The alternator type you have selected is the Bosch type T1 design

Please review the alternators presented below and then select the proper application for your vehicle's engine.

DATA BOX

In order to make the exact choice, please be sure to answer the following questions about your application:

  1. Your vehicle system must be 24V.
  2. Review the mounting hole configurations for the proper fit (view the alternator from the pulley side to do this).
  3. All of our T1 units are rated at 140amps, so replacing one rated at 120amps is absolutely OK.
  4. It is OK to reuse the plastic cover on the rear of the replaced alternator.  Our units are designed to accept all other makes of plastic terminal covers.
  5. All of our T1 units come equipped with the regulator set at 28.5 volts.

    6.  
Alternator
Type		 System
Voltage		 Output Top Front
Mounting Hole		 Bottom Front
Mounting Hole 		OE
Interchanges		 Part Number
Bosch T1 24 140A Threaded
top left		 Not threaded 0 120 689 552, 566,
1277680, 1A0906, 1A1096		 T1-24140-41
Bosch T1 24 140A Threaded
top left		 Threaded 0 120 689 503, 508, 512, 513, 515,
532, 571, 1277640, 1A0895, 1A1104		 T1-24140-45
Bosch T1 24 140A Threaded
top right		 Threaded 0 120 689 504, 507, 517, 522, 527,
540, 541, 569, 1277720, 1A1001, 1A1103		 T1-24140-50

If you care to double check your selection using an OEM number, please enter it. Our program will also allow you to make a search with partial numbers, as long as you enter any four of the numbers or letters in a row.

Search Our Store by OEM# or Keyword

The OEM match will take you to our exact replacement for your unit.

If you are still not sure of the selection, please call
888-598-8105
and a technician will immediately assist you!

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