


⚡ Ignite your drive with NGK Iridium IX – where precision meets power!
The NGK 7397 TR5IX Iridium IX Spark Plug pack of 4 is engineered for performance enthusiasts seeking extreme ignitability and durability. Featuring a laser-welded 0.6mm Iridium tip, tapered ground electrode, and triple gasket seal, it ensures stable sparks, improved throttle response, and prevents combustion gas leakage. Its high melting point alloy and advanced plating provide superior resistance to heat, wear, corrosion, and fouling—ideal for today's high-performance vehicles.














| Brand | Generic Unbranded |
| Core Material | Iridium |
| Thread Size | Thread diameter: 14 mm, Thread length: 17.5 mm |
| Top Material Type | Alloy Steel |
| Vehicle Service Type | Car |
| Global Trade Identification Number | 00087295073971 |
| UPC | 087295073971 |
| OEM Part Number | TR5IX |
| Manufacturer | NGK |
| Model | 7397-4PK |
| Product Dimensions | 10.41 x 8.89 x 2.54 cm; 68.04 g |
| Item model number | 7397-4PK |
| Manufacturer Part Number | 8M0046007 |
| Position | Front, Rear |
| Assembly Required | No |
| Manufacturer | NGK |
| Country of Origin | USA |
| Item Weight | 68 g |
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