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Our office will be closed 9/7/2026 in observance of Labor Day. Orders placed during this time will be processed when our office opens 9/8/2026.

Our office will be closed 9/7/2026 in observance of Labor Day. Orders placed during this time will be processed when our office opens 9/8/2026.

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24 Volt Alternators for Cummins Engines

Diesel Parts Direct has a huge inventory of new and remanufactured 24V alternators for Cummins diesel engines, organized by amperage for your shopping convenience.

If you do not see the part you are looking for, please use our quote request form or call us at 888.687.0539: our knowledgeable inside sales staff will gladly assist you.

DS-111640

ALTERNATOR - 20SI (24V, 45A, INTERNAL REGULATOR, EXTERNAL FAN)

Also Available in Remanufactured

$563.90

DS-200305-12V

ALTERNATOR - 25SI (12V, 75A, INTERNAL REGULATOR, EXT. FAN)

$641.71

DS-200305-24V

ALTERNATOR - 25SI (24V, 75A, INTERNAL REGULATOR, EXT. FAN)

$731.60

DS-203177

ALTERNATOR - 25SI (24V, 75A, INTERNAL REGULATOR, EXTERNAL FAN)

$641.71

DS-2874863

ALTERNATOR - 24SI (24V, 70A)

Also Available in Remanufactured

$571.01

DS-3016627

ALTERNATOR - 20SI (24V, 45A, INTERNAL REGULATOR, EXTERNAL FAN)

Also Available in Remanufactured

$563.90

DS-3016628

ALTERNATOR - 20SI (24V, 60A, INTERNAL REGULATOR, EXTERNAL FAN)

$560.34

DS-3020678

ALTERNATOR - K1 (24V, 45A)

Also Available in Remanufactured

$399.66

DS-3078116

ALTERNATOR - 26SI (24V, 75A)

Also Available in Remanufactured

$781.56

DS-3099842

ALTERNATOR - 22SI (24V, 145A, INTERNAL REGULATOR, EXTERNAL FAN)

$379.52

DS-3284392

ALTERNATOR - K1 (24V, 45A)

Also Available in Remanufactured

$399.66

DS-3603850

ALTERNATOR - 25SI (24V, 75A, INTERNAL REGULATOR, EXTERNAL FAN)

$641.71

DS-3604473

ALTERNATOR - 20SI (24V, 60A, INTERNAL REGULATOR, EXTERNAL FAN)

$560.34

DS-3604476

ALTERNATOR - 10SI (24V, 40A, INTERNAL REGULATOR, EXTERNAL FAN)

$331.92

DS-3604676

ALTERNATOR - 20SI (24V, 45A, INTERNAL REGULATOR, EXTERNAL FAN)

$563.90

DS-3675108

ALTERNATOR - 26SI (24V, 75A)

$781.56

DS-3675126

ALTERNATOR - 20SI (24V, 45A, INTERNAL REGULATOR, EXTERNAL FAN)

$563.90

DS-3675242

ALTERNATOR - 22SI (24V, 70A, INTERNAL REGULATOR, EXTERNAL FAN)

$359.99

DS-3675244

ALTERNATOR - 34SI (24V, 100A)

$810.06

DS-3905225

ALTERNATOR - 10SI (24V, 40A, INTERNAL REGULATOR, EXTERNAL FAN)

Also Available in Remanufactured

$331.92

DS-3909984

ALTERNATOR - 10SI (24V, 40A, INTERNAL REGULATOR, EXTERNAL FAN)

Also Available in Remanufactured

$331.92

DS-3920678

ALTERNATOR - K1 (24V, 45A)

Also Available in Remanufactured

$399.66

DS-3923550

ALTERNATOR - 20SI (24V, 45A, INTERNAL REGULATOR, EXTERNAL FAN)

Also Available in Remanufactured

$563.90

DS-3935530

ALTERNATOR - 22SI (24V, 70A, INTERNAL REGULATOR, EXTERNAL FAN)

Also Available in Remanufactured

$359.99

DS-3939014

ALTERNATOR - 20SI (24V, 45A, INTERNAL REGULATOR, EXTERNAL FAN)

Also Available in Remanufactured

$563.90

DS-3939028

ALTERNATOR - K1 (24V, 45A)

Also Available in Remanufactured

$399.66

DS-3939029

ALTERNATOR - 34SI (24V, 100A)

Also Available in Remanufactured

$810.06

DS-3972735

ALTERNATOR - 24SI (24V, 70A)

$571.01

DS-4936879

ALTERNATOR - 24SI (24V, 70A)

Also Available in Remanufactured

$571.01

DS-4993343

ALTERNATOR - 24SI (24V, 70A)

Also Available in Remanufactured

$571.01

DS-5282841

ALTERNATOR - 24SI (24V, 70A)

Also Available in Remanufactured

$571.01

888.687.0539 (U.S.)|225.706.4858 (Int.)

Monday-Friday 7am-5pm CST
8784 S. Choctaw Dr. Baton Rouge, LA 70815
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Caterpillar® and all of the Caterpillar® engine models listed on this website are registered trademarks of Caterpillar, Inc. Cummins® and all of the Cummins® engine models listed on this website are registered trademarks of Cummins. Detroit Diesel® and all of the Detroit Diesel® engine models listed on this website are registered trademarks of Daimler AG. John Deere® and all of the John Deere® engine models listed on this website are registered trademarks of John Deere. Allison Transmission® and all of their transmission models listed on this website are registered trademarks of Allison Transmission®. Diesel Parts Direct is not an authorized dealer for Caterpillar, Cummins, Detroit Diesel, John Deere, or Allison Transmission. None of the parts beginning with "DS" or "R" are genuine Caterpillar, Cummins, Detroit Diesel, John Deere, or Allison Transmission items.

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