441 · May 10, 2021
- [SL-STD-111](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID246865756120210823174133.0001): Gasket · Superior Air Parts Inc · PMA PQ0060SW · Replaces STD-111 · May 10, 2021
- [SL-STD-2180](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID119210209320210823174230.0001): Hose · Superior Air Parts Inc · PMA PQ0060SW · Replaces STD-2180 · May 10, 2021
- [SL-STD-1410](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID956383456620210823173811.0001): Nut · Superior Air Parts Inc · PMA PQ0060SW · Replaces STD-1410 · May 5, 2021
- [SL-STD-1204](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID727910962021082317381001.0001): Bolt · Superior Air Parts Inc · PMA PQ0060SW · Replaces STD-1204 · May 5, 2021
- [SL-STD-1925](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID623876214320210823173811.0001): Screw · Superior Air Parts Inc · PMA PQ0060SW · Replaces STD-1925 · May 5, 2021
- [X-4086AC](https://drs.faa.gov/browse/excelExternalWindow/E3DC03D4075C26D1862585DE005079C2.0001): Bearing - Ball, Single Row · Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces X-4086, as used in alternators… · Sep 1, 2020

Next page: https://openairdocs.org/engine/lycoming-io-540-u1b5d/pma.md?page=2

## The whole list in SQL

Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS:

```sql
SELECT drs_guid, part_number, part_name, holder, pma_number, replaces_part, supplement_date, tcds_models
FROM 'https://openairdocs.org/data/latest/faa_type_certificate_pma.parquet'
WHERE tcds_number IN ('1E4')
  AND len(list_intersect(tcds_models, ['IO-540-U1B5D'])) > 0
ORDER BY supplement_date DESC, drs_guid DESC
```

This list as a web page: https://openairdocs.org/engine/lycoming-io-540-u1b5d/pma

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