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ALU Series Service . . . . . . . . List .. . . . . . . .. . . . . .Parts. .. . . . . . . . . . . . . . . .

24 Volt Alternator REPLACEMENT LIST:

Original Equip. Alternator Part Number

ALU-6421LS ALU-8403 ALU-8403LS ALU-8421 ALU-8421LS ALU-8421RS ALU-9404L ALU-9404R ALU-9422L ALU-9422R ES4032LS* ES4039LS*

Current Replaced By

Use Use Use Use Use Use Use Use Use Use Use Use

Factory Overhaul Alternator Part Number

ALU-6521RS ALU-8521R ALU-8521RS ALU-8521R ALU-8521RS ALU-8521RS ALU-9522R ALU-9522R ALU-9522R ALU-9522R ALU-8532LS ALU-8539LS

Alternator Part Number

ALU-6521LS ALU-8521 ALU-8521LS ALU-8521 ALU-8521LS ALU-8521LS ALU-9522 ALU-9522 ALU-9522 ALU-9522 ALU-8532LS ALU-8539LS

Engine/Airframe Application

Lycoming Lycoming Lycoming Lycoming Lycoming Lycoming Lycoming Lycoming Lycoming Lycoming Lycoming Lycoming

* Only available through the Engine or Airframe Original Equipment Manufacturer.

NOTE:

The "R" at the end of an "Original Equipment Alternator Part Number" now signifies Factory Overhauled. See parts list for alternator being serviced when component parts are required.

Hartzell Engine Technologies · (877) 359-5355 · Fax (334) 386-5410 · www.HartzellEngineTech.com

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ALU Series

(Exploded Parts View of Typical ALU Series Alternator)

1 2 3 4 5 6 7 8

10 11 12 14 16 17 9 12 15 19 15 13 6 5

1

18

12 15

NOTE:

Circled items represent mandatory replacement parts required at each overhaul.

Hartzell Engine Technologies · (877) 359-5355 · Fax (334) 386-5410 · www.HartzellEngineTech.com

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No.

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

Part

Nut & Washer Package Drive Pulley Vent Fan (2 Pieces) Rotor Shaft Spacer Drive End Head Assembly Drive End Bearing Drive End Retainer Rotor Assembly Stator Assembly Eyelet Package Negative Rectifier Package Slip Ring End Head Assembly Thru-bolt Package Pos. Rectifier & Plate Assembly Terminal Stud Package Brush Holder & Spring Assembly Brush Set Slip Ring End Bearing Slip Ring End Cover Repair Kit

ALU-6421LS

90-33 (g) 90-2241 ALD-21 ALE-1003K X-4612 GR-32 90-2501 (c) ALE-2008AB 90-818 XA-944JS 90-2501 (c) ALA-20GS ALE-1054A* 90-2030 ALU-2045BS (b) ALE-2013AS (b) X-4130 (a) (NA) 90-3037

ALU-6521LS

90-33 (g) 90-2241 ALD-21 ALE-1003K X-4612 GR-32 ALE-2228S-1 ALE-2008AB 90-818 XA-944JS ALK-1232LS-2 ALA-20GS ALE-1054A* 90-2030 ALU-2045BS ALE-2013AS X-4130 (a) (NA) 90-3037

ALU-8403

90-33 PU-672A 90-2241 ALD-21 ALE-1003K X-4612 GR-32 90-2501 (c) ALE-2008AB 90-818 XA-944JS 90-2501 (c) ALA-20GS ALE-1054A* 90-2030 ALU-2045BS (b) ALE-2013AS (b) X-4130 (a) (NA) 90-3037

ALU-8403LS

90-33 (g) 90-2241 ALD-21 ALE-1003K X-4612 GR-32 90-2501 (c) ALE-2008AB 90-818 XA-944JS 90-2501 (c) ALA-20GS ALE-1054A* 90-2030 ALU-2045BS (b) ALE-2013AS (b) X-4130 (a) (NA) 90-3037

ALU-8421

90-33 PU-672A 90-2241 ALD-21 ALE-1003K X-4612 GR-32 90-2501 (c) ALE-2008AB 90-818 XA-944JS 90-2501 (c) ALA-20GS ALE-1054A* 90-2030 ALU-2045BS (b) ALE-2013AS (b) X-4130 (a) (NA) 90-3037

ALU-8421LS

90-33 (g) 90-2241 ALD-21 ALE-1003K X-4612 GR-32 90-2501 (c) ALE-2008AB 90-818 XA-944JS 90-2501 (c) ALA-20GS ALE-1054A* 90-2030 ALU-2045BS (b) ALE-2013AS (b) X-4130 (a) (NA) 90-3037

No.

