LFR5A-11 BLYB; 14 Millimeter Thread Size; 26.5 Millimeter Reach; 0.044 Inch Pre Gap Size; 5/8 Inch Hex; Nickel Ground Electrode Core; Copper Center Electrode; Nickel Center Electrode Tip; Flat Seat; 5000 Ohm Resistance; For Use With 2000 Mariner/ 2006-2000 Mercury/ 2005-1999 Yamaha Outboard Engines