Original Equipment Platinum Iridium Spark Plug
Hover over the image to zoom in
Share this:

Motorcraft Original Equipment Platinum Iridium Spark Plug

Part No. SP-433 Warranty Details  
$3.29
Quantity  Add to Cart

See if this part fits a specific vehicle.

Check Vehicle Fit

Motorcraft Original Equipment spark plugs are designed, engineered and recommended by Ford Motor Company.

Product Features:
  • Same part installed when the engine rolled off the assembly line
  • 100,000-mile service interval
  • Iridium-enhanced center electrode for improved durability and wear resistance
  • .6 mm finewire design improves ignitability
Back To Top
Electrode Core Material:Copper Core
Electrode Tip Material:Iridium Alloy
Ground Strap Quantity:1
Insulator Type:Standard
Manufacturer Heat Range:4
Reach:0.679 in
Resistor:Yes
Seat Type:Tapered
Thread Diameter:14 mm
Tip Configuration:Ir Finewire Double Platinum
Type:Finewire Double Platinum Spark Plug
Wrench Diameter:5/8 in

REVIEW SNAPSHOT®

by PowerReviews
MotorcraftOriginal Equipment Platinum Iridium Spark Plug
 
4.5

(based on 13 reviews)

Ratings Distribution

  • 5 Stars

     

    (10)

  • 4 Stars

     

    (2)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (1)

92%

of respondents would recommend this to a friend.

Pros

  • Improves engine efficiency (10)
  • Easy to install (8)
  • Increases power (8)
  • Durable (7)

Cons

No Cons

Best Uses

  • Replacement (10)
  • Everyday driving (9)
  • Performance driving (4)
  • Restoration (3)
    • Car & Truck:
    • Auto enthusiast (4), Casual driver (3)
    • Reviewer Profile:
    • Casual driver (6), Auto enthusiast (4), Mechanic (4), Truck enthusiast (3)

Most Liked Positive Review

 

Stick to OEM

I got these OEM MotorCraft plugs to replace the plugs in my 98 Lincoln Mark VIII. I did however get one bad plug, causing misfires. I was out of town as it happened...Read complete review

I got these OEM MotorCraft plugs to replace the plugs in my 98 Lincoln Mark VIII. I did however get one bad plug, causing misfires. I was out of town as it happened on Easter day, but I was able to login to my account, print my order confirmation, and bring it to a store and receive a replacement. No matter what brand of anything you buy, there is always the slim chance of it being DOA. No specific fault of MotorCraft over any other company. Always stick to OEM parts when you can.

VS

Most Liked Negative Review

 

Not gapped correctly

This is the new part number for the AGSF32WM plugs. Bought 6 plugs for my 2004 DOHC "S". None were gapped correctly. Anywhere from .042-.052.
Trying Autolite.

This is the new part number for the AGSF32WM plugs. Bought 6 plugs for my 2004 DOHC "S". None were gapped correctly. Anywhere from .042-.052.
Trying Autolite.

Reviewed by 13 customers

Displaying reviews 1-10

Back to top

Previous | Next »

 
5.0

Ford Motorcraft Spark Plugs

By 

from ny

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

Verified Buyer

Pros

  • Easy To Install
  • Improves Engine Efficiency
  • Increases Power
  • My Ford Is Running Right

Cons

    Best Uses

    • Everyday Driving
    • Performance Driving
    • Replacement

    Comments about Motorcraft Original Equipment Platinum Iridium Spark Plug:

    A great price for quality product.

    Comment on this reviewHelp Icon

     
    5.0

    Motorcraft Platinum Iridium Spark Plug

    By 

    from Tampa FL

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

    Verified Buyer

    Pros

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

    Cons

    • None

    Best Uses

    • Everyday Driving
    • Performance Driving
    • Replacement
    • Restoration

    Comments about Motorcraft Original Equipment Platinum Iridium Spark Plug:

    Excellent replacement product, just like the factory ones.

