Spark Plug Non-Foulers - 14mm Gasket Seat Long Reach
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Dorman - Help Spark Plug Non-Foulers - 14mm Gasket Seat Long Reach

Part No. 42004 Warranty Details  
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We offer a variety of Spark Plug Non-Foulers for a range of applications. All our Non-Foulers are constructed of high-quality steel for long-lasting durability.

Product Features:
  • Corrosion-resistant design
  • Gaskets included (where applicable)
  • Available in a range of sizes
  • Non-Foulers help protect spark plugs from damage
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by PowerReviews
Dorman - HelpSpark Plug Non-Foulers - 14mm Gasket Seat Long Reach

(based on 1 review)

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Reviewed by 1 customer

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(6 of 6 customers found this review helpful)


Another useless auto product


from Raleigh, NC

Comments about Dorman - Help Spark Plug Non-Foulers - 14mm Gasket Seat Long Reach:

I have a 1996 Mazda Protege with 150,000 miles. I replaced the plug wires and plugs. I noticed a cylinder with oil in it so I purchased the non-fouler thinking I would use it until I had a chance to make the correct repair. After driving about 3 miles the porcelain part of the plug blew out leaving the plug base in the non-fouler. This happened 2 more times with about 8 miles being the greatest distance driven before it happened. I removed the non-fouler and have been driving the car since with the occasional fouled plug.

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Ask a question, get answers from real customers and in-house experts. For further assistance, please review your support options on our Contact Us page.

2 Questions | 2 Answers
Displaying questions 1-2
  • Q:

    does this go in the head & plug goes into it?
    Asked on 4/1/2011 by all B-body MOPARS from blackstone ma

    1 answer

    • A:

      Exactly. It extends the plug distance from the oil, so it won't foul out and not fire.

      Answered on 5/1/2011 by PUCER from West Chester, PA
  • Q:

    what exactly does the non fouler do?
    Asked on 2/7/2010 by josh from wi

    1 answer

    • A:

      you can use it if you remove the cat on your truck. put it on the end of the 02 sensor so it doesnt throw a code and run rich

      Answered on 3/9/2010 by Tyler from South beloit, IL
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