V-Power Spark Plug
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NGK V-Power Spark Plug

Part No. 3951 Warranty Details  

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V-grooved center electrode offers lower ignition system voltage, enhanced ignitability and fuel economy, lower emissions and increased anti-fouling characteristics.

Product Features:
  • 90-degree V-groove center electrode
  • Concave ground electrode
  • Design helps reduce quenching effect
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Electrode Core Material:nickel with V groove
Electrode Tip Material:nickel with V groove
Ground Strap Quantity:1
Manufacturer Heat Range:5
Resistor:Yes
Shorty Spark Plug:No
Spark Plug Reach:0.708 in
Spark Plug Seat Type:tapered
Spark Plug Thread Size:14 mm
Tip Configuration:Loose
Type:V-Power
Wrench Diameter:5/8 in

REVIEW SNAPSHOT®

by PowerReviews
NGKV-Power Spark Plug
 
4.7

(based on 48 reviews)

Ratings Distribution

  • 5 Stars

     

    (36)

  • 4 Stars

     

    (11)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (1)

  • 1 Stars

     

    (0)

98%

of respondents would recommend this to a friend.

Pros

  • Easy to install (30)
  • Improves engine efficiency (30)
  • Increases power (27)
  • Durable (18)
  • Lightweight (6)

Cons

No Cons

Best Uses

  • Everyday driving (38)
  • Replacement (27)
  • Performance driving (9)
  • Restoration (7)
    • Car & Truck:
    • Auto enthusiast (4), Casual driver (3), Mechanic (3)
    • Reviewer Profile:
    • Casual driver (23), Auto enthusiast (19), Mechanic (9), Truck enthusiast (8), Competitive driver (4)

Most Liked Positive Review

 

THE plug for GM 3800's

If you have a 3800 (GM motor), this is the plug to buy. These plugs give a smooth idle, good performance and gas mileage, and last 25,000+ miles.

If you have a 3800 (GM motor), this is the plug to buy. These plugs give a smooth idle, good performance and gas mileage, and last 25,000+ miles.

VS

Most Liked Negative Review

 

Don't go on judgement of product name

I am using this product as a replacement for eveyday driving notice very little engine efficiency but to soon to tell at this point. The ceramic insulator was cracked on one of the plugs.

I am using this product as a replacement for eveyday driving notice very little engine efficiency but to soon to tell at this point. The ceramic insulator was cracked on one of the plugs.

Reviewed by 48 customers

Displaying reviews 1-10

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5.0

Great

Profile Image

By 

from Tampa, FL

About Me Casual Driver, Truck Enthusiast

Verified Buyer
3 or more reviews submitted

Pros

  • Durable
  • Easy To Install
  • Improves Engine Efficiency
  • Increases Power
  • Lightweight

Cons

    Best Uses

    • Everyday Driving
    • Replacement

    Comments about NGK V-Power Spark Plug:

    Great replacement for my 2002 Chevy 4.3 V6. Had to adjust the gap to .06 but easy enough.

    Comment on this reviewHelp Icon(earn points)

     
    5.0

    Perfect

    By 

    from Weeki Wachee, FL

    About Me Mechanic

    Verified Buyer
    Level 3

    Pros

    • Durable
    • Great Value For The Money
    • Improves Engine Efficiency
    • Increases Power

    Cons

    • None

    Best Uses

      Comments about NGK V-Power Spark Plug:

      Great value for the money

      Comment on this reviewHelp Icon(earn points)

       
      5.0

      WORKS GREAT

      Profile Image

      By 

      from FAYETTEVILLE NC

      Verified Buyer
      3 or more reviews submitted

      Pros

      • Improves Engine Efficiency

      Cons

        Best Uses

        • Everyday Driving
        • Replacement

        Comments about NGK V-Power Spark Plug:

        JUST GOOD TO REPLACE AS ROUTINE MAINTENANCE EVERY 70,000 MILES OR SO....

        Comment on this reviewHelp Icon(earn points)

         
        5.0

        I would buy this product again and again

        By 

        from lakeland, fl

        Verified Buyer

        Comments about NGK V-Power Spark Plug:

        Tune up

        Comment on this reviewHelp Icon(earn points)

         
        5.0

        great plugs

        By 

        from Deltona ,Fla

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

        Verified Buyer
        3 or more reviews submitted

        Pros

        • Durable
        • Easy To Install
        • Improves Engine Efficiency
        • Increases Power
        • Lightweight

        Cons

          Best Uses

          • Everyday Driving
          • Performance Driving
          • Replacement
          • Restoration

          Comments about NGK V-Power Spark Plug:

