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The NGK 5899 Laser Iridium Spark Plug (IZFR5J) is built to provide precise ignition, extended durability, and efficient combustion in today’s advanced engines. With a fine-wire iridium center electrode and platinum-tipped ground electrode, it delivers superior performance, smoother acceleration, and longer service intervals—perfect for OE replacement in fuel-efficient vehicles.
🔧 Iridium center electrode offers exceptional longevity and spark strength
🔧 Platinum ground electrode enhances wear resistance and stable ignition
🔧 Supports better fuel economy and lower emissions
🔧 Pre-gapped for fast, accurate OE-style installation
Brand & Part Number: NGK 5899 (IZFR5J)
Material: Iridium Center / Platinum Ground
Thread Size: 14mm
Reach: 19mm (0.75 in)
Hex Size: 5/8 in (16mm)
Heat Range: 5
Seat Type: Gasket
Resistor: Yes
Gap: 1.1mm (0.043 in)
Choose NGK IZFR5J Laser Iridium for dependable ignition, fuel efficiency, and long plug life in modern engines—order now!