Hartzell Engine Technologies, LLC
Named as the FAA publishes it on its approvals.
Holds 45 approved modifications, most of them for the Piper PA-31 Navajo and Chieftain. Holds 4,147 approvals to make replacement parts. FAA spelling: Hartzell Engine Technologies, LLC.
Approved modifications 45 · newest first
Piper PA-31 Navajo and Chieftain 5Piper PA-23 Apache and Aztec 5Beechcraft 95 Travel Air and Baron 55 5Piper PA-34 Seneca 4Piper PA-30 Twin Comanche 4Navion NAVION H 4Navion NAVION G 4Navion NAVION F 4Navion NAVION D 4Beechcraft 35 Bonanza and Debonair 4Piper PA-28 Cherokee, Warrior, Archer and Arrow 3Piper PA-24 Comanche 3
2023-04-04SA11137SC · Installation of Plane-Power ALT-FLX alternator · F.260, F.260B, F.260C
2016-12-13SA10077SC · Installation of push-button starter system. · T-211, D-1190S, 15AC
2016-12-13SE10076SC · Modify engine by installation of C12ST2/S starter. · C90-12F, C90-12FH, C90-12FJ
2016-03-09SE00218NY · Replacement of Lycoming starter with SKY-TEC 12 volt starter installed. · IO-360 Series, IO-320 Series, IO-540 Series
2016-03-09SE00226NY · Replacement of Lycoming starter with SKY-TEC 24-volt starter Models 149-24HT and 122-24HT. Approval limited to... · IO-320-A1A, IO-320-A2A, IO-320-B1A
2016-03-09SE00357NY · Replacement of Lycoming starter with SKY-TEC 24-volt starter installed. · IO-360 Series, IO-320 Series, IO-540 Series
2016-03-09SE1081NE · Replacement of Lycoming starter with SKY-TEC 12 volt starter Model149-12HTor 122-12HT. · Lycoming EnginesIO-320-A1A, Lycoming...
2016-02-11SA02653CH · Installation of C&D Associates Combustion Heater Kit 31, and optional ram air kit · 99, A99, B99
2016-02-11SA02641CH · Installation of C&D Associates Combustion Heater Kit 30 (P/N CD11003K30) · PA-31T, PA-31T1
2016-02-11SA01751CH · Installation of C&D Associates auxiliary rear combustion heater Model CD35K heater kit, P/N CD12031K9 · PA-31-300, PA-31-325, PA-31-350
2016-02-11SA02119CH · Installation of C&D Associates Combustion Heater Kit 17 P/N CD14045K17 · 680-F(P), 680-FL(P)
2016-02-11SA02707CH · Installation of C&D Associates combustion heater Kit P/N CD12015K26 · G-44, G-44A
2016-02-11SA02120CH · Installation of C&D Associates Combustion Heater Kit 18 P/N CD14046K18 · 680-T
2016-02-11SA01801CH · Installation of Combustion Heater Kit P/N CD12091K11 · 190, 195, 195A
2016-02-11SA01566CH · Installation of C&D Associates Combustion Heater Kit · PA-23-160, PA-23-235, PA-23-250
2016-02-11SA02973CH · Installation of C&D Associates Distribution Modification Kit P/N CD29151 · PA-31-350
2016-02-11SA01945CH · Installation of C&D Associates Combustion Heater Kit 13 P/N CD14050K13 · 56TC, 58, 95-55
2016-02-11SA02002CH · Installation of C&D Associates Combustion Heater Kit 14 P/N CD14060K14 · 50, B50, C50
2016-02-11SA02696CH · Replaces Southwind combustion heater 84720D for Cessna 340, 340A, S/N 340A-0001 thru 340A-0200 w/SA03118NY turbine... · 340, 340A
2016-02-11SA02816CH · Installation of C&D Associates Kit 33 combustion heater P/N CD50000K33 · G58
2016-02-11SR02562CH · Installation of C&D Associates Combustion Heater Kit 28 (P/N CD14190K28) · S-55B
2016-02-11SA00944CH · Replace Janitrol combustion heater Model 81D94-X (XX) with C&D Associates combustion heater Model CD25K, CD35K, and CD45K · PA-60-600 (Aerostar 600), PA-60-601P (Aerostar...
2016-02-11SA01526CH · Installation of C&D Associates Combustion Heater Kit 7 (Part Number CD12011K7) · Lake LA-4-200, Lake LA-4, Lake LA-4A
2016-02-11SA01949CH · Installation of C&D Associates Combustion Heater Kit 12, P/N CD11214K12 · 170, 170A, 170B
2016-02-11SA02487CH · Installation of C&D Associates Combustion Heater Kit 23 (P/N CD12008K23R or CD12016K23R) or Kit 27 (P/N CD12017K27L... · Navion (Army L-17A), Navion A (Army L-17B and...
