NGK IZFR5J Spark PlugNGK Laser Iridium spark plugs offer the best combination of performance and longevity. The iridium tipped center electrode provides durability six times harder than platinum. NGK's high-grade pure alumina ceramic and 98% pure copper core prevents the spark plug from overheating while providing reliable starts. Laser iridium plugs are tested to the highest standards to ensure quality and durability. Actual OE or equivalent replacement spark plug. Part Number: IZFR5J; Stock Number: 5899; Resistance (Ohm): 5000; Ground configuration: Standard; Ground electrode core material: Nickel; Center electrode core material: Copper; Center electrode tip material: Iridium; Fits 2006 Mercury Outboards, 2007 Nissan OutboardsCheck your engine and maintenance manual for the correct spark plug and only use as recommended by your engine's original equipment manufacturer. Using the wrong plug can reducing optimum performance, reduce fuel economy or cause damage to your engine. Replaces Quicksilver / Mercury 33-892567Q