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What in the hell Denso K16R-U for 1st Gen?

Discussion in '1st Gen. Tacomas (1995-2004)' started by 1996_2.4, Dec 29, 2023.

  1. Dec 29, 2023 at 2:25 PM
    #1
    1996_2.4

    1996_2.4 [OP] Well-Known Member

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    This is some shit. The Damn Denso website told me to use K16R-U spark plugs, and so I put them in my 1996 2.4.

    Two years later I go to NAPA to buy new ones and the guy at the counter says "those are not listed for my vehicle." I did not believe him and I looked at the screen myself. It showed one NGK platinum, and two Densos, a platinum and a double platinum.

    Too add to the confusion, the NGKs are a couple of millimeters taller than the Denso, and the NGK are gapped at .032, and Densos are gapped at .040.

    Why are there all these damn diff plugs? I don't want platinum, or iridium, I just want the same stock copper plug the car came with.

    Can anyone tell.me if the Denso K16R-16 is the stock replacement? Not, "Yeah, that'll work." I just want the bare bones stock replacement spark plug the car came with.

    IMG_20231229_141738073.jpg
     
    Last edited: Dec 29, 2023
  2. Dec 29, 2023 at 2:36 PM
    #2
    Andy01DblCabTacoma

    Andy01DblCabTacoma Well-Known Member

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    San Diego, CA
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    F: Kings SPC, R: 5100s+J59s. Custom armor.
    From the owners manual:
    upload_2023-12-29_14-36-40.png
     
  3. Dec 29, 2023 at 5:23 PM
    #3
    1996_2.4

    1996_2.4 [OP] Well-Known Member

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  4. Dec 30, 2023 at 10:15 AM
    #4
    Nessal

    Nessal Well-Known Member

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    The gap is different. The suffix which is #4 is smaller than a #11 designating a smaller gap.
     
    1996_2.4[QUOTED][OP] likes this.
  5. Dec 30, 2023 at 10:17 AM
    #5
    1996_2.4

    1996_2.4 [OP] Well-Known Member

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    Thanks, I just couldn't understand why the plugs are different numbers. That makes sense
     
  6. Dec 30, 2023 at 10:20 AM
    #6
    Nessal

    Nessal Well-Known Member

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    You can regap the copper plugs but I would personally just buy the correctly pregapped ones. I measure them out of the box when I go to the parts store before buying. In all of my years, I think I have only experience once when the gap was off.
     
  7. Dec 31, 2023 at 9:55 AM
    #7
    treyus30

    treyus30 cntl-y

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    Mesa / AJ, AZ
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    Two spooly snails, Haltech 2500, 35s, 125kmi, raptor lined
    Always check the gap. Do not trust "pre-gapped". It's like saying water is pre-wet... It has to be...
     
    Last edited: Dec 31, 2023

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