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110k belt replacement?

Discussion in '2.5 Gen TRD Pro (2014-2021)' started by Erick, Jun 19, 2023.

  1. Jun 19, 2023 at 11:22 PM
    #1
    Erick

    #1
    Erick [OP] New Member

    Joined:
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    #14357
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    First Name:
    Erick
    Thornton Colorado.
    Vehicle:
    Bronze 2016 SR5 TRD. CM cab.
    HID lights, Duratracs, Bilstein 5100's, 2" Spacer, Sumo springs.
    Hey everyone.

    I am trying to figure out what I need to replace my belt.

    I just realized that I was supposed to replace the belt at 60k??? I read that on another forum. I’m not sure.

    What all do I need?

    The belt only?
    Dayco Drive Rite 5080950DR Serpentine Belt

    Or the belt and the belt tensioner?
    Dayco Drive Rite 5080950DR Serpentine Belt

    $66 Dayco 89378 Belt Tensioner
    Dayco 89378 Belt Tensioner

    Or the belt, belt tensioner and a idler pulley?
    Dayco Drive Rite 5080950DR Serpentine Belt

    Dayco 89378 Belt Tensioner
    $59 Dayco 89502 Idler/Tensioner Pulley
    Dayco 89502 Idler/Tensioner Pulley
     
    Erick, Jun 19, 2023
    #1
  2. Jun 20, 2023 at 12:03 AM
    #2
    chugs

    #2
    chugs New Member

    Joined:
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    Ciao
    Central Cali
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    2007 Tundra Blue Streaker
    Check rockauto.com they sell all in one kits includes Belt tensioner and idler.
     
    Last edited: Jun 20, 2023
    chugs, Jun 20, 2023
    #2
    WILLINH and ColoradoTJ like this.
  3. Jun 20, 2023 at 3:15 AM
    #3
    Larly5000

    #3
    Larly5000 Local Scumbag

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    07 Crewmax
    Im at 225k miles.

    I replaced the belt at 100k and 200k. The belt still looked good(no fraying or cracked ribs)with 100k on it both times. Used OEM belt both times.

    Haven't replaced the idler or tensioner yet.
     
    Larly5000, Jun 20, 2023
    #3
  4. Jun 24, 2023 at 9:25 AM
    #4
    yakeng

    #4
    yakeng 3URFE Apologist

    Joined:
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    2020 Tundra 4x4; 2014 Sequoia;
    ECGS Bushing; GCS Cooler RASHD; Fox 2.0
    I had to replace the tensioner assembly at 78K because it was making a squeaking noise, but to my surprise, the belt was in pretty good condition. OEM is Dayco. Here was the part number from mine. Not sure if the TRD Pro uses a different one, this is from a Limited.

    I would not replace the tensioner unless I had reason to believe it was going bad.

    Edit: looks like the part number is superseded by 16620-0S012, so 012 vs 011.

    3B37B4E3-2EE0-40F9-8C51-E7784AF340B8.jpg
     
    Last edited: Jun 24, 2023
    yakeng, Jun 24, 2023
    #4
    chugs and WILLINH like this.
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Products Discussed in

Dayco 89502 Idler/Tensioner Pulley
$58.51
Dayco 89378 Belt Tensioner
$65.76
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