Ford Motor Company Motorcraft Spark Plug Model Number Identification

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					                                                                                                                         Ford Motor Company
                                                                                                          Motorcraft Spark Plug Model Number Identification
 15-Apr-04                      Revision - "A"
         Example #1                                                                                                                                                  Example # 2
                                                                                                      Suffix                                                                                                                                                                   Suffix
            First    Second       Third            First         Second              Suffix           Letter/                                                            First         Second     Third            First         Second            Suffix           Suffix     Letter/
           Letter     Letter     Letter(s)        Number         Number             Letter(s)        Number                                                             Letter          Letter   Letter(s)        Number         Number           Letter(s)        Number     Number

           Thread                    Plug                                              Plug           Packaging                                                                                      Plug                                            Plug                      Packaging
          Diameter     Reach     Characteristic   Heat Range   Tip Configuration   Characteristics   Configuration                                                   Thread Diameter    Reach    Characteristic   Heat Range   Tip Configuration Characteristics   Gap Size   Configuration



            A           G           SP               3               2              FSM                 F4                                                                A                         SF               5               2                C             -7           F6
           A=         14MM          3/8" Gasket Seat               A7C, AS4C
           A=         14MM         .460" Conical Seat          ASF22C, ASF52C           The first letter in the part number designates the
           B=         18MM          1/2" Gasket Seat                  BTS8                "Thread Diameter". It can also designate the
 First
           B=         18MM         .468" Conical Seat          BSF44P, BSF82C              "Thread Reach" when NOT followed by the
Letter
           F=         1/2" Pipe Thread                                 F11                       second letter E, G, L, V, W, Y, Z
           T=        7/8" - 18             5/8"                       TT10
          PZT =          -            High Thread                   PZT2FE                     See Special Example (shown below)
                        E=                .472" Gasket Seat                         AES4C, AE22C
                        G=                .750" Gasket Seat                        AG24C, AGS42C
                        G=                .708" Conical Seat                     AGSF22C, AGSF43C
                                                                                                                      The second letter in the part number designates
          Second        L=                7/16" Gasket Seat                           AL7C, AL82
                                                                                                                     the "Thread Reach" only when the second letter
           Letter       T=            Transport (Hard Service)                     TT10
                                                                                                                                     E, G, L, V, W, Y, Z
                        W=             .708" (.288 short travel)                       AWSF44C
                        Y=            .968" (..360 Short Travel)         AYFS22FM, BYSF3-4 (18mm thread)
                        Z=           25mm (.984) Partial Thread                        AZFS22FE
                                    A=             Extra Wide Ground Electrode                AWSFA32C
                                                                                                                      The third Letter(s) can be used in combinations and they Indicate specific
                       Third        F=                     Conical Seat                      ASF42C, A7C
                                                                                                                                  spark plug characteristics and or spark plug types.
                     Letter(s)      P=                       5/8" Hex                   AGSP32C, AGSP52C
                                                                                                                                           (examples: SF; SP; PR; SFA; etc.)
                                    S=                 Suppressor (Carbon)                      ASF44P
                                               02 thru 09        Extremely Cold             AYFS092CFEC
                                   First        1 Thru 3              Cold             AGSF12FM, AGSF32C The First Number shows the spark plug heat ranges from zero up. Double digit numbers
                                 Number         4 Thru 7            Medium                   ASF42C, A7C                10 and 11 are exceptions to the general rule and designate very hot spark plugs.
                                               8 Thru 10               Hot                 BSF82C, BTS10
                                                            No Number        Non-Extended (standard) tip                  ASF4C, BSF6
                                                                                                                                                       The second number indicates the spark plug tip configuration,
                                                Second           2               Extended (power) tip                 AZFS22C, AGSP32C
                                                                                                                                                         EXCEPT in the case of a double digit heat range number.
                                                Number           3                 Extra Extended tip                 AGSP33C, AGSF43C
                                                                                                                                                                          (examples: 09, 10, 11)
                                                                 4         Special Extended (Long Pilot) tip           AGSP54C, BSF44P
                                                                              C                                                    Copper Core Electrode                                                  AGSF24C
                                                                              1                                                  Special Ground Electrode                                               AGSF12FM1
                                                                              E                                                Enhanced Platinum Electrode                                              AGSF32FEC
                                                                                                                                                                                                                                    The suffix Letter(s) can be used in
                                                                              F                                             Finewire Platinum Center Electrode                                           AGSF32FM
                                                              Suffix                                                                                                                                                           combinations and they Indicate specific spark
                                                                              S                                                       Special Resistor                                                  AGSF22FSM
                                                             Letter(s)                                                                                                                                                                    plug characteristics.
                                                                              M                                                      Nickel Plated Shell                                                AYFSF22FM
                                                                                                                                                                                                                                (examples: C1; FE; FEM; WM; YPC; etc.)
                                                                              P                                                 Standard Platinum Electrode                                                ASF42P
                                                                             W                                               Platinum Iridium Center Electrode                                          AGSF22WM
                                                                              Y          Small (less than .7mm dia.) Finewire Center Electrode w/Platinum Copper Core Ground Electrode                  AGSF22YPC
                                                                                            -4            .040" or .044" gap      BYSF3-4
                                                                            Suffix                                                              The suffix number indicates the factory set spark
                                                                                            -6                .060" gap           AGS52C-6
                                                                           Number                                                                                   plug gap.
                                                                                            -7                .070" gap           ASF52C-7
                                                                                         Suffix           None                                      10 Pack Carton
                                                                                         Letter/          F4 =                         Flat Pack Display carton w/4 spark Plugs
                                                                                        /Number           F6 =                         Flat Pack Display carton w/6 spark Plugs
                                                                                                                           Ford Motor Company
                                                                                                            Motorcraft Spark Plug Model Number Identification

         Special Example
                                                                                                        Suffix
            First    Second       Third              First         Second              Suffix           Letter/
           Letter     Letter     Letter(s)          Number         Number             Letter(s)        Number

           Thread                    Plug                                                Plug           Packaging
          Diameter     Reach     Characteristic     Heat Range   Tip Configuration   Characteristics   Configuration



            P           Z             T                2                                  F               F4

 First                                                                                Identifies the size of the ground shield that protrudes through
            P=        10 mm               Ground Shield Diameter
Letter                                                                                     the cylinder head and into the combustion chamber
          Second                                                                     Identifies the firing location in relationship to the seating surface
                       Z=         25.5mm               Firing Location
           Letter                                                                                             of the cylinder head
                      Third
                                     T=           High Thread                        Plug Family
                     Letter(s)
                                                       1                      Cold
                                  First                                                                 The first number identifies the spark plug heat
                                                       3                     Medium
                                 Number                                                                              range from one up.
                                                       5                      Hot
                                                    Second                                                                      The second number indicates the
                                                                 No Number                Non-Extended (standard) Tip
                                                    Number                                                                         spark plug tip configutration
                                                                                        F=                   Finewire Platinum Center Electrode           The suffix letter(s) can be used in combinations
                                                                    Suffix
                                                                                        E=                      Enhanced Platinum Electrode                      and they indicate specific spark plug
                                                                   Letter(s)
                                                                                        P=                      Standard Platinum Electrode                    characteristics (examples: FP; FE; etc.)
                                                                                       Suffix             F4 =                     Flat Pack Display carton w/4 spark Plugs
                                                                                       Letter/            F6 =                     Flat Pack Display carton w/6 spark Plugs
                                                                                      /Number