    Comment on this reviewHelp Icon

     
    4.0

    Don't cover the judge by a book

    By 

    from Ft Wayne

    About Me Retired Mechanic

    Verified Buyer

    Comments about Motorcraft Original Equipment Platinum Iridium Spark Plug:

    Just as good as other plugs when you set gap correctly.

    Comment on this reviewHelp Icon

    (5 of 12 customers found this review helpful)

     
    5.0

    The RIGHT Stuff

    By 

    from Ephrata PA

    About Me Owner Seeking Quality

    See all my reviews

    Verified Buyer
    Helpful Reviewer

    Pros

    • Easy To Install

    Cons

      Best Uses

      • Replacement

      Comments about Motorcraft Original Equipment Platinum Iridium Spark Plug:

      What can be said about Ford OEM parts? I will stick with them!

      Comment on this reviewHelp Icon

      (4 of 11 customers found this review helpful)

       
      1.0

      Not gapped correctly

      By 

      from Kingstowne, VA

      About Me Casual Driver, Mechanic

      Helpful Reviewer

      Pros

      • Easy To Install

      Cons

      • Incorrect gap
      • No Improvement In Performance

      Best Uses

        Comments about Motorcraft Original Equipment Platinum Iridium Spark Plug:

        This is the new part number for the AGSF32WM plugs. Bought 6 plugs for my 2004 DOHC "S". None were gapped correctly. Anywhere from .042-.052.
        Trying Autolite.

        Comment on this reviewHelp Icon

        (6 of 12 customers found this review helpful)

         
        5.0

        Great plug for Ford products

        By 

        from Midwest

        About Me Auto Enthusiast, Casual Driver, Truck Enthusiast

        See all my reviews

        Verified Buyer
        Helpful Reviewer

        Pros

        • Durable
        • Easy To Install
        • Ford parts in a Ford
        • Improves Engine Efficiency
        • Increases Power

        Cons

          Best Uses

          • Everyday Driving
          • Replacement

          Comments about Motorcraft Original Equipment Platinum Iridium Spark Plug:

          Motorcraft replacement parts are designed by the company that made the vehicle. Who knows the car any better than the manufacturer?

          Comment on this reviewHelp Icon

          (8 of 14 customers found this review helpful)

           
          4.0

          Stick to OEM

          Profile Image

          By 

          from MA

          About Me Auto Enthusiast, Casual Driver, Mechanic

          See all my reviews

          Helpful Reviewer

          Pros

          • Easy To Install
          • Improves Engine Efficiency

          Cons

            Best Uses

            • Everyday Driving
            • Replacement

            Comments about Motorcraft Original Equipment Platinum Iridium Spark Plug:

            I got these OEM MotorCraft plugs to replace the plugs in my 98 Lincoln Mark VIII. I did however get one bad plug, causing misfires. I was out of town as it happened on Easter day, but I was able to login to my account, print my order confirmation, and bring it to a store and receive a replacement. No matter what brand of anything you buy, there is always the slim chance of it being DOA. No specific fault of MotorCraft over any other company. Always stick to OEM parts when you can.

            Comment on this reviewHelp Icon

            (6 of 12 customers found this review helpful)

             
            5.0

            Best OEM Products

            By 

            from Morristown, Tennessee

            About Me Casual Driver

            See all my reviews

            Ask me a question

            Verified Buyer
            Helpful Reviewer

            Pros

            • Improves Engine Efficiency
            • Increases Power

            Cons

              Best Uses

              • Everyday Driving
              • Replacement

              Comments about Motorcraft Original Equipment Platinum Iridium Spark Plug:

              Always Replace Parts With OEM If Possible

              Comment on this reviewHelp Icon

              (6 of 11 customers found this review helpful)

               
              5.0

              Iridium spark plugs

              Profile Image

              By 

              from Shreveport,LA

              See all my reviews

              Verified Buyer
              3 or more reviews submitted

              Pros

              • Durable
              • Improves Engine Efficiency
              • Increases Power

              Cons

              • none

              Best Uses

              • Everyday Driving
              • Performance Driving
              • Racing
              • Replacement

              Comments about Motorcraft Original Equipment Platinum Iridium Spark Plug:

              Motorcraft gets better with age. The best they have come up with so far. Loooong lasting!!!!

