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Coolant Lines to REAR Heater core

Discussion in '3rd Gen 4Runners (1996-2002)' started by dankeiley, Jun 29, 2018.

  1. Jun 29, 2018 at 9:09 AM
    #1
    dankeiley

    dankeiley [OP] New Member

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    Was fixing something else Wednesday and noticed the lines to the passenger compartment heater were badly rotted. Pulled em, they broke as I was pulling them, have it bypassed right now.

    5/16 SAE SEA30 R7 soft hose looks like it could work, found a example on google of this repair.

    Dorman sells a replacement hard line kit like the OEM lines for about $70

    Anyone repaired these lines before and have insight?

    4Runner Rear heater hoses.jpg
    IMG_5051.jpg
     
  2. Jun 29, 2018 at 2:44 PM
    #2
    dankeiley

    dankeiley [OP] New Member

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    I should say the lines are to the rear seat heater. Run down the firewall, along the frame, then up to the heater core for the back seat.
     
  3. Mar 22, 2021 at 5:51 PM
    #3
    Rik27th

    Rik27th New Member

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    Sent a pm with a question, but just in case I was wondering if you are aware of a part number for these two lines. I have a 2000 toyota 4runner limited and these lines burst. I've googled, rear heater coolant lines, rear passenger heater coolant lines. I can't find anything that matches exactly to be able to replace these lines. Any info would be helpful. Thanks!
     
  4. Mar 23, 2021 at 10:22 AM
    #4
    negusm

    negusm New Member

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    Go to partsouq.com. Put in your vin. Use the mouseable diagrams to find the part. It may take you a while as some parts are in odd sections sometimes. I have never failed to find a part I've really needed there.

    Also...the parts desk at your local dealer will find it for you too.
     
  5. Mar 24, 2021 at 10:54 PM
    #5
    CDN Cowboy

    CDN Cowboy 2km on the car lot, Oct 2020

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    100 Mile House, BC
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    Just a bit of road grime so far.
    Soft copper works and it won’t rust.
     
  6. Mar 25, 2021 at 7:40 AM
    #6
    Rik27th

    Rik27th New Member

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    thanks I’m going to check this website out and also give the dealer a shot.
     
  7. Mar 26, 2021 at 6:59 PM
    #7
    Trekker

    Trekker Regular Member

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    I don't think Dorman has a great reputation for quality. Same with Moog, avoid them they aren't good
     

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