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
 
4.7

(based on 39 reviews)

Ratings Distribution

  • 5 Stars

     

    (28)

  • 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 (27)
  • Improves engine efficiency (25)
  • Increases power (22)
  • Durable (15)
  • Lightweight (4)

Cons

    Best Uses

    • Everyday driving (33)
    • Replacement (23)
    • Performance driving (8)
    • Restoration (6)
      • Car & Truck:
      • Auto enthusiast (4), Casual driver (3), Mechanic (3)
      • Reviewer Profile:
      • Casual driver (20), Auto enthusiast (17), 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 39 customers

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    Displaying reviews 1-10

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    5.0

    Great part for the price

    By Dr. Rob

    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 review(earn points)

       
      5.0

      good spark plug

      By b

      from Shelby NC

      About Me Auto Enthusiast, Casual Driver

      Ask me a question

      Level 5

      Pros

      • Durable
      • Easy To Install
      • Improves Engine Efficiency

      Cons

        Best Uses

        • Everyday Driving
        • Replacement

        Comments about NGK V-Power Spark Plug:

        dos the job

        Comment on this review(earn points)

        (9 of 16 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)

          (8 of 16 customers found this review helpful)

           
          5.0

          dude its a plug...

          By Chevy Dude

          from Exeter, Me

          About Me Auto Enthusiast, Mechanic

          Helpful Reviewer

          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)

          (7 of 16 customers found this review helpful)

           
          5.0

          I would buy again again this product

          By Ibrahim Ozturk

          from 1401 opal ct Raleigh NCA27615

          Verified Buyer
          Helpful Reviewer

          Comments about NGK V-Power Spark Plug:

          Great

          Comment on this review(earn points)

          (10 of 20 customers found this review helpful)

           
          4.0

          good product at the right price.

          By nomechanic

          from wv

          About Me Casual Driver

          Ask me a question

          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)

            (10 of 18 customers found this review helpful)

             
            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)

              (8 of 17 customers found this review helpful)

               
              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)

                (7 of 14 customers found this review helpful)

                 
                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)

                  (9 of 17 customers found this review helpful)

                   
                  4.0

                  good bargain

                  By Doug45371

                  from Tipp City, OH

                  About Me Auto Enthusiast

                  Verified Buyer
                  Helpful Reviewer

                  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)

                    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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