4548 19 mm Spark Plugs

Features NGK spark plugs are designed to operate over a much wider heat range than ordinary plugs They resist carbon buildup and pre-ignition Each features high alumina ceramics for better heat transfer and electrical insulation A patented triple gasket sealing process eliminates the possibility of combustion gas leakage And a longer insulator nose prevents fouling and misfiring A solid copper core and its nickel tipped electrode provide a longer plus life Specifications Thread Size: 19 mm Material: Nickel Dimension: 1.77" H x 0.79" W x 0.88" L Weight: 1.77 lbs