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Wrong plugs?

Discussion in 'Technical Chat' started by Alberto1405, Jul 31, 2017.

  1. Jul 31, 2017 at 7:52 AM
    #1
    Alberto1405

    #1
    Alberto1405 [OP] New Member

    Joined:
    Jul 13, 2017
    Member:
    #223977
    Messages:
    2
    Gender:
    Male
    First Name:
    Lance
    Vehicle:
    2005 Tacoma TRD
    Hello ,
    Changing my plugs for the first time, discovered previous owner had installed Autolite APP 3923 plugs. According to my factory book, the
    $6 NGK LFR6C-11 V-Power Spark Plug, Pack of 1
    NGK LFR6C-11 is the correct plug. What worries me is that the new NGK plugs have a much longer threaded end than the Autolite does. I knoe the NGK should be correct, any advice? I would hate for these new plugs to be too long and ding a piston. Thanks. Look forward to everyone's input
     
    Alberto1405, Jul 31, 2017
    #1
  2. Jul 31, 2017 at 9:28 AM
    #2
    winguyen

    #2
    winguyen Well-Known Member

    Joined:
    Jul 1, 2016
    Member:
    #191018
    Messages:
    533
    First Name:
    Kevin
    Watertown, MA
    Vehicle:
    2014 Pyrite-Mica DCSB TRD Off-Road
    I would trust the manual over what the previous owner decided was okay. You could always buy OEM plugs and you'll definitely be good.
     
    winguyen, Jul 31, 2017
    #2
    inwood customs likes this.
  3. Aug 10, 2017 at 5:21 PM
    #3
    igno1tus

    #3
    igno1tus Small member

    Joined:
    Apr 15, 2017
    Member:
    #216359
    Messages:
    1,816
    Lehigh Valley Area , PA
    Vehicle:
    '07 Tacoma Access Cab TRD Off Road
    If you have the correct plug , then you should be fine . Double check your numbers
     
    igno1tus, Aug 10, 2017
    #3

Products Discussed in

NGK (7787) LFR6C-11 V-Power Spark Plug, Pack of 1
$5.75
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