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[ Solved ] Alternator factory volt specs 2006 4.7 iforce ..

Discussion in '1st Gen Tundras (2000-2006)' started by SteveMAR, Aug 11, 2025.

  1. Aug 11, 2025 at 4:52 PM
    #1
    SteveMAR

    SteveMAR [OP] New Member

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    .. Anyone have factory specs as titled ?

    Seems I have a similar situation our Honda just went through with a sllooww dying alternator, in which I have experienced many of times over many of autos I have fixed.

    I do know the alternator is a Denso, or Bosch, I can not remember LOL, ANY WAYS ..

    What is the factory spec for the double cab 4.7 iforce alternator specifications ?

    Can I rebuild it myself , yes I can, where to get the Toyota parts ?

    Thanks, Steve
     
  2. Aug 11, 2025 at 6:04 PM
    #2
    bfunke

    bfunke Tundra Curmudgeon

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    Denso only! It depends on your VIN but here are the choices. Look up you vehicle specifications

    upload_2025-8-11_21-3-48.png
     
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  3. Aug 11, 2025 at 6:12 PM
    #3
    shifty`

    shifty` Earth acid cleanses me, cleanses me clean

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    If Denso wasn't avaialble - they've been out of stock a lot - I'd be cool with Bosch.

    Don't buy anything less than 130A for your truck.
     
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  4. Aug 12, 2025 at 3:54 AM
    #4
    BubbaW

    BubbaW Blessed 2 B above Ground

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    If you're speaking of regulated voltage output of the generator/alternator, it's basically no difference than any other alternator regulated output voltage....13.2 to 14.8 V for 2UZ/V8

    That info is in the Specification section of the 05-06 FSM if you still have it.

    05 Alt Specs.jpg
     
  5. Aug 20, 2025 at 2:35 PM
    #5
    SteveMAR

    SteveMAR [OP] New Member

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    I re installed my OS in my main desktop PC and forgot to copy over my Downloads folder and so I did not have it that time, I re downloaded it and it is now saved in a safe place :).

    The alternator is 13.5x at idle and about 13.8x at 2000 RPM, good enough for me, Thanks.
     

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