2016-02-11SA01772CH · Installation of C&D Associates Combustion Heater Kit P/N CD11007K8 · Navion (Army L-17A), Navion A (Army L-17B and...
2016-02-11SA02785CH · Installation of C&D Associates 24-volt combustion heater pump P/N CD52050 · PA-34-200, PA-34-200T, PA-34-220T
2016-02-11SA00971CH · Remove South Wind 940 series combustion heater and install C&D Associates, Inc. TSO-C20 approved Heater Kit 3 (P/N... · PA-23, PA-30, Lake LA-4-200
2016-02-11SA01660CH · Remove Janitrol P/N C15C54 or Twin Commander P/N 88035-5 combustion heater and install C&D Associates, Inc. Model... · 500-A, 500-B, 500-S
2016-02-11SA02118CH · Installation of C&D Associates Combustion Heater Kit 16 P/N CD11004K16 · D-1
2016-02-11SA03334CH · Installation of C&D combustion heater P/N CD14193-1 · 58, 58TC, 95-B55
2016-02-11SA03134CH · Installation of C&D Associates combustion heater Kit 41 P/N CD12030K41 · DHC-2 Mk.I, DHC-2 Mk.II, DHC-2 Mk.III
2014-07-28SA2015WE · The 12 volt 24 volt D.C. electrical generating system is replaced by an alternator system · G-164A
2014-07-17SA10682SC · Installation of alternator and voltage regulator · A-2, A-4, A-5
2014-07-17SA10921SC · Installation of an alternator and regulator as a replacement to existing OEM generators and mechanical voltage regulators · T-211, D-1190S, A-3
2014-03-06SA971WE · Installation of a Jasco #6540 (35a.) Alternator Kit or a Jasco #6555 (50a.) Alternator Kit · 150, 150A, 150B
2014-03-06SH194WE · Installation of a Jasco Alternator Part No. 7555-1 24-volt system · 47J-2, 47J-2A, 47J
2014-03-06SA1246WE · Installation of Jasco Alternator Kit. Models 6555-2 and 6555-2-2 · Navion (Army L-17A), Navion A (Army L-17B and L-17C)
2014-03-06SH1839NM · Installation of Skytronics, Part No. 7150T-300-1 Alternators · 269A-1, 269A, 269B
2014-03-06SA4582SW · Installation of a JASC 6650 12-volt 50 amp alternator J12-100SP voltage regulator and associated wiring · PA-24
2014-03-06SA4362WE · Installation of Skytronics Part No. 6650T-PA30 Alternators (maximum continuous rating limited to 60 amps.) · PA-30
2014-03-06SA4438NM · Installation of Skytronics Model 7650T-B95 70 AMP alternators, Skytronics Model J12M24SP Voltage Controllers and... · B95A
2014-03-06SA999WE · Installation of a Jasco #6540-1 (35a.) Alternator Kit or Jasco #6555-1 (50a.) Alternator Kit · 35, 35R, A35
2014-03-06SH191WE · Installation of a Jasco Alternator Part No. 7555-1 24 volt system · 47G-2, 47G
1979-07-03SH193WE · Installation of a Jasco Alternator Part No. 7555-1 24 volt system · 47G-2A-1, 47G-2A, 47G-3
Replacement parts approved 4,147 parts manufacturer approvals, 4,147 current
A parts manufacturer approval lets a company make a replacement part for someone else's aircraft or engine and sell it as an approved part. This company's approvals are mostly for engine (2,027), other and general (1,341), electrical power (513).
Northrop C-125 519Beechcraft 95 Travel Air and Baron 55 96Piper PA-60 Aerostar 93Piper PA-34 Seneca 91Piper PA-31 Navajo and Chieftain 85Cessna T-310 80Cessna 172 Skyhawk 73Cessna T207 69Cessna TU206 66Cessna P210 Pressurized Centurion 61Cessna U206 Stationair 60Piper PA-30 Twin Comanche 58
2025-11-10Cable, Clip ES10-5752 · replaces 10-5752 · IO-720-A1A, IO-720-A1B, IO-720-B1A
2025-11-10Washer, Bowed ES10-349249 · replaces 10-349249 · O-235-C2B, O-235-E2B, O-235-F2B
2025-11-10Washer, Bowed ES10-349249 · replaces 10-349249 · TIO-540-AF1A with STC SE04445AT installed,...
