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  1. #1
    scorp's Avatar
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    Bought Voltage regulator - But got different number?

    Hey All,

    (Marto) was selling a 4060302 LR31-2 on ebay for a reasonable price(believe it or not) so I bought it as a spare. When it got here I received
    a 4060115 LR-23, is this the same? is there any difference in how the ski
    will perform? Should I send it back for refund?


    Thanks


  2. #2
    scorp's Avatar
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    BTW it for my 2000 slx -1200 carb

  3. #3
    Click avatar for tech links/info, donation request K447's Avatar
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    Arrow Are the LR-31 and LR-23 voltage regulators interchangeable?

    Quote Originally Posted by scorp View Post
    Hey All,

    (Marto) was selling a 4060302 LR31-2 on ebay for a reasonable price(believe it or not) so I bought it as a spare. When it got here I received
    a 4060115 LR-23, is this the same? is there any difference in how the ski
    will perform? Should I send it back for refund?


    Thanks
    I have never seen the actual electrical specifications for any of the Polaris LR voltage regulator modules.

    My understanding is that the LR-31 (and LR-31-1 and LR-31-2) is a newer design presumably with a higher current rating.

    The LR-31 is physically larger than the LR-23 module which leads me to think it was redesigned to handle higher charging amps or otherwise be more robust. This is entirely speculation on my part as I have not disassembled them and compared internals.

    The LR-23 should work in place of the LR-31, in terms of charging the battery and maintaining the correct battery voltage when the engine is running. I could not say whether or not it will last as long or be less reliable than the OEM LR-31 version.

    For reference, the LR-31 is 3 inches by 3 inches square, including the metal tab.
    The LR-23 is 2.5 inches square including the metal tab.
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