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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.

        or

        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

        SType of precious metal
        FCenter: 0.55 mm diameter iridium. Ground electrode: 0.7 mm diameter platinum
        PPlatinum plug
        S0.7 mm diameter iridium
        SV0.4 mm diameter iridium
        Z0.55 mm diameter iridium
        W

        K

        		Thread Diameter and Hex Size
        C12×14.0
        L18×22.2 (Reach: 12 mm)
        M18×25.4 (Reach: 12 mm)
        MA18×20.6 (Tapered seat, Reach: 12 mm)
        MW18×20.6 (Reach: 12 mm)
        J14×20.6 (Projected plug)
        K14×16.0 (ISO Small Hex plug)
        KJ14×16.0 (ISO Projected Small Hex plug)
        LP14×20.6 (Plug for LPG applications)
        N10x 16.0
        Q14×16.0 (Small Hex plug)
        QJ14×16.0 (Projected Small Hex plug)
        QL14×20.6 (Small Hex long housing plug)
        S14×20.6 (Surface gap or Rotary)
        T14×16.0 (Tapered seat)
        TR14×20.6 (For marine applications)
        W14×20.6, 14×19.0 (Compact type)
        X12×18.0
        XE12×14.0
        XU12×16.0
        U10×16.0
        Y8×13.0
        Z1/2PFx23.8
        16

        20

        		Heat Range
        DensoNGKChampionBosch
        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

         

         

         

         

        EReach
        A19.0 mm (Electrode Position: 7 mm) 21.5mm
        B19.0 mm (Electrode Position: 9.5 mm)
        C19.0 mm (Electrode Position: 5.0 mm)
        D19.0 mm (Shroud 2)
        E(With Gasket) 19.0 mm 20.0 mm
        E(Tapered Seat) 19.0 mm
        F12.7 mm
        FE19.0 mm (Half thread)
        G19.0 mm (Shroud 2.8) 19.0 mm (Shroud 3.0)
        H19.0 mm (Electrode position: 8.5 mm) 26.5 mm
        L11.2 mm
        M8.6 mm
        N(Taper seat, Half thread)17.5 mm
        V(Tapered seat) 25.0 mm
        None9.5 mm 11.2 mm 19.0 mm 21.5 mm
        None(Tapered seat) 8.3 mm 11.2 mm
        XR

        PR

        		Shape (Type)
        ADouble ground electrodes
        ASland G.E. (For racing)
        AYDouble ground electrodes with bent shape (special)
        BTriple ground electrodes
        BGTriple G.E. (shrouded)
        DQuadruple G.E. Projected (2.0 mm projection) Projected (1.5 mm projection, spark position 3.5 mm)
        EShroud: 25
        KProjected(1 mm projection)
        LMCompact type (Hex Size: 20.6 mm)
        MShortened insulator head length
        MCompact type (Hex Size 19.0 mm)
        PProjected (1.5 mm projection)
        RWith resistor
        SNon-projected (0mm projection)Single iridium
        TDouble ground electrodes
        TMDouble ground electrodes
        TNDouble ground electrodes
        VSlant ground electrodes
        XFull projected(2.5 mm Projection)
        -U

        -A

        		Shape (Type)
        -ASpecialty Specification
        -BSpecialty Specification
        -CCut-back G.E
        -ESpecialty Specification
        -FSpecialty Specification
        -GGrease applied on to threads, for CNG applications
        -GLPlatinum C.E.
        -LHeat resistant G.E. Thin center electrode 3.5 mm projected insulator for motorcycles Retracted insulator formotorcycles
        -MLarger G.E.
        -NFor Yamaha and Kawasaki
        -PA double layer of platinum G.E. Single platinum
        -R10K ohm resister plug
        -SSemi-surface gap discharge type
        -SStainless gasket
        -TPTaper-cut, single platinum plug
        -UU-Groove G.E
        -USStar-shaped C.E
        -V1.3 mm diameter, nickel C.E.
        -ZTaper cut
        -ZUZU plug
        11

        11

        		Reach
        A19.0 mm (Electrode Position: 7 mm) 21.5mm
        B19.0 mm (Electrode Position: 9.5 mm)
        C19.0 mm (Electrode Position: 5.0 mm)
        D19.0 mm (Shroud 2)
        E(With Gasket) 19.0 mm 20.0 mm
        E(Tapered Seat) 19.0 mm
        F12.7 mm
        FE19.0 mm (Half thread)
        G19.0 mm (Shroud 2.8) 19.0 mm (Shroud 3.0)
        H19.0 mm (Electrode position: 8.5 mm) 26.5 mm
        L11.2 mm
        M8.6 mm
        N(Taper seat, Half thread) 17.5 mm
        V(Tapered seat) 25.0 mm
        None9.5 mm 11.2 mm 19.0 mm 21.5 mm
        None(Tapered seat) 8.3 mm 11.2 mm<
        IPlug Type
        ADouble ground electrodes
        ASland G.E. (For racing)
        AYDouble ground electrodes with bent shape (special)
        BTriple ground electrodes
        BGTriple G.E. (shrouded)
        DQuadruple G.E. Projected (2.0 mm projection) Projected (1.5 mm projection, spark position 3.5 mm)
        EShroud: 25
        KProjected (1 mm projection)
        LMCompact type (Hex Size: 20.6 mm)
        MShortened insulator head length
        MCompact type (Hex Size 19.0 mm)
        PProjected (1.5 mm projection)
        RWith resistor
        SNon-projected (0mm projection) Single iridium
        TDouble ground electrodes
        TMDouble ground electrodes
        TNDouble ground electrodes
        VSlant ground electrodes
        XFull projected (2.5 mm Projection)
        UThread Diameter and Hex Size
        -ASpecialty Specification
        -BSpecialty Specification
        -CCut-back G.E
        -ESpecialty Specification
        -FSpecialty Specification
        -GGrease applied on to threads, for CNG applications
        -GLPlatinum C.E.
        -LHeat resistant G.E. Thin center electrode 3.5 mm projected insulator for motorcycles Retracted insulator for motorcycles
        -MLarger G.E.
        -NFor Yamaha and Kawasaki
        -PA double layer of platinum G.E. Single platinum
        -R10K ohm resister plug
        -SSemi-surface gap discharge type
        -SStainless gasket
        -TPTaper-cut, single platinum plug
        -UU-Groove G.E.
        -USStar-shaped C.E.
        -V1.3 mm diameter, nickel C.E.
        -ZTaper cut
        -ZUZU plug
        27  Heat Range
        DensoNGKChampionBosch
        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
        ASpecial Design
        ASlant electrode, No U-Groove, No taper cut
        BProjected insulator (1.5mm)
        CNo U-Groove
        DNo U-Groove, Inconel ground electrode
        ESStainless steel gasket
        FSpecial
        GStainless steel gasket
        JSpark position: 5 mm
        KSpark position: 4 mm
        LSpark position: 5 mm
        MSpark position: 4 mm, for LPG applications
        TFor LPG applications
        Y0.8 mm gap
        ZTaper cut
        TTTwin-Tip