2025-11-10Flat Washer ES10-349328 · replaces 10-349328 · C90-12F, C90-12FH, C90-12FJ
2025-11-10Retainer, Bearing ES10-349247 · replaces 10-349247 · O-235-C2B, O-235-E2B, O-235-F2B
2025-11-10Magneto Assembly, S-1200 Series, 6 Cyl ES-349290-9 · replaces LW-349290-9, LW-349290-9D, LW-11589,... · TVO-435-F1A, VO-435-B1A
2025-11-10Bearing, Ball ES10-400567 · replaces 10-400567 · TIO-540-AF1A with STC SE04445AT installed,...
2025-11-10S-1200 Series Magneto, 4-Cyl ES-349365-10 · replaces LW-349365-10, LW-349365-10D, 10-349365-10,... · LIO-360-C1E6
2025-11-10Magneto Assembly, S-1200 Series, 6 Cyl ES-349290-2 · replaces LW-349290-2, LW-349290-2D, LW-349290-12,... · TIGO-541-B1A, TIGO-541-D1A, TIGO-541-D1B
2025-11-10O-Ring ES10-90351-9 · replaces 10-90351-9 · IO-720-B1B
2025-11-10Washer, Flat ES10-78655 · replaces 10-78655 · IO-720-A1A, IO-720-A1B, IO-720-B1A
2025-11-10Magneto Assembly, S-1200 Series, 6 Cyl ES-349310-14 · replaces LW-349310-14, 10-349310-14, BL-349310-14,S6RN-1209 · LTIO-540-J2B
2025-11-10Cam, 1200 ES10-349243-2 · replaces 10-349243-2 · O-235-C2B, O-235-E2B, O-235-F2B
2025-11-10Bearing, Ball ES10-400567 · replaces 10-400567 · O-235-C2B, O-235-E2B, O-235-F2B
2025-11-10Gear, Spur, 1200 Series, 6-Cyl ES10-349242 · replaces 10-349242 · TIO-540-AF1A with STC SE04445AT installed,...
2025-11-10Magneto Assembly, S-1200 Series, 6 Cyl ES-349310-4 · replaces LW-349310-4, LW-349310-4D, LW-349310-12,... · IGO-540-A1C, IGSO-540-A1A, IGSO-540-A1C
2025-11-10S-1200 Series Magneto, 4-Cyl ES-349285-7 · replaces LW-349235-3, LW-349235-3D, LW-349235-4,... · AIO-360-A1A, AEIO-360-A2C, HIO-360-C1B
2025-11-10Magneto Assembly, S-1200 Series, 6 Cyl ES-349220-5 · replaces 643730, 646981, 10-349220-5, BL-349220-5, S6RN-1201 · IO-470-D, IO-470-E, IO-470-F
2025-11-10Washer, Bowed ES10-349249 · replaces 10-349249 · C90-12F, C90-12FH, C90-12FJ
2025-11-10Magneto Assembly, S-1200 Series, 6 Cyl ES-349220-4 · replaces 633091, 643729, 646980, 10-349220-2,... · GTSIO-520-D, GTSIO-520-E, GTSIO-520-F
2025-11-10Magneto Assembly, S-1200 Series, 6 Cyl ES-349260-6 · replaces 632959, 643808, 646983, 10-349260-1,... · IO-470-D, IO-470-E, IO-470-F
2025-11-10Magneto Assembly, S-1200 Series, 6 Cyl ES-349310-1 · replaces LW-349310-1, LW-349310-1D, 75453, 10-349310-1,... · AEIO-540-D4B5, AEIO-540-D4D5, AEIO-540-L1B5
2025-11-10Gasket, 1200 Harness ES10-391391 · replaces 10-391391 · LTIO-540-U2A, TIO-540-U2A, TIGO-541-E1A
2025-11-10Magneto Assembly, S-1200 Series, 6 Cyl ES-349350-5 · replaces 640030, 643810, 646957, 653290, 10-349350-5,... · IO-470-D, IO-470-E, IO-470-F
2025-11-10Gasket ES10-391401 · replaces 10-391401 · LTIO-540-U2A, TIO-540-U2A, TIGO-541-E1A
2025-11-10Spring & Brush Assembly AB-160844 · replaces 10-160844 · O-290-D, O-290-D2, O-290-D2A
2025-11-10Bearing, Ball ES10-400567 · replaces 10-400567 · IO-720-A1A, IO-720-A1B, IO-720-A1BD
2025-11-10Magneto Assembly, S-1200 Series, 6 Cyl ES-349290-1 · replaces LW-349290-1, LW-349290-1D, 75454, 10-349290-1,... · AEIO-540-D4B5, AEIO-540-D4D5, AEIO-540-L1B5
2025-11-10Screw ES10-35937-24 · replaces 10-35937-24 · C90-12F, C90-12FH, C90-12FJ
2025-11-10Retainer, Bearing ES10-349247 · replaces 10-349247 · TIO-540-AF1A with STC SE04445AT installed,...
