Laser Platinum Spark Plug (PFR7H-10)
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Laser Platinum Spark Plug (PFR7H-10)
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NGK Laser Platinum Spark Plug (PFR7H-10)

Part No. 3978 Warranty Details  

Fit of this part varies by vehicle & equipment specs Type of Fit

OE-style long-life spark plug; laser-welded platinum ground and center electrodes; requires less voltage; features increased anti-fouling characteristics; enhanced acceleration; designed for high fuel efficiency and lower emissions.

Product Features:
  • Recommended for modern vehicles using distributorless ignition systems (DIS) for maximum plug service life
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Electrode Core Material:Platinum
Electrode Tip Material:Platinum
Ground Strap Quantity:1
Manufacturer Heat Range:7
Reach:3/4 in
Seat Type:gasket
Shorty Spark Plug:No
Thread Diameter:14 mm
Tip Configuration:Solid
Type:Laser Platinum
Wrench Diameter:5/8 in

Do you have questions about this product?


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

    is this product pre-gapped?
    Asked on 12/30/2012 by jaimoto from tampa fl

    1 answer



      With reference to your query on NGK Laser Platinum Spark Plug (PFR7H-10) - (Part No. 3978), a spark plug part number might fit hundreds of different engines from many different manufacturers. Although the spark plug from factory will come with a gap to a pre-selected setting, this may not be the right gap for your particular engine. The incorrect plug gap for your engine can contribute to a high rate of misfires, loss of power, plug fouling, poor fuel economy, and accelerated plug wear. It is always best to check the gap against the manufacturer's specifications. For compatibility, 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 the nearest Advance Auto store and one of our representatives will gladly assist you with any questions or concerns you may have.

      Answered on 12/31/2012 by Aaron from AAP
  • Q:

    What is the recommended gap setting on these? I have a 2007 Audi a3 2.0 turbo.
    Asked on 12/10/2012 by gil from Nashville TN

    1 answer



      With reference to this NGK Laser Platinum Spark Plug (PFR7H-10) - part# 3978, the stock spark plug gap for your Audi A3 2.0t should be 0.032" and if you are chipped, you should run 0.028". For any further assistance, please visit your nearest Advance Auto store or call us directly at 1-877-ADVANCE (238-2623) and one of our representatives there would be more than happy to assist you.

      Answered on 12/11/2012 by Vincent from AAP
Displaying questions 1-2

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