Brake Booster Assembly - Part compatibility

Discussion in 'Gen 3 Prius Technical Discussion' started by BrendonG, Mar 3, 2025.

  1. BrendonG

    BrendonG Junior Member

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    2009 Prius
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    i-Tech
    Hi all, Ive been back through all the old threads but couldn't find an answer to my question (maybe noone knows still)

    My 2009 Gen 3 Prius is getting the hissing noise around the brake pedal, and the pump is running every 10 seconds. I understand the issue is likely in the booster assembly so I'm going to replace just that first.

    The issue is I'm in Australia and wrecker parts are rare enough as it is, without having to find one that's the exact year. I've managed to dig up the below info here which indicates I need,

    upload_2025-3-4_11-40-29.png
    • Part number 47050-47130 (substitute)
    • Mark number 47210-47200
    The closest part I can find (which is still nearly $1,000 used btw) is,
    • Part number 47050-47130
    • Mark number 47210-47300
    Would it seem safe to assume the original part number (47050-47050) has been substituted with a new one that appears to be the same as the 07.2010 - 12.2011 model?

    The mark numbers are slightly different but it may just be the same part? Even when adding both the above highlighted items to cart, they appear in the cart as 2 of the same product.

    Any insight would be greatly appreciated, I've spent way too much time on this already :(
     
  2. MAX2

    MAX2 Active Member

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    The catalogs indicate the year of manufacture of the part and the period of time when the part was installed.

    When the part is improved, the number changes.

    It is possible to replace parts.
     
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  3. Madmommymelinda

    Madmommymelinda Junior Member

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    Plug-in Base
    Hey Brendon, sorry to hear about your luck mate. I've replaced mine in the past 4 months and unfortunately have to replace it again. Evidently I installed a bad one or something. It takes on air within 2 to 4 weeks after bleeding. Anyway, I'm curious as to why you can't seem to find one used cheaper than that. I have one in route, used, that I paid approx $340 for, on Ebay.
     
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  4. BrendonG

    BrendonG Junior Member

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    Nov 25, 2019
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    2009 Prius
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    i-Tech
    Could you please post a link? Also what year model is yours?

    Thanks!
     
  5. Mendel Leisk

    Mendel Leisk Senior Member

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