2025-11-10S-1200 Series Magneto, 4-Cyl ES-349365-6 · replaces LW-349365-6, LW-349365-6D, LW-11650,... · LIO-360-C1E6
2025-11-10Spring & Brush Assembly AB-160844 · replaces 10-160844 · O-235-A, O-235-AP, O-235-B
2025-11-10Cam, 1200 ES10-349243-2 · replaces 10-349243-2 · TIO-540-AF1A with STC SE04445AT installed,...
2025-11-10Magneto Assembly, S-1200 Series, 6 Cyl ES-349290-17 · replaces LW-349290-17, 10-349290-17, BL-349290-17, S6RN-1208 · LTIO-540-J2A
2025-11-10Cam, 1200 ES10-349243-2 · replaces 10-349243-2 · C90-12F, C90-12FH, C90-12FJ
2025-11-10Spring & Brush Assembly AB-160844 · replaces 10-160844 · A-50-1, A-50-3, A-50-4
2025-11-10S-1200 Series Magneto, 4-Cyl ES-349365-3 · replaces 10-349365-3, BL-349365-3, S4LN-1227 · C90-12F, C90-12FH, C90-12FJ
2025-11-10Magneto Assembly, S-1200 Series, 6 Cyl ES-349370-4 · replaces LW-349370-4, LW-349370-4D, 75453, 10-349370-4,... · AEIO-540-D4B5, HIO-540-A1A, IO-540-C4D5
2025-11-10Magneto Assembly, S-1200, Series, 6 Cyl ES-349290-4 · replaces LW-349290-4, LW-349290-4D, 75898, 10-349290-4,... · TVO-435-B1B, TVO-435-D1A, TVO-435-G1A
2025-11-10Gasket ES10-391401 · replaces 10-391401 · IO-720-B1B
2025-11-10Clamp, Magneto ES66M19385 · replaces 66M19385 · O-235-C2B, O-235-E2B, O-235-F2B
2025-11-10S-1200 Series Magneto, 4-Cyl ES-349305-1 · replaces LW-349305-1, LW-349305-1D, 75896, 10-349305-1,... · O-235-C2B, O-235-E2B, O-235-F2B
2025-11-10Stud, Hex 10-32 ES10-349221 · replaces 10-349221 · O-235-C2B, O-235-E2B, O-235-F2B
2025-11-10Stud, Hex 10-32 ES10-349221 · replaces 10-349221 · TIO-540-AF1A with STC SE04445AT installed,...
2025-11-10Flat Washer ES10-349328 · replaces 10-349328 · TIO-540-AF1A with STC SE04445AT installed,...
2025-11-10Washer, Flat ES10-78655 · replaces 10-78655 · TIO-540-AF1A with STC SE04445AT installed,...
2025-11-10Spring & Brush Assembly AB-160844 · replaces 10-160844 · A-40, A-40-2, A-40-3
2025-11-10S-1200 Series Magneto, 4-Cyl ES-349365-3 · replaces LW-349365-3, LW-349365-3D, 75897, 10-349365-3,... · O-235-C2B, O-235-E2B, O-235-F2B
2025-11-10Gear, Spur, 1200 Series, 6-Cyl ES10-349242 · replaces 10-349242 · IO-470-D, IO-470-E, IO-470-F
2025-11-10Spring & Brush Assembly AB-160844 · replaces 10-160844 · GO-145-C2, GO-145-C3, O-145-B2
2025-11-10Screw ES10-35937-24 · replaces 10-35937-24 · TIO-540-AF1A with STC SE04445AT installed,...
2025-11-10Gear, Spur, 1200 Series, 4-Cyl ES10-349241 · replaces 10-349241 · IO-720-A1A, IO-720-A1B, IO-720-B1A
2025-11-10O-Ring ES10-90351-9 · replaces 10-90351-9 · TSIOL-550-A
2025-11-10Magneto Assembly, S-1200 Series, 6 Cyl ES-349310-10 · replaces LW-349310-10, 10-349310-10, BL-349310-10,S6LN-1209 · TVO-435-B1B, TVO-435-D1A, TVO-435-G1A
2025-11-10Gasket, 1200 Harness ES10-391391 · replaces 10-391391 · IO-720-B1B
2025-11-10Sleeve, Clear ES10-180046-28 · replaces 10-180046-28 · IO-720-A1A, IO-720-A1B, IO-720-B1A
2025-11-10Clamp, Magneto ES66M19385 · replaces 66M19385 · TIO-540-AF1A with STC SE04445AT installed,...
