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2.7 serpentine belt tensioner question.

Discussion in '2nd Gen. Tacomas (2005-2015)' started by Vermonter900, Dec 23, 2019.

  1. Dec 23, 2019 at 9:12 AM
    #1
    Vermonter900

    Vermonter900 [OP] Member

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    I was going to buy the shorter serp belt to bypass my non functioning AC. Question is Rock Auto lists two idler pulleys, an upper and lower. I see no listing for a tensioner puller, just a complete tenisoner. Two questions, first do I have to even bother replacing the lower pulley as I see in the footnotes it says "with AC" and second is the upper pulley the same as the tensioner pulley or is it a different part number? Thank You!
     
  2. Dec 23, 2019 at 9:39 AM
    #2
    Muddinfun

    Muddinfun Well-Known Member

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  3. Dec 23, 2019 at 12:31 PM
    #3
    Vermonter900

    Vermonter900 [OP] Member

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    Unless I missed something that thread has the part number for the shorter belt, but I don't see where it mentions part numbers for the pulleys, and weather the tensioner pulley is the same part as the idler pulley.
     
  4. Dec 23, 2019 at 12:37 PM
    #4
    BillsSR5

    BillsSR5 Looking out for #1

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  5. Dec 23, 2019 at 1:07 PM
    #5
    Vermonter900

    Vermonter900 [OP] Member

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    Excellent, thank you for the information! In reading about the tensioner pulley it seems that on the 4.0 engines folks are buying a Nachi 5203-2NS bearing and just pressing a new bearing into the pulley to save buying the whole tensioner. Will that bearing work on the four cylider models? Does the four cylinder have the same tensioner pulley as a V6 I wonder?
     
  6. Dec 26, 2019 at 12:03 PM
    #6
    Steve_P

    Steve_P Well-Known Member

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    You do not have to buy the entire tensioner assembly for the 2.7L- you can buy only the tensioner pulley from Toyota. IIRC, it is a little hard to find in the parts manual though as the two idler pulleys are listed with the belt and the tensioner pulley is listed in with the timing cover or similar. But I'm 100% sure it's available as I bought all the pulleys from Toyota and not the tensioner. If you can't find it, just pick up the phone.
     
  7. Dec 26, 2019 at 12:10 PM
    #7
    BillsSR5

    BillsSR5 Looking out for #1

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    post #12 https://www.tacomaworld.com/threads/tensioner-pulley-failed.526023/
     
  8. Dec 26, 2019 at 12:12 PM
    #8
    BillsSR5

    BillsSR5 Looking out for #1

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  9. Dec 26, 2019 at 12:14 PM
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    Blue92

    Blue92 Well-Known Member

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    Could always pop the bearing out and bring it to a local industrial parts supply house. 90% of the time theres such a store near your local industrial/manufacturing district.
     
  10. Dec 30, 2019 at 12:25 PM
    #10
    Vermonter900

    Vermonter900 [OP] Member

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    So I have not had a chance to pull it apart yet, but called my local dealer. According to the guy at the parts counter the tensioner pulley is available separately of the tensioner assembly. The Toyota part number for the tensioner pulley is 16603-75010 and I had him match that part number using the last eight of the VIN so hopefully it'll be a good match. He quoted me $28 and change for the pulley, and it's a day away out of the Boston warehouse, so I had him order it and at some point I'll give it a try.

    I'm probably going to see if I can take the information I found online for the bearing cross reference and see if I can find just the bearing locally so I have a spare with the old pulley if I ever need it.

    Thank You for the input everyone!
     
    BillsSR5 likes this.
  11. Dec 30, 2019 at 1:18 PM
    #11
    BillsSR5

    BillsSR5 Looking out for #1

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    just a heads up the bolt on the 2.7l tensioner is a lefty loosey, NOT like the tensioner pulley v6 4.0 which is reverse threaded bolt righty loosey
     
    69L46Vert likes this.
  12. Dec 30, 2019 at 5:49 PM
    #12
    Vermonter900

    Vermonter900 [OP] Member

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    Thank You for the information.
     
    BillsSR5 likes this.

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