NGK 7214 GR5IX Iridium IX Spark Plug 14mm Thread 0.750 in Reach Heat Range 5

The NGK 7214 (GR5IX) Iridium IX spark plug is a fine-wire iridium performance spark plug for drivers who want strong acceleration, efficient combustion and long service life. Its 0.6mm iridium center electrode gives a consistent, stable spark. Iridium is much harder than platinum and has a very high melting point, so the electrode stays durable in demanding engines.

Key Features:

• Fine-wire 0.6mm iridium center electrode with a copper core for durability and a stable spark
• Taper-cut ground electrode gives more area for flame expansion, which improves starting, idling and throttle response
• Trivalent metal plating resists corrosion and seizing, which makes installation and removal easier
• Resistor design helps suppress radio frequency interference
• Factory pre-set gap of 1.0 mm (0.040 in)

Specifications:

• NGK stock number: 7214
• NGK part number: GR5IX
• Series: Iridium IX
• Heat range: 5
• Thread size: 14mm (M14 x 1.25)
• Reach: 0.750 in (19mm)
• Hex size: 13/16 in
• Seat type: Gasket (crush washer)
• Resistor: Yes (5,000 ohms)
• Center electrode: Iridium tip, copper core
• Ground electrode: Nickel alloy, taper cut
• Terminal: Non-removable nut
• UPC: 087295172148

Cross-references: Autolite XP646, Bosch 4478, DENSO IW16.

NGK has been an original equipment supplier of spark plugs for domestic and import vehicles for decades. The Iridium IX gives an OE-quality replacement or a performance upgrade, with reliable ignition and good anti-fouling.