Laser Platinum Spark Plug
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NGK Laser Platinum Spark Plug

Part No. 5146 Warranty Details  

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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 enhanced plug service life
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Electrode Core Material:Platinum
Electrode Tip Material:Platinum
Ground Strap Quantity:1
Manufacturer Heat Range:4
Shorty Spark Plug:No
Spark Plug Reach:0.708 in
Spark Plug Seat Type:tapered
Spark Plug Thread Size:14 mm
Tip Configuration:Solid
Type:Laser Platinum
Wrench Diameter:5/8 in

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1 Question | 1 Answer
Displaying question 1
  • Q:

    my car sounds like a motorcycle but is this spark plug really matter.
    Asked on 4/4/2013 by tootoo

    1 answer



      Generally sound occurs in a car by Spark Plug due to when part of the air-fuel mixture in the combustion chamber away from the spark plug is spontaneously ignited by the pressure from a flame front originating from the spark plug. The two colliding flame fronts contribute to the “knocking” sound. Knock occurs more frequently when using low octane fuel. Low octane fuel has a low resistance to knock (low resistance to ignition). Knock is related to ignition timing. (Knock is sometimes referred to as “Spark-knock”.). Retarding the ignition timing will reduce knock. In order to assist you further about NGK Laser Platinum Spark Plug (Part No. 5146), please provide the year, make, model and engine size of your vehicle application or you can contact us directly at 1-877-ADVANCE (238-2623) or visit your nearest Advance Auto Parts store for further assistance.

      Answered on 4/4/2013 by Morgan from AAP
Displaying question 1

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