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Searching for your parts in the DENSO part catalog is easy. Simply select the type of part you are looking for along with the year/make/model of your U.S. or Canadian vehicle. For vehicles in Latin America, please go here.

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    Search for cross reference part numbers for other manufacturers of the parts you're looking for.

    Cross Reference information is provided as a guide only. Please refer to the "Applications" lookup tabs for more detail. Materials and designs will differ among brands, so plugs are not exactly alike. Always check with your OE service manual for proper installation and settings.

    Spark Plug Part Numbering

    S Type of precious metal
    F Center: 0.55 mm diameter iridium. Ground electrode: 0.7 mm diameter platinum
    P Platinum plug
    S 0.7 mm diameter iridium
    SV 0.4 mm diameter iridium
    Z 0.55 mm diameter iridium
    W

    K

    		 Thread Diameter and Hex Size
    C 12×14.0
    L 18×22.2 (Reach: 12 mm)
    M 18×25.4 (Reach: 12 mm)
    MA 18×20.6 (Tapered seat, Reach: 12 mm)
    MW 18×20.6 (Reach: 12 mm)
    J 14×20.6 (Projected plug)
    K 14×16.0 (ISO Small Hex plug)
    KJ 14×16.0 (ISO Projected Small Hex plug)
    LP 14×20.6 (Plug for LPG applications)
    N 10x 16.0
    Q 14×16.0 (Small Hex plug)
    QJ 14×16.0 (Projected Small Hex plug)
    QL 14×20.6 (Small Hex long housing plug)
    S 14×20.6 (Surface gap or Rotary)
    T 14×16.0 (Tapered seat)
    TR 14×20.6 (For marine applications)
    W 14×20.6, 14×19.0 (Compact type)
    X 12×18.0
    XE 12×14.0
    XU 12×16.0
    U 10×16.0
    Y 8×13.0
    Z 1/2PFx23.8
    16

    20

    		 Heat Range
    Denso NGK Champion Bosch
    9
    14
    16
    20
    22
    24
    27
    29
    31
    32
    34
    35    		 2
    4
    5
    6
    7
    8
    9
    9.5
    10
    10.5
    11
    11.5    		 18
    16, 14
    12, 11
    10, 9
    8, 7
    6, 63, 61
    4, 59
    57
    55
    53

     

     

    		 10
    9
    8
    7, 6
    5
    4
    3
    2

     

     

     

     
    E Reach
    A 19.0 mm (Electrode Position: 7 mm) 21.5mm
    B 19.0 mm (Electrode Position: 9.5 mm)
    C 19.0 mm (Electrode Position: 5.0 mm)
    D 19.0 mm (Shroud 2)
    E (With Gasket) 19.0 mm 20.0 mm
    E (Tapered Seat) 19.0 mm
    F 12.7 mm
    FE 19.0 mm (Half thread)
    G 19.0 mm (Shroud 2.8) 19.0 mm (Shroud 3.0)
    H 19.0 mm (Electrode position: 8.5 mm) 26.5 mm
    L 11.2 mm
    M 8.6 mm
    N (Taper seat, Half thread)17.5 mm
    V (Tapered seat) 25.0 mm
    None 9.5 mm 11.2 mm 19.0 mm 21.5 mm
    None (Tapered seat) 8.3 mm 11.2 mm
    XR

    PR

    		 Shape (Type)
    A Double ground electrodes
    A Sland G.E. (For racing)
    AY Double ground electrodes with bent shape (special)
    B Triple ground electrodes
    BG Triple G.E. (shrouded)
    D Quadruple G.E. Projected (2.0 mm projection) Projected (1.5 mm projection, spark position 3.5 mm)
    E Shroud: 25
    K Projected(1 mm projection)
    LM Compact type (Hex Size: 20.6 mm)
    M Shortened insulator head length
    M Compact type (Hex Size 19.0 mm)
    P Projected (1.5 mm projection)
    R With resistor
    S Non-projected (0mm projection)Single iridium
    T Double ground electrodes
    TM Double ground electrodes
    TN Double ground electrodes
    V Slant ground electrodes
    X Full projected(2.5 mm Projection)
    -U

