V-Power Spark Plug
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V-Power Spark Plug V-Power Spark Plug
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NGK V-Power Spark Plug

Part No. 3951 Warranty  

See if this part fits a specific vehicle.

Check Vehicle Fit

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
 
4.6

(based on 37 reviews)

Ratings Distribution

  • 5 Stars

     

    (26)

  • 4 Stars

     

    (10)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (1)

  • 1 Stars

     

    (0)

97%

of respondents would recommend this to a friend.

Pros

  • Easy to install (25)
  • Improves engine efficiency (24)
  • Increases power (22)
  • Durable (14)
  • Lightweight (4)

Cons

    Best Uses

    • Everyday driving (32)
    • Replacement (21)
    • Performance driving (8)
    • Restoration (6)
      • Car & Truck:
      • Auto enthusiast (4), Casual driver (3), Mechanic (3)
      • Reviewer Profile:
      • Casual driver (18), Auto enthusiast (16), Mechanic (7), Truck enthusiast (6), Competitive driver (3)

    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 37 customers

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    Displaying reviews 1-10

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    (0 of 1 customers found this review helpful)

     
    5.0

    Does the job

    By Shimbo

    from Augusta, Georgia

    About Me Casual Driver

    3 or more reviews submitted

    Pros

    • Easy To Install
    • Improves Engine Efficiency
    • Increases Power

    Cons

      Best Uses

      • Everyday Driving

      Comments about NGK V-Power Spark Plug:

      Installed these into my 1999 Ford Mustang along with new wires. Car is no longer misfiring. Im happy with this purchase.

      Comment on this review(earn points)

       
      5.0

      dude its a plug...

      By Chevy Dude

      from Exeter, Me

      About Me Auto Enthusiast, Mechanic

      Level 1

      Pros

      • Improves Engine Efficiency
      • Increases Power
      • Like The "v"

      Cons

      • Difficult To Install
      • You Dont Just Add Water

      Best Uses

      • Everyday Driving
      • Replacement

      Comments about NGK V-Power Spark Plug:

      1st time using NGK with auto engine. Have had them on small motors for decads, works fine. Wish you could get a Delco part at this price. All plugs where within .008 of correct gap out of box.

      Comment on this review(earn points)

       
      5.0

      I would buy again again this product

      By Ibrahim Ozturk

      from 1401 opal ct Raleigh NCAA 27615

      Verified Buyer

      Comments about NGK V-Power Spark Plug:

      Great

      Comment on this review(earn points)

       
      4.0

      good product at the right price.

      By nomechanic

      from wv

      About Me Casual Driver

      Verified Buyer
      3 or more reviews submitted

      Pros

      • Durable

      Cons

        Best Uses

        • Everyday Driving

        Comments about NGK V-Power Spark Plug:

        Bought this productvfor a f150,no more misses. Sounds great.

        Comment on this review(earn points)

         
        5.0

        Highly Recommend

        By BlackSheep

        from Warwick, R.I.

        About Me Auto Enthusiast, Casual Driver, Mechanic

        Ask me a question

        Level 3

        Pros

        • Improves Engine Efficiency
        • Increases Power

        Cons

          Best Uses

          • Everyday Driving
          • Performance Driving
          • Replacement

          Comments about NGK V-Power Spark Plug:

          I have been using NGK spark plugs for over 20 years. I've never had one issue pertaining to them at all. I do routine mileage maintenance every 50,000, but most of the time. I really don't even need to replace the ones that I currently have installed because they are still in terrific shape. Like the saying goes " you get what you pay for"... I think they are worth every penny. You have to remember, if you're driving a SUV , it's not intended to do a 1/4 mile in 6 seconds. Most likely will only see continued great idle and fuel mileage. These are great plugs hands down. !

          Comment on this review(earn points)

           
          5.0

          It is a spark plug.

          By Tim the Blazer guy

          from Glen Rock, PA

          About Me Auto Enthusiast, Casual Driver, Truck Enthusiast

          Ask me a question

          Verified Buyer
          Level 4

          Pros

          • Durable
          • Easy To Install

          Cons

            Best Uses

            • Everyday Driving
            • Replacement
            • Restoration

            Comments about NGK V-Power Spark Plug:

            Got these to replace the worn out champion plugs in my 2000 blazer. They work just fine.

            Comment on this review(earn points)

             
            5.0

            I would buy again

            By none

            from Dayton Ohio

            About Me Casual Driver

            Verified Buyer
            Level 2

            Pros

            • Easy To Install
            • Improves Engine Efficiency
            • Increases Power

            Cons

              Best Uses

              • Everyday Driving

              Comments about NGK V-Power Spark Plug:

              The plugs were needed. gas mileage inproved as well as power

              Comment on this review(earn points)

               
              4.0

              good bargain

              By Doug45371

              from Tipp City, OH

              About Me Auto Enthusiast

              Verified Buyer
              Level 1

              Pros

              • Improves Engine Efficiency
              • Increases Power

              Cons

                Best Uses

                • Everyday Driving

                Comments about NGK V-Power Spark Plug:

                A good product at a good price. I can feel the increased power. I will but this product again.

                Comment on this review(earn points)

                 
                5.0

                Great product!

                By Pudgee

                from Chicago

                About Me Out Of Control Diy'er

                Ask me a question

                Verified Buyer
                Level 2

                Pros

                • Improves Engine Efficiency
                • Increases Power

                Cons

                  Best Uses

                  • Everyday Driving

                  Comments about NGK V-Power Spark Plug:

                  Just changed them before the -15* weather hit....barely turned the key and it was running on a cold morning!!!

                  Comment on this review(earn points)

                   
                  5.0

                  Nice plugs

                  By Pete

                  from Brick, NJ

                  About Me Auto Enthusiast, Casual Driver, Mechanic

                  Verified Buyer
                  3 or more reviews submitted

                  Pros

                  • Easy To Install

                  Cons

                  • No Improvement In Performance

                  Best Uses

                  • Everyday Driving
                  • Replacement

                  Comments about NGK V-Power Spark Plug:

                  Nice replacement for OE plugs.

                  Comment on this review(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. Or contact Customer Care by email or call 1-877-238-2623.

                  10 Questions | 14 Answers
                  Displaying questions 1-10
                  • 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

                    • 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
                    • 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
                  • 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

                    • 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
                    • 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
                  • 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

                    • 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
                    • 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
                  • 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
                  • Q:

                    Is these plugs pre-gap?
                    Asked on 9/4/2011 by Anonymous

                    2 answers

                    • A:

                      Usually now of days I don't even know if you can get them ungapped. So yes they are gaped already.

                      Answered on 3/28/2014 by Halie from Greenwood, SC
                    • CUSTOMER CARE

                      A:

                      Yes, this spark plug is 1.52 mm pre-gapped.

                      Answered on 9/5/2011 by Steve from AAP
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