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

Part

Nut & Washer Package Drive Pulley Vent Fan (2 Pieces) Rotor Shaft Spacer Drive End Head Assembly Drive End Bearing Drive End Retainer Rotor Assembly Stator Assembly Eyelet Package Negative Rectifier Package Slip Ring End Head Assembly Thru-bolt Package Pos. Rectifier & Plate Assembly Terminal Stud Package Brush Holder & Spring Assembly Brush Set Slip Ring End Bearing Slip Ring End Cover Repair Kit

ALU-8521

90-33 PU-672A 90-2241 ALD-21 ALE-1003K X-4612 GR-32 ALU-2228S-1 ALE-2008AB 90-818 XA-944JS ALK-1232LS-2 ALA-20GS ALE-1054A* 90-2030 ALU-2045BS (b) ALE-2013AS (b) X-4130 (a) ALU-1062A 90-3037

ALU-8521LS

90-33 (g) 90-2241 ALD-21 ALE-1003K X-4612 GR-32 ALU-2228S-1 ALE-2008AB 90-818 XA-944JS ALK-1232LS-2 ALA-20GS ALE-1054A* 90-2030 ALU-2045BS (b) ALE-2013AS (b) X-4130 (a) ALU-1062A 90-3037

ALU-8532LS

90-33 (NA) 90-2241 ALD-21A ALE-1003K X-4612 GR-32 ALU-2227S-1 ALE-2008AM 90-818 XA-944JS ALK-1232ES-2 ALA-20JS ALE-1054A* 90-2043 ALU-2045BS (b) ALE-2013AS (b) X-4130 (a) (NA) 90-3037

ALU-9404L

8X-4075 (f) (NA) (NA) ALU-23 (e) ALU-1043 (d) X-4087 GR-32 90-2515 (c) ALE-2008ABS 90-818 XA-944JS 90-2515 (c) ALA-20GS ALE-1054A* 90-2043 ALU-2045BS (b) ALE-2013AS (b) X-4130 (a) (NA) 90-3038

ALU-9422L

8X-4075 (f) (NA) (NA) ALU-23 (e) ALU-1043 (d) X-4087 GR-32 90-2515 (c) ALE-2008ABS 90-818 XA-944JS 90-2515 (c) ALA-20GS ALE-1054A* 90-2043 ALU-2045BS (b) ALE-2013AS (b) X-4130 (a) (NA) 90-3038

ALU-9522

8X-4075 (f) (NA) (NA) ALU-23 (e) ALU-1043 (d) X-4087 GR-32 ALU-2238S-1 ALE-2008ABS 90-818 XA-944JS ALE-1242AAS-2 ALA-20GS ALE-1054A* 90-2043 ALU-2045BS (b) ALE-2013AS (b) X-4130 (a) (NA) 90-3038

Notes:

(a) (b) S.R.E. Bearing is included with S.R.E. Head and Rotor Package. ALU-2045BS or ALE-2045BS Brush Holder & Spring Assembly is included with S.R.E. Head & Rotor Packages. ALE-1013AS Captive Brush & Spring Sets are still available for units containing the superceded ALU-1045BS or ALE-1045BS Brush Holder design. The superceded ALU-1045BS or ALE-1045BS must be replaced at overhaul with the latest configuration. (c) S.R.E. Head & Rotor Kit must be used at time of first repair/overhaul. Individual components may be used thereafter. Contents of 90-2501 S.R.E. Head & Rotor Kit: S.R.E. Head Assembly With Bearing - ALK-1232CS-2; Brush Holder Assembly - ALU-2045BS; Rotor Assembly - ALU-2228S-1. Contents of 90-2515 S.R.E. Head & Rotor Kit: S.R.E. Head Assembly With Bearing - ALE-1242AAS-2; Brush Holder Assembly - ALU-2045BS; Rotor Assembly - ALU-2238S-1. (d) XA-1026 Drive End Oil Seal also available. (e) XA-744AZ Shaft Spacer O-ring Seal available. (f) Nut Only; Washer not required. (g) Available through engine or airframe OEM. (NA) Not Applicable

Circled items represent mandatory replacement parts required at each overhaul, and are available in repair kits from Hartzell Engine Technologies.

*

Rectifier diode package available separately - Part Number XA-943FS.

Hartzell Engine Technologies · (877) 359-5355 · Fax (334) 386-5410 · www.HartzellEngineTech.com

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