    -A

    		 Shape (Type)
    -A Specialty Specification
    -B Specialty Specification
    -C Cut-back G.E
    -E Specialty Specification
    -F Specialty Specification
    -G Grease applied on to threads, for CNG applications
    -GL Platinum C.E.
    -L Heat resistant G.E. Thin center electrode 3.5 mm projected insulator for motorcycles Retracted insulator formotorcycles
    -M Larger G.E.
    -N For Yamaha and Kawasaki
    -P A double layer of platinum G.E. Single platinum
    -R 10K ohm resister plug
    -S Semi-surface gap discharge type
    -S Stainless gasket
    -TP Taper-cut, single platinum plug
    -U U-Groove G.E
    -US Star-shaped C.E
    -V 1.3 mm diameter, nickel C.E.
    -Z Taper cut
    -ZU ZU plug
    11

    11

    		 Reach
    A 19.0 mm (Electrode Position: 7 mm) 21.5mm
    B 19.0 mm (Electrode Position: 9.5 mm)
    C 19.0 mm (Electrode Position: 5.0 mm)
    D 19.0 mm (Shroud 2)
    E (With Gasket) 19.0 mm 20.0 mm
    E (Tapered Seat) 19.0 mm
    F 12.7 mm
    FE 19.0 mm (Half thread)
    G 19.0 mm (Shroud 2.8) 19.0 mm (Shroud 3.0)
    H 19.0 mm (Electrode position: 8.5 mm) 26.5 mm
    L 11.2 mm
    M 8.6 mm
    N (Taper seat, Half thread) 17.5 mm
    V (Tapered seat) 25.0 mm
    None 9.5 mm 11.2 mm 19.0 mm 21.5 mm
    None (Tapered seat) 8.3 mm 11.2 mm<
    I Plug Type
    A Double ground electrodes
    A Sland G.E. (For racing)
    AY Double ground electrodes with bent shape (special)
    B Triple ground electrodes
    BG Triple G.E. (shrouded)
    D Quadruple G.E. Projected (2.0 mm projection) Projected (1.5 mm projection, spark position 3.5 mm)
    E Shroud: 25
    K Projected (1 mm projection)
    LM Compact type (Hex Size: 20.6 mm)
    M Shortened insulator head length
    M Compact type (Hex Size 19.0 mm)
    P Projected (1.5 mm projection)
    R With resistor
    S Non-projected (0mm projection) Single iridium
    T Double ground electrodes
    TM Double ground electrodes
    TN Double ground electrodes
    V Slant ground electrodes
    X Full projected (2.5 mm Projection)
    U Thread Diameter and Hex Size
    -A Specialty Specification
    -B Specialty Specification
    -C Cut-back G.E
    -E Specialty Specification
    -F Specialty Specification
    -G Grease applied on to threads, for CNG applications
    -GL Platinum C.E.
    -L Heat resistant G.E. Thin center electrode 3.5 mm projected insulator for motorcycles Retracted insulator for motorcycles
    -M Larger G.E.
    -N For Yamaha and Kawasaki
    -P A double layer of platinum G.E. Single platinum
    -R 10K ohm resister plug
    -S Semi-surface gap discharge type
    -S Stainless gasket
    -TP Taper-cut, single platinum plug
    -U U-Groove G.E.
    -US Star-shaped C.E.
    -V 1.3 mm diameter, nickel C.E.
    -Z Taper cut
    -ZU ZU plug
    27    Heat Range
    Denso NGK Champion Bosch
    16
    20
    22
    24
    27
    29
    31
    32
    34
    35    		 12, 11
    10, 9
    8, 7
    6, 63, 61
    4, 59
    57
    55
    53    		 5
    6
    7
    8
    9
    9.5
    10
    10.5
    11
    11.5    		 10
    9
    8
    7, 6
    5
    4
    3
    2
    A Special Design
    A Slant electrode, No U-Groove, No taper cut
    B Projected insulator (1.5mm)
    C No U-Groove
    D No U-Groove, Inconel ground electrode
    ES Stainless steel gasket
    F Special
    G Stainless steel gasket
    J Spark position: 5 mm
    K Spark position: 4 mm
    L Spark position: 5 mm
    M Spark position: 4 mm, for LPG applications
    T For LPG applications
    Y 0.8 mm gap
    Z Taper cut
    TT Twin-Tip