Spark Plug
Hover over the image to zoom in
Share this:

ACDelco Spark Plug

Part No. CR43TS Warranty  

See if this part fits a specific vehicle.

Check Vehicle Fit

ACDelco is a global leader in automotive replacement parts and related services and offers quality aftermarket products for most makes and models, including General Motors, Ford, Chrysler, Toyota and Honda, plus many original equipment service replacement parts. ACDelco products can be found in more than 100 countries located on six of the seven continents and are sourced globally to meet the needs of the local markets, including "maintenance" parts commonly replaced during the lifetime of a vehicle (e.g., batteries, oil filters, air filters, wiper blades, shocks and brakes), as well as "repair" parts (e.g., alternators, radiators, chassis and heating/cooling components). ACDelco offers more than 80,000 parts across 37 product lines.

ACDelco has over 100 years of experience in the automotive industry and is a brand of GM Customer Care and Aftersales, a division of General Motors. ACDelco employs a two- or three-tiered distribution model, utilizing a network of appointed wholesale distributors to service independent installers, ACDelco independent service centers, retail and fleet customers.

Product Features:

  • The kind of firepower you expect from ACDelco. The spark plug is what started it all for us, and with over 100 years of innovation behind each spark plug, you know they're going to be great. From the old to the new and even the non-automotive, ACDelco has a spark plug to fit just about whatever your need may be.
Back To Top
Manufacturer Heat Range:5
Spark Plug Thread Size:14

REVIEW SNAPSHOT®

by PowerReviews
ACDelcoSpark Plug
 
4.5

(based on 11 reviews)

Ratings Distribution

  • 5 Stars

     

    (9)

  • 4 Stars

     

    (1)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (1)

82%

of respondents would recommend this to a friend.

Pros

  • Easy to install (9)
  • Improves engine efficiency (8)
  • Durable (7)
  • Increases power (7)

Cons

    Best Uses

    • Everyday driving (11)
    • Replacement (6)
    • Restoration (3)
      • Reviewer Profile:
      • Casual driver (5), Auto enthusiast (4), Mechanic (3)

    Most Liked Positive Review

     

    original replacements

    nothing fancy, just the original replacement for a gm vehicle. priced fairly...

    nothing fancy, just the original replacement for a gm vehicle. priced fairly...

    VS

    Most Liked Negative Review

     

    just ok

    They are over rated there just ok I prefer ngk v powers they run better and perform way nicer.

    They are over rated there just ok I prefer ngk v powers they run better and perform way nicer.

    Reviewed by 11 customers

    Sort by

    Displaying reviews 1-10

    Back to top

    Previous | Next »

    (0 of 3 customers found this review helpful)

     
    5.0

    Stick with ACDelco

    By Dale_z28

    from Bloomington indiana

    About Me Auto Enthusiast, Casual Driver

    Ask me a question

    Verified Buyer
    Level 3

    Pros

    • Easy To Install
    • Improves Engine Efficiency
    • Increases Power

    Cons

      Best Uses

      • Everyday Driving
      • Replacement
      • Restoration

      Comments about ACDelco Spark Plug:

      I've been tuning my cars and trucks for almost 40 years, and altho I've tried other plugs, I prefer AC Delco

      Comment on this review(earn points)

      (5 of 8 customers found this review helpful)

       
      4.0

      Plugs

      By TBIRD

      from Gainesville, VA

      About Me Auto Enthusiast

      Verified Buyer
      3 or more reviews submitted

      Pros

      • Durable
      • Easy To Install

      Cons

        Best Uses

        • Everyday Driving

        Comments about ACDelco Spark Plug:

        A good OEM plug to keep my truck running as good as possible after 147,000 miles.

        Comment on this review(earn points)

        (4 of 8 customers found this review helpful)

         
        5.0

        ac for gm cars

        By bubber

        from salem,va.

        Verified Buyer
        Level 2

        Pros

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

        Cons

          Best Uses

          • Everyday Driving
          • Performance Driving
          • Replacement
          • Restoration

          Comments about ACDelco Spark Plug:

          good buy for gm products.

          Comment on this review(earn points)

          (5 of 11 customers found this review helpful)

           
          5.0

          Awesome Product

          By Big Al

          from Jefferson, Georgia

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

          Pros

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

          Cons

            Best Uses

            • Everyday Driving
            • Performance Driving
            • Replacement
            • Restoration

            Comments about ACDelco Spark Plug:

            I've been using AC Delco plugs for many years. Great product!!!

            Comment on this review(earn points)

            (11 of 23 customers found this review helpful)

             
            5.0

            Always use AC plugs in GM

            By Hedge Apple

            from Western Kentucky

            About Me Auto Enthusiast, Mechanic, Truck Enthusiast

            Ask me a question

            Verified Buyer
            3 or more reviews submitted

            Pros

            • Always Use Ac In Gm Stuff

            Cons

            • none

            Best Uses

            • Everyday Driving
            • Replacement

            Comments about ACDelco Spark Plug:

            Be sure to use anti seize on threads

            Comment on this review(earn points)

            (20 of 42 customers found this review helpful)

             
            5.0

            The GM Standard!!!

            By Vegas "G"

            from Las Vegas, NV

            About Me Casual Driver

            Verified Buyer
            Level 3

            Pros

            • Easy To Install
            • Improves Engine Efficiency

            Cons

              Best Uses

              • Everyday Driving

              Comments about ACDelco Spark Plug:

              Good Old fashion tune up!

              Comment on this review(earn points)

              (21 of 48 customers found this review helpful)

               
              1.0

              just ok

              By car dude

              from downers ill

              About Me Mechanic, Truck Enthusiast

              Pros

                Cons

                • No Improvement In Performance

                Best Uses

                • Everyday Driving

                Comments about ACDelco Spark Plug:

                They are over rated there just ok I prefer ngk v powers they run better and perform way nicer.

