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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.

    Iridium Power® Spark Plug Specifications

    NUMBER STOCK NO. THREAD DIAMETER (mm) THREAD REACH (mm) HEX SIZE (in) GAP (mm) INSULATOR PROJECTION (mm) IK16#4 5303 14 19 5/8 1.1 1.5 IK20#4 5304 14 19 5/8 1.1 1.5 IK22#4 5310 14 19 5/8 0.8 1.5 IK22G#4 5348 14 19 5/8 0.8 1.5 IK24#4 5311 14 19 5/8 0.8 1.5 IK27#4 5312...