Gonna Get a new Coil Pack...what Plugs should I get? - Ranger-Forums - The Ultimate Ford Ranger Resource


4.0L OHV & SOHC V6 Tech General discussion of 4.0L OHV and SOHC V6 Ford Ranger engines.

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  #1  
Old 07-08-2008
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Gonna Get a new Coil Pack...what Plugs should I get?

Im gonna go ahead and give the Underdog Performance coil pack a try and I wanna go ahead and replace the plugs at the same time since I will be re gapping them anyways. What spark plugs do ya'll recommend? I remember hearin about NGK plugs once but usually what I have heard is motorcraft are the best.
Tell me what to get!
Thanks :)
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Old 07-08-2008
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I've run NGK, wasn't all that impressed, went back to Motorcraft. With a hotter ignition coil from what I understand copper core plugs are good for slightly better performance, but they only last about 30k miles.
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Old 07-08-2008
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Motorcraft FTW, I tried others they are not near as good as Motorcraft/Autolite Plugs.
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Old 07-08-2008
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Thanks Ya'll!! What do you think Zach..just the direct replacement? I was searchin and saw something about some fine wire ones or something
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Old 07-08-2008
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I've heard that the Motorcraft ones are the best for our application.
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Old 07-08-2008
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Quote:
Originally Posted by vansnxtweek View Post
Thanks Ya'll!! What do you think Zach..just the direct replacement? I was searchin and saw something about some fine wire ones or something
Direct replacement, Wayne sells them and you can get them at Wal-Mart
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Old 07-08-2008
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Alrighty sounds great thanks for all the help everybody
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Old 07-16-2008
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get Bausch platinum +4's they are awsome
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Old 08-11-2008
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get Bausch platinum +4's they are awsome
x2

I've been running these forever and they work great.
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  #10  
Old 08-11-2008
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The latest Motorcraft platinum plugs are called "Fine Wire" platinums.
Stay with these!
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Old 08-11-2008
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I just got baush platinum 2s installed and there awesome
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Old 08-11-2008
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lol get the fours they are the best ones they offer in the bausch plat. series

Last edited by Alex98; 08-11-2008 at 09:03 PM.
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  #13  
Old 08-12-2008
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I am going to game the NGK iridiums we will see how they roll me
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Old 08-12-2008
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idk i like motorcraft...
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  #15  
Old 08-12-2008
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idk i like motorcraft...


Motorcraft plugs FTMFW!!!
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Old 08-13-2008
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Just one thing to notice. I picked a 2006 Ranger for this (for Rich's benefit), but if you look at the recommended plug from Bosch, NGK, or Denso, they recommend the SAME plug for the 2.3L, 3.0L, and 4.0L. Only Motorcraft recommends a
different P/N for the 2.3L, 3.0L, and 4.0L:
SP439 for 2.3L, SP432 for 3.0L, and SP412 for 4.0L

So, the heat range is optimized for each engine with Motorcraft, NOT the
aftermarket plugs!

I'm of the opinion "close enough" only counts in horseshoes and hand grenades, NOT spark plugs!!
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  #17  
Old 08-13-2008
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Quote:
Originally Posted by Takeda View Post
Just one thing to notice. I picked a 2006 Ranger for this (for Rich's benefit), but if you look at the recommended plug from Bosch, NGK, or Denso, they recommend the SAME plug for the 2.3L, 3.0L, and 4.0L. Only Motorcraft recommends a
different P/N for the 2.3L, 3.0L, and 4.0L:
SP439 for 2.3L, SP432 for 3.0L, and SP412 for 4.0L

So, the heat range is optimized for each engine with Motorcraft, NOT the
aftermarket plugs!

I'm of the opinion "close enough" only counts in horseshoes and hand grenades, NOT spark plugs!!

That is a really good point I never noticed that before. Thanks man
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  #18  
Old 08-13-2008
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Quote:
Originally Posted by Takeda View Post
Just one thing to notice. I picked a 2006 Ranger for this (for Rich's benefit), but if you look at the recommended plug from Bosch, NGK, or Denso, they recommend the SAME plug for the 2.3L, 3.0L, and 4.0L. Only Motorcraft recommends a
different P/N for the 2.3L, 3.0L, and 4.0L:
SP439 for 2.3L, SP432 for 3.0L, and SP412 for 4.0L

So, the heat range is optimized for each engine with Motorcraft, NOT the
aftermarket plugs!

I'm of the opinion "close enough" only counts in horseshoes and hand grenades, NOT spark plugs!!


That is actually a really good comparison there, shows they have just the right temps needed for what you need them for.. as opposed to having a 'generic' do it all for it.
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