                Comment on this review(earn points)

                (22 of 42 customers found this review helpful)

                 
                5.0

                would buy it again

                By darlene

                from powder springs,ga.

                About Me Casual Driver

                Ask me a question

                Verified Buyer
                Level 2

                Pros

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

                Cons

                  Best Uses

                  • Everyday Driving

                  Comments about ACDelco Spark Plug:

                  it improved the performance of my truck.it gave it alot more power.

                  Comment on this review(earn points)

                  (19 of 41 customers found this review helpful)

                   
                  5.0

                  BUY THEM AGAIN

                  By SLIP

                  from NC

                  About Me Casual Driver

                  Verified Buyer
                  Helpful Reviewer

                  Pros

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

                  Cons

                    Best Uses

                    • Everyday Driving
                    • Replacement

                    Comments about ACDelco Spark Plug:

                    PERFICT FIT OME

                    Comment on this review(earn points)

                    (25 of 45 customers found this review helpful)

                     
                    5.0

                    My favorite spark plug

                    By twentyfive

                    from Milwaukee, WI

                    Verified Buyer
                    Level 3

                    Pros

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

                    Cons

                      Best Uses

                      • Everyday Driving
                      • Replacement

                      Comments about ACDelco Spark Plug:

                      I have been driving GM vehicles for 43 years and always use AC spark plugs. I believe in using original equipment when possible and all my cars and trucks last more than 200,000 miles.

                      • Car & Truck:
                      • Truck Enthusiast

                      Comment on this review(earn points)

                      Displaying reviews 1-10

                      Back to top

                      Previous | Next »

                      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.

                      6 Questions | 7 Answers
                      Displaying questions 1-6
                      • Q:

                        do spark plugs need to be gapped after purchasing or are they pre gapped
                        Asked on 4/27/2014 by babygirl from mn.

                        1 answer

                        • CUSTOMER CARE

                          A:

                          Hi Babygirl, glad to assist you! This spark plug is pre-gapped at .044 inch.

                          Answered on 4/28/2014 by Steve from AAP
                      • Q:

                        I have a brand new set of AC Delco R45TS spark plugs that were purchased for my 1987 Chev G20,5.7L (350) V8, many years ago. Are these the right plugs? They differ from the exact plug listed.
                        Asked on 4/12/2013 by Richard from Charlottesville, VA

                        1 answer

                        • CUSTOMER CARE

                          A:

                          Sorry, the ACDelco Spark Plug - part# R45TS is not an ideal part for your 1987 Chevrolet G20. 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 4/12/2013 by Vincent from AAP
                      • Q:

                        Spark Plugs: "Manufacturer Heat Range" (1 thru 10?)

                        What do the numbers represent? i.e. Is a rating of 8 lower or higher in heat tolerance.

                        Thank you in advance.
                        Asked on 12/23/2012 by Sven from LI,NY

                        1 answer

                        • CUSTOMER CARE

                          A:

                          With reference to this ACDelco Spark Plug - part# CR43TS, a spark plug is said to be "hot" if it is a better heat insulator, keeping more heat in the tip of the spark plug. A spark plug is said to be "cold" if it can conduct more heat out of the spark plug tip and lower the tip's temperature. Whether a spark plug is "hot" or "cold" is known as the heat range of the spark plug. For any further assistance, please visit your nearest Advance Auto store or call us directly at 1-877-ADVANCE (238-2623) and one of our representatives there would be more than happy to assist you.

                          Answered on 12/24/2012 by Vincent from AAP
                      • Q:

                        what is the gap for a built 1974 454 bb chevy?
                        Asked on 11/24/2012 by kip from richfield wi

                        1 answer

                        • CUSTOMER CARE

                          A:

                          For further assistance regarding the ACDelco Spark Plug (Part No. CR43TS), please provide the year, make, model and engine size of your vehicle. For more information, 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 11/25/2012 by Steve from AAP
                      • Q:

                        The top center electrode just "came out" in one plug and stayed in the spark plug wire end. The plugs are less than a year old, so I'm wondering if this is covered under warranty?

                        My uncle accidentally lost the center piece.

                        Thanks.
                        Asked on 9/26/2011 by Jams from Eastern Ohio

                        1 answer

                        • CUSTOMER CARE

                          A:

                          We greatly appreciate your taking time to submit a review. Please call us at 1-877-ADVANCE (238-2623) and we would be more than happy to assist you.

                          Answered on 9/27/2011 by Vincent from AAP
                      • Q:

                        i have a 1992 ford f150 pu with a302 engine it run great at idle speed but at highway speed when under a slight load it starts to miss. i have changed plugs , plug wires, cap and roter, coil pick up coil and computer , i need help what else can cause this. please advise
                        Asked on 7/18/2011 by Anonymous

                        2 answers

                        • CUSTOMER CARE

                          A:

                          I would suggest taking your vehicle to a certified mechanic for a proper diagnosis before buying and having parts installed that may not (solve/be) the problem.

                          Answered on 7/19/2011 by Steve from AAP
                        • A:

                          If you've got fire, then it's got to be something with the fuel. When my 1992 Chevy Silverado did this, I too changed out everything you did. Turns out it was my fuel pump.

                          Answered on 10/14/2011 by JVT from Lexington, Ky
                      Displaying questions 1-6

                      Do you have a question about this product? 

                      Create or view your online garage

                      Check out the specials in our monthly flyer

                       
                       
                      Disclaimer We strive to keep all information accurate and up-to-date; however, product availability, pricing, promotions and store hours are subject to change without notice. Please contact Customer Care if you have any questions or corrections.