Platinum Spark Plug
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Platinum Spark Plug
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Autolite Platinum Spark Plug

Part No. AP3924 Warranty Details  

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Autolite Platinum Spark Plugs provide a center wire platinum firing tip for improved performance.

Product Features:
  • Super conductive Yttrium enhanced ground electrode provides superior heat transfer
  • Full platinum tip assures virtually no gap erosion for longer plug life
  • Leak proof, heat fused resistor for durability
  • 4 year limited warranty
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Electrode Tip Material:Platinum
Reach:3/4 in
Resistor:Suppressor
Seat Type:Gasket
Thread Diameter:14 mm
Tip Configuration:Power
Wrench Diameter:5/8 in

REVIEW SNAPSHOT®

by PowerReviews
AutolitePlatinum Spark Plug
 
3.6

(based on 5 reviews)

Ratings Distribution

  • 5 Stars

     

    (1)

  • 4 Stars

     

    (2)

  • 3 Stars

     

    (1)

  • 2 Stars

     

    (1)

  • 1 Stars

     

    (0)

80%

of respondents would recommend this to a friend.

Pros

  • Easy to install (3)

Cons

No Cons

Best Uses

No Best Uses

Reviewed by 5 customers

Displaying reviews 1-5

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4.0

Gets the job done

By 

from Archer City TX

Verified Buyer

Comments about Autolite Platinum Spark Plug:

Got the job done

  • Was this a gift?:
  • No

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4.0

Excellent plugs

By 

from Fayetteville NC

Verified Buyer

Comments about Autolite Platinum Spark Plug:

Good every day use.

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(3 of 3 customers found this review helpful)

 
5.0

Superior Quality to Champion

By 

from Newton, MA

About Me Auto Enthusiast, Casual Driver, Mechanic

See all my reviews

Verified Buyer
3 or more reviews submitted

Pros

  • Durable
  • Easy To Install
  • Improves Engine Efficiency
  • Quality

Cons

    Best Uses

    • Replacement
    • Small engines

    Comments about Autolite Platinum Spark Plug:

    Much better, economical alternative to RC12YC, especially in small engines.

    Comment on this reviewHelp Icon

    (3 of 7 customers found this review helpful)

     
    2.0

    You get what you pay for

    By 

    from Lancaster Pa.

    About Me Auto Enthusiast, Casual Driver, Competitive Driver, Mechanic

    Pros

    • Easy To Install

    Cons

    • Decreases Power
    • Longer Cold Start
    • No Improvement In Performance

    Best Uses

    • Everyday Driving

    Comments about Autolite Platinum Spark Plug:

    IMHO i don't like this brand as many others don't, but if your in a bind and don't have alot of money they will do for a few months until you gather up some funds and get a more expensive better name brand spark plug. The price is cheap for a reason, not saying the most expensive spark plug is the best one either because the best spark plug is the same spark plug your car was manufactured with and with Hyundai most have a NGK plug in it from the factory. Depends on ur car if its copper, platinum or whatever and thats the plug that should be installed for best results. A-men LoL

    Comment on this reviewHelp Icon

    (6 of 6 customers found this review helpful)

     
    3.0

    Autolite plugs

    By 

    from Miami,FL.

    Verified Buyer
    Helpful Reviewer

    Pros

    • Easy To Install
    • Still testingruns cooler

    Cons

    • No Improvement In Performance

    Best Uses

    • Everyday Driving

    Comments about Autolite Platinum Spark Plug:

    Still testing,but runs cooler.

    • Car & Truck:
    • Mechanic

    Comment on this reviewHelp Icon

    Displaying reviews 1-5

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    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.

    2 Questions | 3 Answers
    Displaying questions 1-2
    • Q:

      What is the gap on these plugs.I have a high performance engine.
      Asked on 7/14/2015 by none from Norcross,Georgia

      1 answer

      • CUSTOMER CARE

        A:

        I'm glad to answer you! This Autolite Single Platinum Spark Plug - Part No. AP3924 is pre-gaped at 0.044 inch from factory. But, the gap must be adjusted for the vehicle that the spark plug is intended for. Those with modified engines must remember that a modified engine with higher compression or forced induction will typically require a smaller gap settings.

        Answered on 7/14/2015 by Solomon
    • Q:

      HOW MANY SHOULD I BUY FOR A TUNE UP?
      Asked on 2/28/2011 by Anonymous

      2 answers

      • CUSTOMER CARE

        A:

        Each Cylinder requires a single spark plug.

        Answered on 3/11/2011 by Parts Guru Geo from AAP
      • A:

        16

        Answered on 5/9/2012 by Joel from Grand Rapids, MI
    Displaying questions 1-2

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