# PMA parts: Lycoming LTIO-540-U2A

A list on [Lycoming LTIO-540-U2A](https://openairdocs.org/engine/lycoming-ltio-540-u2a.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 30 · 1,470 PMA parts

- [ES66M19385](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID186804045820251216184409.0001): Clamp, Magneto · Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces 66M19385 · Nov 10, 2025
- [ES10-400567](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID182838314420251216184405.0001): Bearing, Ball · Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces 10-400567 · Nov 10, 2025
- [ES1351-3LE24P](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID178929692820251216184410.0001): Screw, Self-Locking · Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces NAS1351-3LE24P · Nov 10, 2025
- [ES10-349249](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID172741321620251216184404.0001): Washer, Bowed · Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces 10-349249 · Nov 10, 2025
- [ES10-90351-9](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID149017542820251216184411.0001): O-Ring · Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces 10-90351-9 · Nov 10, 2025
- [ES10-391391](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID129491715020251216184411.0001): Gasket, 1200 Harness · Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces 10-391391 · Nov 10, 2025
- [ES10-391401](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID117542090920251216184412.0001): Gasket · Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces 10-391401 · Nov 10, 2025
- [ES10-349328](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID114147850320251216184403.0001): Flat Washer · Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces 10-349328 · Nov 10, 2025
- [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
- [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
- [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
- [CFRB9089](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID126352418220250312124924.0001): Valve, Poppet Relief · PRECISION AIRMOTIVE LLC · PMA PQ0111NM · Replaces RB9089 · Dec 31, 2024
- [AA48111-2](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID120682187320240813134136.0001): Oil Filter · Aero Accessories LLC · PMA PQ1206CE · Replaces Aero AccessoriesAA48111Champion… · Jul 12, 2024
- [No part number](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID192873678120240701174358.0001): Hartzell Engine Technologies LLC · PMA PQ1383CE · Jun 20, 2024
- [ES3018](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID194884707820251216184204.0001): Clamp, Bearing Cap · Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces M3018 · May 20, 2024
- [AM-3021](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID194256093820251216184144.0001): Screw Distributor Block · Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces M3021 · May 20, 2024
- [ES3221](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID189601053820251216184228.0001): Screw · Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces M3221 · May 20, 2024
- [AK-3975](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID181109606820251216184201.0001): Coil, Ignition · Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces M3009, M3114, M3525, K3975, K3975 · May 20, 2024
- [ES3179](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID180904668720251216184210.0001): Vent Plug, Pressure · Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces M3179 · May 20, 2024
- [AM-3006](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID178460806720251216184151.0001): Bearing · Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces M3006 · May 20, 2024
- [AM2536](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID175576430320251216184152.0001): Woodruff Key · Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces M2536 · May 20, 2024
- [ES3040](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID175045989620251216184205.0001): Coil Wedge · Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces M3040 · May 20, 2024
- [AK-3984](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID168254730520251216184200.0001): Capacitor · Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces M3183, K3984 · May 20, 2024
- [AM-2556](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID164604517920251216184155.0001): Cotter Pin · Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces M2556 · May 20, 2024
- [ES3637K](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID163564757720251216184213.0001): Contact Point Secondary · Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces M3637 · May 20, 2024
- [AM-3217](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID152412216720251216184157.0001): Wave Spring Washer · Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces M-3217 · May 20, 2024
- [AM-3485](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID151878274520251216184156.0001): Bearing Cap, Assembly · Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces M3485 · May 20, 2024
- [AM-3215](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID151335825620251216184148.0001): Brush Assy, Distributor · Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces M3215 · May 20, 2024
- [ES3823](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID146282172620251216184219.0001): Dist. Block & Gear Assy. · Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces K3823 · May 20, 2024
- [ES3307](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID146106419020251216184214.0001): Gasket Pressure Kit · Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces K3307 · May 20, 2024
- [ES3331](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID142668191320251216184207.0001): Oil Seal · Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces M3331 · May 20, 2024
- [ES3828](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID141865244620251216184221.0001): Rotor Gear · Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces K3828 · May 20, 2024
- [AM-3020](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID134367835920251216184146.0001): Screw · Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces M3020 · May 20, 2024
- [AM3611](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID125128266220251216184158.0001): Cam · Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces M3611, M1522 · May 20, 2024
- [ES3826](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID112237278720251216184206.0001): Spacer · Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces M3826 · May 20, 2024
- [ES3630](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID108310017320251216184222.0001): Bearing Cap, Assembly · Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces M3630, K3630 · May 20, 2024
- [A-13081K](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID103306043420251216184147.0001): Contact Assembly · Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces M3081 · May 20, 2024
- [ES3019](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID100047104220251216184208.0001): Nut · Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces M3019 · May 20, 2024
- [AB-382585](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID195988018720251216184453.0001): Ignition ContactAssembly · Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental10-382585 · Dec 8, 2023
- [AB-157160](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID193485923720251216184437.0001): Screw · Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental 10-157160 · Dec 8, 2023
- [AB-400623](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID193069304920251216184444.0001): Ball Bearing · Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental… · Dec 8, 2023
- [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
- [ES10-35935-6](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID180932652920251216184430.0001): Screw · Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental 10-35935-6 · Dec 8, 2023

Next page: https://openairdocs.org/engine/lycoming-ltio-540-u2a/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 ('E14EA')
  AND len(list_intersect(tcds_models, ['LTIO-540-U2A'])) > 0
ORDER BY supplement_date DESC, drs_guid DESC
```

This list as a web page: https://openairdocs.org/engine/lycoming-ltio-540-u2a/pma

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.