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⚡ Ignite your drive with NGK Iridium IX – where precision meets power!
The NGK TR5IX Iridium IX Spark Plug (4-pack) is engineered for performance enthusiasts seeking extreme ignitability and durability. Featuring a 0.6mm laser-welded Iridium tip, tapered ground electrode, and triple gasket seal, it ensures stable sparks, improved throttle response, and prevents fouling and combustion gas leaks. Its high melting point alloy and anti-corrosion plating make it ideal for high-performance engines, delivering reliable, long-lasting ignition.
| ASIN | B00L3XGGDS |
| Automotive Fit Type | Vehicle Specific Fit |
| Best Sellers Rank | 510,263 in Automotive ( See Top 100 in Automotive ) 2,007 in Car Spark Plugs |
| Brand | NGK |
| Brand Name | NGK |
| Compatible with Vehicle Type | Car |
| Core Material | Iridium |
| Core material | Iridium |
| Customer Reviews | 4.7 out of 5 stars 774 Reviews |
| Global Trade Identification Number | 00087295073971 |
| Item Weight | 0.15 Pounds |
| Manufacturer | NGK |
| Manufacturer Part Number | 8M0046007 |
| Model Number | 7397-4PK |
| OEM Equivalent Part Number | TR5IX |
| Thread Size | M14x1.25 |
| Thread size | M14x1.25 |
| Top Material Type | Metal |
| Top material type | Metal |
| UPC | 087295073971 |
| Unit Count | 4.0 count |
| Vehicle service type | Car |
E**S
Works as expected 2005 Chevy Silverado 5.3L
This is a review for : NGK (7397-4PK) TR5IX Iridium IX Spark Plug, (Box of 4) I installed these today to replace the original factory AC Delco platinum plugs that have 164K miles on them. This is for a 2005 Chevy Silverado 5.3L. The plugs fit and were easy enough to install. I did check the gap to be sure they were all 0.40. Not one was missing or broken. I applied the anti seize lubricant. I then hand tightened using this: GearWrench 80546 5/8-Inch x 6-Inch Swivel Spark Plug Socket Actually used it to remove the old plugs too. I used a torque wrench to 10 foot-pounds (range is 7-14.5 foot pounds for these). I used some Taylor wires which look nice the the jury is out due to fit and degree of difficulty to get those on. Time will tell if these will last. Since my factory plugs were still running fine with absolutely no carbon build up (no need to soak in PB Blaster as I had feared), it was really easy to get those off. The truck idled nicely then and about the same with these. The real test will be in two weeks when I drag my 6000 pound travel trailer out of storage and go camping. If anything changes for the worse, I'll update. If these continue to run fine, then I won't. NGK packages these in the individual boxes and all four into bigger box. But a nice touch is a small cardboard tube going over the threads to protect them from possible damage in shipping. Never seen that before. nice.
L**.
Les bougies iridium pour 100 000KM
Un super produit NGK qualité japon... Les bougies iridium sont les seules modèles conçues pour un kilométrage élevé, avec une consommation réduite.
S**H
Less Expensive Than Parts Store
Good NGK product, great for Chevy trucks. These would cost almost double what I paid had I bought them at a parts store.
R**N
Great product, fast and best price!!
I heard about NGK spark plugs fakes being sold on Amazon but these are the real thing.
G**A
Great Value
Bought them for my 2005 Camry, works great, price was good and it shipped in time.
Trustpilot
4 days ago
2 weeks ago