Original Equipment Platinum Iridium Spark Plug
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Motorcraft Original Equipment Platinum Iridium Spark Plug

Part No. SP-433 Warranty  

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
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Wrench Diameter (Inches):5/8
Resistor:Yes
Spark Plug Seat Style:Tapered
Type:Finewire Double Platinum Spark Plug
Tip Configuration:Ir Finewire Double Platinum
Ground Strap Quantity:1
Spark Plug Thread Size:14mm
Insulator Type:Standard
Manufacturer Heat Range:4
OE Number:AGSF32WM
Spark Plug Reach (Inches):0.679
Electrode Core Material:Copper Core
Electrode Tip Material:Iridium Alloy

REVIEW SNAPSHOT®

by PowerReviews
MotorcraftOriginal Equipment Platinum Iridium Spark Plug
 
4.5

(based on 10 reviews)

Ratings Distribution

  • 5 Stars

     

    (8)

  • 4 Stars

     

    (1)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (1)

89%

of respondents would recommend this to a friend.

Pros

  • Improves engine efficiency (8)
  • Durable (6)
  • Easy to install (6)
  • Increases power (6)

Cons

    Best Uses

    • Replacement (8)
    • Everyday driving (7)
      • Car & Truck:
      • Auto enthusiast (4), Casual driver (3)
      • Reviewer Profile:
      • Casual driver (4)

    Most Liked Positive Review

     

    WOULD ONLY INSTALL THESE ON ALL MY FORDS

    AFTER HAVING MANY DIFFERENT CARS AND INSTALLING DIFFERENT MAN UFACTURER SPARK PLUGS,THE CONCLUSION IS THE ORIGINAL OEM MANUFACTURER PLUGS THAT CAME WITH THE CAR WHEN BRAND NEW WILL WORK THE BEST. THESE WERE...Read complete review

    AFTER HAVING MANY DIFFERENT CARS AND INSTALLING DIFFERENT MAN UFACTURER SPARK PLUGS,THE CONCLUSION IS THE ORIGINAL OEM MANUFACTURER PLUGS THAT CAME WITH THE CAR WHEN BRAND NEW WILL WORK THE BEST. THESE WERE ENGINEERED FOR THE CAR AND WILL LAST THE WARRANTEE PEROD RECOMMENDED WITHOUT ANY PLUG FOULING OR PROBLEMS. THESE WERE RECOMMENDED BY VARIOUS MECHANICS AS THE BEST ONES TO INSTALL ON MY LINCOLN MARK VIII. THEY TELL ME TO STICK WITH ALL GENUINE FACTORY REPLACEMENT PARTS FOR MY VEHICLE BECASE OF BEING ENGINEERED TO LAST THE RECOMMENDED SERVICE INTERVALS. MANY AFTERMARKET PRODUCTS SOMETIMES JUST DONT HOLD UP. IF YOU HAVE A FORD,LINCOLN OR MERCURY AND YOU CHERISH YOUR RIDE, YOU SHOULD INSTALL THES PLUGS OVER EVERY OTHER ONES FOR TROUBLE FREE PERFORMANCE!

    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 10 customers

    Sort by

    Displaying reviews 1-10

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    (2 of 4 customers found this review helpful)

     
    5.0

    The RIGHT Stuff

    By Fords forever

    from Ephrata PA

    About Me Owner Seeking Quality

    Verified Buyer
    Level 2

    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 review(earn points)

      (2 of 5 customers found this review helpful)

       
      1.0

      Not gapped correctly

      By Gregory

      from Kingstowne, VA

      About Me Casual Driver, Mechanic

      Level 1

      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 review(earn points)

        (3 of 6 customers found this review helpful)

         
        5.0

        Great plug for Ford products

        By Muscle Car Man

        from Midwest

        About Me Auto Enthusiast, Casual Driver, Truck Enthusiast

        Verified Buyer
        Level 2

        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 review(earn points)

          (3 of 6 customers found this review helpful)

