Driver Rear Brake Caliper To Hose: Banjo Bolt And Washer(s)?

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by pingd, Apr 26, 2020.

  1. pingd

    pingd Member

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    Could anyone assist with finding the part numbers for:
    2013 Prius Two Driver Side Rear Brake Caliper To Flexible Brake Hose: Banjo Bolt And Crush Washer(s)

    I'm ordering a new, genuine Toyota caliper assembly, but what I can't tell is whether it comes with the banjo bolt and crush washer(s):
    Genuine OEM Caliper Assembly Part# 47850-12151 Fits 2010-2015 Toyota: Up To 35% Off On Every Order And Guaranteed Fit When You Enter Your VIN | OEM Genuine Parts

    Even here, I can't find the banjo bolt or washer(s):

    REAR DISC BRAKE CALIPER & DUST COVER. 2013 Toyota Prius Two HYBRID | Toyota


    As a point of reference I decided against going aftermarket (Autozone/Duralast).
    However it DOES come with the banjo bolt and even the bracket (but NOT the crush washer(s)):
    Duralast Bracketed Brake Caliper 19-B6287

    LONGER BACKSTORY
    Doing rear brake pads and rotors on a 2013 Prius Two with 160k miles - first time.
    Went with aftermarket pads and coated rotors from RockAuto: POWER STOP CRK5871 (appx $160USD).
    Right rear pads were down to nothing, left were at 10%, slide pins barely functioning.
    Caliper mount bolts were very corroded - luckily a 15 mm socket and Kroil got them off (bolts that mount the caliper to the car (should be 14mm, but only 1 was!)).
    Putting it back together, the left caliper piston would not retract all the way - instead it kept spinning and spinning without progress (used this cool tool: OEMTOOLS 24693 2 and 3 Pin Brake Rewind Adapter Set).
    [Spun it back out and now it won't compress at all - even opened the bleeder screw.]
    So the caliper piston must be shot and needs to be replaced - going with a completely new rear brake caliper assembly.
    Is it one crush washer or two for the banjo bolt?
    What item can I use to plug the brake hose from leaking? Some say ear plugs? Wadded up rag? Chopstick?

    Thank you!
     
  2. Raytheeagle

    Raytheeagle Senior Member

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    @Mendel Leisk is the resident librarian;).

    He'll be along eventually with part numbers:).

    Good luck with your work and keep us posted(y).
     
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  3. ChapmanF

    ChapmanF Senior Member

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    Yes. ;)

    Both sides of the hose fitting get 'wash'ed. If you buy aftermarket, that's probably two washers. Toyota uses a nifty little thing that's a sort of handcuff shape, two washers connected by a link, so you just kind of fold it over the hose end and you're not trying to hold onto two separate washers and a hose and a bolt while you're assembling.

    You get new ones in the rebuild kit (04479A in the parts.toyota diagram you found). You can spot them, folded over, next to the bleeder caps in that drawing.

    I don't think that kit comes with replacement bolts. Usually just replacing the washer(s) will do the trick.

    I also don't remember for sure if they come with the caliper.
     
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  4. pingd

    pingd Member

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    FINAL UPDATE
    Due to time constraints, went with the AutoZone caliper + bracket + slide pins combo.
    It also came with 2 brass washers, the banjo bolt and a "Limited Lifetime Warranty" - a steal at $85USD (+$20 bonus rewards)(here's hoping it holds up!).
    When replacing the caliper, I just let the brake fluid drip out and worked as fast as possible, ~2 ozs I reckon.
    Still need to flush the brake fluid but I'll do that after breaking-in the pads later today.

    In addition to the excellent NAB videos, this one helped with the parking brake cable:

    And this one with the caliper:


    Thank You Chapman and Ray!
     
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  5. pjksr02

    pjksr02 Active Member

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    Nice work.

    To anyone following, when I needed a new caliper, I called my dealer and they said they don't stock them. The Toyota techs there use Brake Best calipers from O'Reilly.
     
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  6. Mendel Leisk

    Mendel Leisk Senior Member

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    I'd do the brake fluid first. Watch @NutzAboutBolts video (linked in pinned thread at top of this forum). Before reconnect 12 volt (assume it's disconnected) do press the brake pedal multiple times, try to seat the pads, reduce pedal travel. Some repair manual info attached.
     

    Attached Files:

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  7. pingd

    pingd Member

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    Thank you pjksr02 - good to know I haven't strayed too far using non-Toyota parts!
    And Sir Mendel, thank you again for reminding about the "pump brakes before connect 12V" and "do the brake fluid flush now"!
    About 30 miles driven and no problems so far.

    Flushed 36 oz of Walmart Super Tech DOT3 through the system (many think the same as Prestone) - using the cheap stuff so the pressure is on me to flush it every 2-3 years (instead of first time at 7 years!).
     
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