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⚡ 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, enhanced throttle response, and superior durability. Featuring a laser-welded 0.6mm Iridium tip, tapered ground electrode, and triple gasket seal, it prevents fouling, flashover, and combustion gas leaks. Its high melting point Iridium alloy and trivalent metal plating ensure exceptional heat resistance and corrosion protection, making it ideal for modern high-performance engines.
| ASIN | B00L3XGGDS |
| Assembly Required | No |
| Automotive Fit Type | Universal Fit |
| Brand | NGK |
| Core Material | Iridium |
| Country of Origin | USA |
| Customer Reviews | 4.7 4.7 out of 5 stars (771) |
| Date First Available | 25 September 2014 |
| Global Trade Identification Number | 00087295073971 |
| Item Dimensions LxWxH | 10.4 x 8.9 x 2.5 Centimeters |
| Item Weight | 68 g |
| Item model number | 7397-4PK |
| Manufacturer | NGK |
| Manufacturer Part Number | 8M0046007 |
| Model | 7397-4PK |
| Net Quantity | 4.0 Count |
| OEM Part Number | TR5IX |
| Position | Front, Rear |
| Product Dimensions | 10.41 x 8.89 x 2.54 cm; 68.04 g |
| Thread Size | Thread diameter: 14 mm, Thread length: 17.5 mm |
| Top Material Type | Alloy Steel |
| UPC | 087295073971 |
| Vehicle Service Type | Car |
A**R
Found the ones I needed on Amazon at a decent price. Brand is highly recommended. Don't know how much overall performance improvement I'm getting but it's good to know I have one of the best plugs available. They were installed in a 2010 Ford Escape with leaky valve cover gaskets. Replaced the gaskets and I should have peace of mind for many years. Free delivery definitely made a difference in buying from Amazon rather than from other on-line sellers.
E**S
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.
S**H
Good NGK product, great for Chevy trucks. These would cost almost double what I paid had I bought them at a parts store.
A**E
All 8 were at .035-.037. Adjusted to .04 and runs great with new wires and coils
G**A
Bought them for my 2005 Camry, works great, price was good and it shipped in time.
Trustpilot
5 days ago
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