           
          4.0

          Stick to OEM

          By Andy

          from MA

          About Me Auto Enthusiast, Casual Driver, Mechanic

          Level 2

          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 review(earn points)

            (3 of 6 customers found this review helpful)

             
            5.0

            Best OEM Products

            By Eddie

            from Morristown, Tennessee

            About Me Casual Driver

            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 review(earn points)

              (4 of 7 customers found this review helpful)

               
              5.0

              Iridium spark plugs

              By ls23m9b

              from Shreveport,LA

              Verified Buyer
              Level 3

              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 review(earn points)

              (3 of 5 customers found this review helpful)

               
              5.0

              Great Spark

              By Taganator

              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 review(earn points)

                (3 of 6 customers found this review helpful)

                 
                5.0

                WOULD ONLY INSTALL THESE ON ALL MY FORDS

                By LOOKSLIKEMONEY04

                from NEW YORK CITY

                Verified Buyer
                Helpful Reviewer

                Pros

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

                Cons

                  Best Uses

                  • Everyday Driving
                  • Performance Driving
                  • Racing
                  • Replacement
                  • Restoration

                  Comments about Motorcraft Original Equipment Platinum Iridium Spark Plug:

                  AFTER HAVING MANY DIFFERENT CARS AND INSTALLING DIFFERENT MAN UFACTURER SPARK PLUGS,THE CONCLUSION IS THE ORIGINAL OEM MANUFACTURER PLUGS THAT CAME WITH THE CAR WHEN BRAND NEW WILL WORK THE BEST. THESE WERE ENGINEERED FOR THE CAR AND WILL LAST THE WARRANTEE PEROD RECOMMENDED WITHOUT ANY PLUG FOULING OR PROBLEMS. THESE WERE RECOMMENDED BY VARIOUS MECHANICS AS THE BEST ONES TO INSTALL ON MY LINCOLN MARK VIII. THEY TELL ME TO STICK WITH ALL GENUINE FACTORY REPLACEMENT PARTS FOR MY VEHICLE BECASE OF BEING ENGINEERED TO LAST THE RECOMMENDED SERVICE INTERVALS. MANY AFTERMARKET PRODUCTS SOMETIMES JUST DONT HOLD UP. IF YOU HAVE A FORD,LINCOLN OR MERCURY AND YOU CHERISH YOUR RIDE, YOU SHOULD INSTALL THES PLUGS OVER EVERY OTHER ONES FOR TROUBLE FREE PERFORMANCE!

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

                  Comment on this review(earn points)

                  (3 of 6 customers found this review helpful)

                   
                  5.0

                  Great Plug

                  By Henry

                  from Durham, NC

                  Verified Buyer
                  Helpful Reviewer

                  Pros

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

                  Cons

                  • Need to verify gap

                  Best Uses

                    Comments about Motorcraft Original Equipment Platinum Iridium Spark Plug:

                    Good product by Autolite. I was skeptical at first, as I always replace my Japanese cars with NGK... sometimes Bosch if it's euro car or the SPEC calls for it. But since this 2002 Mazda MPV has a "Ford-built" like engine, the OEM calls for this Autolite SPF 433. So I went with it. No issues at all, just need to check the gap for my minivan, which is 0.054" Starts and drives well.

                    • Car & Truck:
                    • 2002 Mazda MPV, Auto Enthusiast

                    Comment on this review(earn points)

                    (6 of 11 customers found this review helpful)

                     
                    5.0

                    This is the Platinum-Iridium Spark OEM

                    By EUBone

                    from Florence, SC

                    Pros

                    • Durable
                    • Improves Engine Efficiency

                    Cons

                      Best Uses

                      • Everyday Driving
                      • Replacement

                      Comments about Motorcraft Original Equipment Platinum Iridium Spark Plug:

                      Worth stick to original parts

                      • Car & Truck:
                      • Auto Enthusiast, Casual Driver

                      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.

                      4 Questions | 4 Answers
                      Displaying questions 1-4
                      • 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 1-4

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