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2012 spark plug & serpentine belt change out

Discussion in '4 Cylinder' started by wags, Aug 21, 2020.

  1. Aug 21, 2020 at 4:45 PM
    #1
    wags

    #1
    wags [OP] Well-Known Member

    Joined:
    Sep 12, 2011
    Member:
    #63349
    Messages:
    269
    Gender:
    Male
    Walleye Capital of the World, Ohio
    Vehicle:
    2012 2.7L 5-Speed Manual SR5 4x4
    Today I changed out my spark plugs and serpentine belt on my 2012 Tacoma 2.7L 4x4 5-speed MT SR5 (98,382 mi). Both spark plugs and serpentine belt were original. Original plugs were starting to look a little ragged and gap was easily over .045! Coils looked great. Serpentine belt was really a waste of time and money I believe since it looked great once I took it off. Piece of mind I guess since I travel to secluded hunting areas away from home in winter time.

    I used Denso Part No. 3421 (
    $57 SK20HR11 ---- IRIDIUM PLATINUM power pack Spark Plugs -- # 3421 ----- 6 PCS NEW
    SK20HR11) spark plugs & a Bando serpentine belt. Both purchased through NAPA online. I would like to thank the authors of the stickies above for the guidance on changing out these parts. I was completed in under 2hrs (and I took my time) for both items. So thanks to the 4 cylinder forums!
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    wags, Aug 21, 2020
    #1
    dawgn86, Hardscrabble and BassAckwards like this.
  2. Aug 23, 2020 at 3:23 AM
    #2
    Hardscrabble

    #2
    Hardscrabble Well-Known Member

    Joined:
    Feb 9, 2011
    Member:
    #50838
    Messages:
    3,382
    Gender:
    Male
    First Name:
    Scott
    McDonough, GA
    Vehicle:
    ‘20 Sport M/T AC 4WD & '15 TRDOR DCSB 4WD
    A little of this and a little of that.
    Nice job!
     
    Hardscrabble, Aug 23, 2020
    #2
  3. Aug 23, 2020 at 11:53 AM
    #3
    BillsSR5

    #3
    BillsSR5 Looking out for #1

    Joined:
    Apr 12, 2017
    Member:
    #216032
    Messages:
    8,654
    First Name:
    bill
    Vehicle:
    2014 SR5
    I pulled my plugs at 110k miles they looked like a re gap and another 100k miles to go
     
    BillsSR5, Aug 23, 2020
    #3
    wags[OP] likes this.
  4. Aug 24, 2020 at 4:37 AM
    #4
    sgtnewundies

    #4
    sgtnewundies Well-Known Member

    Joined:
    Apr 2, 2014
    Member:
    #126843
    Messages:
    649
    Gender:
    Male
    First Name:
    Eric
    Florida, Citrus County
    Vehicle:
    14 trd sport red
    Working on it now....UNDER CONSTRUCTION
    The coils should last a long time. I have 223,000 on my coils. The Lazer Iridium plugs are a 100,000 mile replacement, the regular Iridium are 50,000. The belts harden with age so 100,000 miles is a good time to change them.
     
    sgtnewundies, Aug 24, 2020
    #4

Products Discussed in

DENSO ---SK20HR11---- IRIDIUM PLATINUM power pack Spark Plugs -- # 3421 ----- 6 PCS NEW
$56.76
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