          On my 1994 Ford ranger V6 these Plugs had been in for three years + do too pure laziness. As I pulled each plugged out and inspected them? Extraordinarily clean, like they had only been in maybe 30 days. I did not really have to change them out. But I did any ways.There a perfect replacement for when you cannot afford $6. platinum plugs. I was totally amazed how clean they actually were.I kid you not! As MY 1994 Ranger has over 350,000 miles on it. I have a set in my 1994 dodge worked van? V6 as well. So I'm curious on the shape those are in as well. As it has not been tuned up and over two years. It still runs perfectly smooth as well as a Ford ranger from the very first day of installing the parts.Even with all the crummy gas they sell today. The only thing I do different is gap the plugs 10k over recommended specifications.

          Comment on this reviewHelp Icon(earn points)

           
          5.0

          Good replacement

          By 

          from Va

          About Me Casual Driver

          Verified Buyer

          Pros

          • Easy To Install
          • Improves Engine Efficiency
          • Increases Power

          Cons

            Best Uses

            • Everyday Driving
            • Replacement

            Comments about NGK V-Power Spark Plug:

            Good low cost replacement plugs. Made a big difference

            Comment on this reviewHelp Icon(earn points)

             
            4.0

            Does exactly what it's intended to do.

            By 

            from Southwest Florida

            About Me Transporter

            Comments about NGK V-Power Spark Plug:

            1997 4.6L (w) V8 F-150 installation vehicle. The truck has 300K+ and was suffering from loss of power and a slight miss. It's used frequently for extremely safe, legal driving. And Less frequently for extremely hard and hot driving. Chose to replace all the plugs. Plugs are pregapped at .06, installation varies by make and model. They showed a considerable improvement in power and mileage. Without any noticeable deficiencies. Burned them up now 7 months later (50+ miles a day) on my way to buy another set.

            Comment on this reviewHelp Icon(earn points)

             
            5.0

            Good product at a reasonable price.

            By 

            from Sebring fl.

            About Me Auto Enthusiast

            Verified Buyer

            Pros

            • Increases Power

            Cons

              Best Uses

              • Everyday Driving

              Comments about NGK V-Power Spark Plug:

              Was all I needed .

              Comment on this reviewHelp Icon(earn points)

               
              5.0

              Great

              By 

              from Acworth, GA

              Verified Buyer
              3 or more reviews submitted

              Comments about NGK V-Power Spark Plug:

              Truck runs much better since these were installed.

              Comment on this reviewHelp Icon(earn points)

              (3 of 7 customers found this review helpful)

               
              5.0

              Great part for the price

              By 

              from Groveland, FL

              About Me Casual Driver

              Verified Buyer
              Level 2

              Pros

              • Easy To Install

              Cons

                Best Uses

                • Replacement

                Comments about NGK V-Power Spark Plug:

                I used these for replacement in my 97 Thunderbird LX. V8

                Comment on this reviewHelp Icon(earn points)

                Displaying reviews 1-10

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                Do you have questions about this product?(earn points for answers!)

                 

                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.

                11 Questions | 15 Answers
                Displaying questions 1-10Previous | Next »
                • Q:

                  how many plugs for 2 dr 4.3L '96 chevy blazer, and are these the correct plugs? Will i need anything else for installation?
                  Asked on 2/19/2016 by dan

                  1 answer

                  • CUSTOMER CARE

                    A:

                    Hi Dan, I'm happy to help you! You'll need 6 of these NGK V-Power Spark Plug - Part No. 3951 for 1996 Chevrolet Blazer 4.3L. It is essential to tighten a spark plug to the specified turning angle or torque setting. First, screw in the plug finger tight until the gasket meets the cylinder head. Then seat the plug/gasket with a torque or turning an angle wrench as specified in your owner's manual.

                    Answered on 2/22/2016 by Solomon from AAP
                • Q:

                  What is the recommended torque of these spark plugs?
                  Asked on 5/1/2014 by ChrisS from Dayton, OH

                  1 answer

                  • CUSTOMER CARE

                    A:

                    I'm happy to help, ChrisS! To find specific torque specifications for your vehicle I recommend purchasing a repair manual for your vehicle, it will contain torque specifications many parts of your vehicle. NGK also provides torque guidelines here: http://www.ngksparkplugs.com/techinfo/spark_plugs/installation.asp

                    Answered on 5/5/2014 by Heath, ASE Parts Specialist from AAP
                • Q:

                  what size socket for this spark plug
                  Asked on 10/15/2013 by blue from MARYLAND

                  2 answers

                  • CUSTOMER CARE

                    A:

                    Hi Blue, the socket wrench diameter for the NGK V-Power Spark Plug (Part No. 3951) is 5/8 inches.

