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  1. #1
    Rick's Avatar
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    Spark plugs NGK 4339

    my 07 RXT has 50 hrs. I think its time for plug change. Any advice. I think stock is NGK 4339. $10 a plug at dealer--- surprise. Saw on line for $3. Is there an upgrade or better MFG


  2. #2
    Fastest in my cove sfackett0's Avatar
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    I use the stock plug in my ski and it works fine. Go to a local auto parts store with the NGK number and buy/order from them. Way cheaper than the dealer.

  3. #3
    Nothin' better than Doo'in it! BigDaddyRXP's Avatar
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    As far as a standard plug... you can't beat NGK

    I'm currently trying out the Denso iridium plugs... but damn there expensive


  4. #4

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    U r correct rick stock plug # is 4339. I buy them 9 to 12 at a time at advance auto parts. 2.98 each.todd

  5. #5
    I run the stock plugs from Avanced auto parts.I've fouled both and the iriduim's are to much to do that.

  6. #6
    Site Admin Green Hulk's Avatar
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    Glad to hear advanced carries them. I'll bet there tomorrow to pick some up

  7. #7
    Quote Originally Posted by bigdaddyRXP View Post
    As far as a standard plug... you can't beat NGK

    I'm currently trying out the Denso iridium plugs... but damn there expensive


    Don't get me wrong the iriduims are good but if you foul them it cost $.

  8. #8
    Prohibido usuario
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    Quote Originally Posted by Green Hulk View Post
    Glad to hear advanced carries them. I'll bet there tomorrow to pick some up
    I thought you were Iridium only?

  9. #9
    Site Admin Green Hulk's Avatar
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    Quote Originally Posted by mitch411RXP View Post
    Don't get me wrong the iriduims are good but if you foul them it cost $.
    Exactly why i use the el cheapo's when I'm tuning. Once i get it dialed in i swap to the iridiums. I fouled out one too many iridiums and learned the hard way. $12.95 each times 3 gets expensive quick

  10. #10
    Site Admin Green Hulk's Avatar
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    Quote Originally Posted by NCHeel View Post
    I thought you were Iridium only?
    see above post

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