2025-11-10S-1200 Series Magneto, 4-Cyl ES-349305-3 · replaces LW-349305-3, LW-349305-3D, LW11651Y,... · LIO-360-C1E6
2025-11-10Gasket, 1200 Harness ES10-391391 · replaces 10-391391 · TSIOL-550-A
2025-11-10Stud, Hex 10-32 ES10-349221 · replaces 10-349221 · IO-720-A1A, IO-720-A1B, IO-720-B1A
2025-11-10Retainer, Bearing ES10-349247 · replaces 10-349247 · IO-720-A1A, IO-720-A1B, IO-720-B1A
2025-11-10Cable, Clip ES10-5752 · replaces 10-5752 · C90-12F, C90-12FH, C90-12FJ
2025-11-10Magneto Assembly, S-1200 Series, 6 Cyl ES-349260-7 · replaces 633090, 643807, 646982, 10-349260-2,... · GTSIO-520-D, GTSIO-520-E, GTSIO-520-F
2025-11-10Magneto Assembly, S-1200 Series, 6 Cyl ES-349290-3 · replaces LW-349290-3, LW-349290-3D, 75456, 10-349290-3,... · IGO-540-A1C, IGSO-540-A1A, IGSO-540-A1C
2025-11-10Gear, Spur, 1200 Series, 4-Cyl ES10-349241 · replaces 10-349241 · C90-12F, C90-12FH, C90-12FJ
2025-11-10Gear, Spur, 1200 Series, 6-Cyl ES10-349242 · replaces 10-349242 · TVO-435-B1B, TVO-435-D1A, TVO-435-F1A
2025-11-10Screw ES10-35937-24 · replaces 10-35937-24 · IO-720-A1A, IO-720-A1B, IO-720-B1A
2025-11-10Magneto Assembly, S-1200 Series, 6 Cyl ES-349370-2 · replaces LW-349370-2, LW-349370-2D, 75901, 10-349370-2,... · GSO-480-B1J6
2025-11-10Magneto Assembly, S-1200 Series, 6 Cyl ES-349290-1 · replaces 10-349290-1, BL-349290-1, S6LN-1208 · TIO-540-AF1A with STC SE04445AT installed,...
2025-11-10Magneto Assembly, S-1200 Series, 6 Cyl ES-349260-3 · replaces 646959, 10-349260-3, BL-349260-3, S6RN-1205 · IO-520-K
2025-11-10Bearing, Ball ES10-400567 · replaces 10-400567 · C90-12F, C90-12FH, C90-12FJ
2025-11-10Screw ES10-35937-24 · replaces 10-35937-24 · O-235-C2B, O-235-E2B, O-235-F2B
2025-11-10S-1200 Series Magneto, 4-Cyl ES-349365-9 · replaces LW-349365-9, LW-349365-9D, 10-349365-9,... · O-235-K2B, AEIO-360-A1B, AEIO-360-A1B6
2025-11-10Magneto Assembly, S-1200 Series, 6 Cyl ES-349350-6 · replaces 653317-1, 10-349350-6, BL-349350-6, S6LN-1225 · LTSIO-520-AE
2025-11-10Spring & Brush Assembly AB-160844 · replaces 10-160844 · 4A-235-B, 4A-235-B2, 4A-235-B3
2025-11-10Sleeve, Clear ES10-180046-28 · replaces 10-180046-28 · AIO-320-A1A, AIO-320-A2A, IO-320-B1D
2025-11-10Magneto Assembly, S-1200 Series, 6 Cyl ES-349310-8 · replaces LW-349310-8, LW-349310-8D, 10-349310-8,... · AEIO-540-D4B5, IO-540-G1D5, IO-540-K1B5
2025-11-10Gear, Spur, 1200 Series, 4-Cyl ES10-349241 · replaces 10-349241 · O-235-C2B, O-235-E2B, O-235-F2B
2025-11-10Cable, Clip ES10-5752 · replaces 10-5752 · O-235-C2B, O-235-E2B, O-235-F2B
2025-11-10Sleeve, Clear ES10-180046-28 · replaces 10-180046-28 · TIO-540-AF1A with STC SE04445AT installed,...
The first 80 of 4,147. All part makers.
Source: FAA Dynamic Regulatory System (type certificate data sheets, supplemental type certificates, parts manufacturer approvals, technical standard order authorisations). An organisation's name is as the FAA spelled it on each record; related spellings are separate pages.