                    Answered on 10/16/2013 by Steve from AAP
                  • A:

                    There are usually 2 sizes and you should need the smaller sized one. This special sized plug socket usually comes in a socket set.

                    Answered on 3/28/2014 by Halie Scott from Greenwood, SC
                • Q:

                  want to remove last item put in cart, spark plug wrong plug
                  Asked on 8/29/2013 by bob from philadelphia,pa

                  2 answers

                  • CUSTOMER CARE

                    A:

                    In order to remove the wrong part (spark plug), please feel free to call us at: 1-877-238-2623 or visit the nearest Advance Auto Parts store and one of our Parts Pros will gladly assist you with any questions or concerns you may have.

                    Answered on 8/29/2013 by Steve from AAP
                  • A:

                    Go to In Cart and click on it. You will notice a list of Names of items you have added to the list. Look at this list and find the name of the plug you didn't want. Then, look right under it and you'll see DELETE PRODUCT, or ITEM, or just simply the name of the plug. Click on this button and problem solved.

                    Answered on 3/28/2014 by Halie Scotttttt from Greenwood, SC
                • Q:

                  how many do i need and how do i install them in a 1998 oldsmobile cutlass?
                  Asked on 2/27/2013 by NAE BROWN from Houston, TX

                  1 answer

                  • CUSTOMER CARE

                    A:

                    With reference to your inquiry on the NGK V-Power Spark Plug - part# 3951, you would need six spark plugs for your Oldsmobile Cutlass. The front ones you can change by just removing the plug wires and using the proper tool. For the back plugs you have to undo the front motor mounts and pry or pull the motor forward. For any further assistance, please feel free to call us at: 1-877-238-2623 or visit the nearest Advance Auto Parts store and one of our Parts Pros will gladly assist you with any questions or concerns you may have.

                    Answered on 2/28/2013 by Vincent from AAP
                • Q:

                  pontiac aztek requiren how many spark plugs
                  Asked on 2/8/2013 by don from trenton n.j

                  2 answers

                  • CUSTOMER CARE

                    A:

                    With reference to your inquiry on the NGK V-Power Spark Plug - part# 3951, you would need six spark plugs for your Pontiac Aztek. For any further assistance, please feel free to call us at: 1-877-238-2623 or visit the nearest Advance Auto Parts store and one of our Parts Pros will gladly assist you with any questions or concerns you may have.

                    Answered on 2/9/2013 by Vincent from AAP
                  • A:

                    It requires 6 spark plugs for a V6. If it's a V8 you will need 8 of them. Usually it says on the side or rear of the car.

                    Answered on 3/28/2014 by Halie Scotttttt from Greenwood, SC
                • Q:

                  What spark plugs will fit the 2006 Ford F150XL 4.6 V8 ?
                  I need to REPLACE the three piece plugs.
                  Asked on 12/31/2012 by Bill from Jacksonville, Fl

                  1 answer

                  • CUSTOMER CARE

                    A:

                    This NGK V-Power Spark Plug (Part No. 3951) is an exact fit for your 2006 Ford F-150 XL For further assistance, please feel free to call us at 1-877-238-2623 or visit your nearest Advance Auto Parts store and one of our representatives would be more than happy to assist you.

                    Answered on 1/1/2013 by Steve from AAP
                • Q:

                  do you gap these plugs and if you do what is the gap
                  Asked on 8/3/2012 by diann from United States

                  1 answer

                  • CUSTOMER CARE

                    A:

                    Yes, this NGK V-Power Spark Plug (Part# 3951) is 1.52 mm pre-gapped. For further assistance, please feel free to call us at 1-877-238-2623 or visit your nearest Advance Auto Parts store and one of our representatives would be more than happy to assist you.

                    Answered on 8/4/2012 by Rick from AAP
                • Q:

                  whats the gap size?
                  Asked on 2/22/2012 by Anonymous

                  1 answer

                  • CUSTOMER CARE

                    A:

                    Initial suggested settings for spark plug gaps are: Single plug : 0.028 - 0.032", Dual plug : 0.025 - 0.030".

                    Answered on 2/23/2012 by Vincent from AAP
                • Q:

                  where is the spaark plugs is on the motor.
                  Asked on 12/1/2011 by Anonymous

                  1 answer

                  • CUSTOMER CARE

                    A:

                    To help you in a better manner, if you could please include the year, make, model and engine specification of the vehicle and we would be better able to assist you.

                    Answered on 12/2/2011 by Aaron from AAP
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