Spark Plug Non-Foulers - 18mm Tapered Seat
Hover over the image to zoom in
Spark Plug Non-Foulers - 18mm Tapered Seat
Share this:

Dorman - Help Spark Plug Non-Foulers - 18mm Tapered Seat

Part No. 42002 Warranty Details  

See if this part fits a specific vehicle.

Check Vehicle Fit

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
Back To Top
Seat Type:Tapered
Thread Diameter:18 mm

Do you have questions about this product?


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.

3 Questions | 4 Answers
Displaying questions 1-3
  • Q:

    is for one or a pair
    Asked on 9/3/2012 by mike from vermont

    2 answers



      This part Dorman - Help Spark Plug Non-Foulers - 18mm Tapered Seat, Part No. 42002 is sold individually.
      For compatibility of this part with your vehicle, please provide your vehicle make, model and engine specification.
      For any further assistance, please feel free to call us at 1-877-238-2623 or visit your nearest Advance Auto Parts store and our representatives would be more than happy to assist you.

      Answered on 9/3/2012 by Aaron from AAP
    • A:

      One package contains two non-foulers.

      Answered on 5/4/2013 by Cheese from Richmond, VA
  • Q:

    can you use these if you accidentaly cross thread a spark plug as well?
    Asked on 1/7/2011 by slocav from irvine ky

    1 answer



      No, that is not what this product is for.

      Answered on 1/11/2011 by Ron the Auto Parts Rebel from AAP
  • Q:

    What is it and what does it do?
    Asked on 8/9/2010 by Anonymous

    1 answer



      It is a device that screws onto the sparkplug be for you screw it into the sparkplug hole.
      It has a small hole in it which allows the gas Vapor to enter this hole but keeps oil out. When the plug fires it ignites the gas vapor and the engine works. But it keeps oil from splashing on the plug and fouling it.

      Answered on 8/9/2010 by Mike from AAP
Displaying questions 1-3

Do you have a question about this product? 

Check out the specials in our monthly flyer.
Disclaimer We strive to keep all information accurate and up-to-date; however, product availability, pricing, promotions and store hours are subject to change without notice. Please contact Customer Care if you have any questions or corrections.