              • Car & Truck:
              • Auto Enthusiast, Casual Driver, Competitive Driver, Mechanic, Truck Enthusiast

              Comment on this reviewHelp Icon

              (6 of 15 customers found this review helpful)

               
              5.0

              Great Spark

              By 

              from Spring, TX

              Verified Buyer
              Helpful Reviewer

              Pros

              • Durable
              • Improves Engine Efficiency
              • Increases Power

              Cons

                Best Uses

                • Everyday Driving
                • Replacement
                • Restoration

                Comments about Motorcraft Original Equipment Platinum Iridium Spark Plug:

                oem only way togo

                Comment on this reviewHelp Icon

                Displaying reviews 1-10

                Back to top

                Previous | Next »

                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.

                5 Questions | 5 Answers
                Displaying questions 1-5
                • Q:

                  what is the spark plug torque size
                  Asked on 6/15/2016 by casey from st charles, mo

                  1 answer

                  • CUSTOMER CARE

                    A:

                    Hi Casey, happy to help! I assume you are referring the spark plug torque details for a Ford Escape 3.0. It is 11 ft.lbs.

                    Answered on 6/21/2016 by John the Car-Doc from AAP
                • Q:

                  I thought my 2004 Mercury Sable 3.0 / 24 Valve came with Double Platinum plugs not Iridium? What if any would be the advantage of Iridium with a car that will get driven about 8,000 miles this year?
                  Asked on 2/6/2012 by MikeD2

                  1 answer

                  • CUSTOMER CARE

                    A:

                    A platinum or iridium spark plug refers to the material that the centre electrode is made from. The advantage of this is that these precious metals are stronger and less reactive than copper and so the central electrode can be made much finer. A standard copper electrode is a couple of millimetres across, whereas the diameter of a platinum electrode is 0.8mm and an iridium electrode can be made down to 0.6mm.Having a finer centre electrode means that the voltage required for the spark to jump across the spark plug gap is reduced as the charge is more concentrated at the tip.

                    Answered on 2/7/2012 by Vincent from AAP
                • Q:

                  why is this product shown on the internet site to be $2.69 but when you go into the store they try to charge you $4.89 for the same thing?
                  Asked on 4/7/2011 by DH from muskogee oklahoma

                  1 answer

                  • CUSTOMER CARE

                    A:

                    Please contact us at 1-877-ADVANCE and one of our representatives will help you further assistance.

                    Answered on 6/11/2011 by Just Ask Jacob! from AAP
                • Q:

                  what setting is required for the us in my 2005 ford five hundred
                  Asked on 2/2/2011 by Anonymous from cedar mtn,nc

                  1 answer

                  • CUSTOMER CARE

                    A:

                    I would suggest you to check your vehicles manual for specifications.

                    Answered on 3/7/2011 by David the Dynamite Parts Guy from AAP
                • Q:

                  I've bought the SP-433 spark plugs for my 2001 Ford Escape with the 3.0 engine.Is there anything special with installing them ? What to look out for so it's not done wrong or break something. And I did buy the intake gasket set at the same time.
                  Asked on 6/4/2010 by Anonymous from Ocala, FL

                  1 answer

                  • CUSTOMER CARE

                    A:

                    When replacing the spark plugs, I recommend using the special spark plug socket. Start threading it in, with an extension if necessary. Once you feel that the spark plug and reached the end of the threads, turn the spark plug another half a turn or so and that should be all you need to do.

                    Answered on 6/4/2010 by Mike from AAP
                Displaying questions 1-5

                Do you have a question about this product? 

                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.