The Niterra 5887 IZFR5G Laser Iridium Spark Plug delivers superior ignition performance and extended service life for modern engines. Engineered by NGK, the world leader in spark plug technology, this premium spark plug features advanced materials and construction designed to maximize efficiency and reliability.
Advanced Electrode Technology:
- Fine-wire iridium tipped center electrode provides durability six times harder than platinum
- Platinum-tipped ground electrode ensures slow wear rate and consistent spark delivery
- Copper core aids in heat removal to prevent overheating
- Pre-gapped to 1.1mm (0.043 inches) for quick OE-spec installation
Performance Benefits:
- Superior ignitability for reliable starts in all conditions
- Stable idle and improved throttle response
- Enhanced fuel efficiency and reduced emissions
- Superior anti-fouling properties for extended maintenance intervals
Premium Construction Features:
- Pure alumina silicate ceramic insulator provides exceptional strength and heat transfer
- Trivalent metal plating delivers superior anti-corrosion and anti-seizing properties
- Corrugated ribs prevent electrical flash-over
- Triple gasket seals prevent combustion gas leakage
- 98% pure copper core for reliable thermal conductivity
Technical Specifications:
- Thread Size: 14mm
- Thread Pitch: 1.25mm
- Thread Reach: 19mm (0.75 inches)
- Hex Size: 5/8 inch (16mm)
- Heat Range: 5
- Seat Type: Gasket (flat seat)
- Tip Configuration: Extra projected
- Resistor: Yes
- Gap: 1.1mm (0.043 inches)
Installation Torque Specifications:
- Cast Iron Heads: 18-25.3 lb-ft
- Aluminum Heads: 18-21.6 lb-ft
Manufactured in Japan to exacting quality standards, the Niterra 5887 spark plug is ideal for automotive, marine, and powersports applications including Mercury outboard engines, Hardin marine engines, Mercury inboard engines, Sea-Doo watercraft, and various automotive vehicles. The NGK brand has built a reputation for world-class quality and innovation since 1936, making it the trusted choice of OE manufacturers and performance enthusiasts worldwide.
