---
product_id: 53929205
title: "8 New NGK Iridium IX Spark Plugs TR55IX # 7164 by NGK"
brand: "ngk"
price: "€ 172.67"
currency: EUR
in_stock: true
url: https://www.desertcart.nl/products/53929205-8-new-ngk-iridium-ix-spark-plugs-tr55ix-7164-by
store_origin: NL
region: Netherlands
---

# Long-lasting durability Iridium IX for superior ignition OEM-grade fit & reliability 8 New NGK Iridium IX Spark Plugs TR55IX # 7164 by NGK

**Brand:** ngk
**Price:** € 172.67
**Availability:** ✅ In Stock

## Summary

> ⚡ Ignite your drive with NGK Iridium IX – where power meets precision!

## Quick Answers

- **What is this?** 8 New NGK Iridium IX Spark Plugs TR55IX # 7164 by NGK by ngk
- **How much does it cost?** € 172.67 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/53929205-8-new-ngk-iridium-ix-spark-plugs-tr55ix-7164-by)

## Best For

- ngk enthusiasts

## Why This Product

- Trusted ngk brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built to Last:** Engineered for exceptional longevity, reducing replacement frequency and maintenance hassle.
- • **OEM Trusted Quality:** World’s largest OEM spark plug supplier ensures perfect fit and reliability for your vehicle.
- • **Seamless Compatibility:** Specifically designed to fit Ford and other compatible engines, ensuring hassle-free installation.
- • **Precision Ignition Power:** Iridium IX technology delivers sharper, more efficient sparks for peak engine performance.
- • **Complete Set for Optimal Performance:** Includes 8 plugs, covering front and rear positions to maintain balanced engine power.

## Overview

This set of 8 NGK Iridium IX TR55IX spark plugs combines OEM-grade quality with advanced iridium technology, delivering superior ignition performance and long-lasting durability. Designed for precise fitment in compatible vehicles, including Ford models, these spark plugs ensure reliable engine efficiency and reduced maintenance intervals.

## Description

8 New NGK Iridium IX Spark Plugs TR55IX # 7164 by NGK

## Features

- Often specified as original equipment, NGK spark plugs are the best combination of performance and longevity.
- Offering the Quality, Reliability and Durability You'd Expect from an OEM Manufacturer
- NGK is the world's largest supplier of OEM spark plugs
- Research Applications Prior to Purchase To Make Sure This OEM Part Fits Your Vehicle, Including Engine, Drivetrain and Quantity Needed.
- This Listing is for 8 Spark Plugs

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | NGK |
| Brand | NGK |
| Product Dimensions | 10.67 x 9.14 x 2.79 cm; 326.59 g |
| Item model number | 7164 |
| Manufacturer part number | 7164 TR55IX |
| OEM Part Number | FORD 1315691 |
| Position | Front, Rear |
| Item Weight | 327 g |

## Product Details

- **Brand:** NGK
- **Core material:** Iridium
- **Thread size:** 14mm
- **Top material type:** Iridium
- **Vehicle service type:** Car

## Images

![8 New NGK Iridium IX Spark Plugs TR55IX # 7164 by NGK - Image 1](https://m.media-amazon.com/images/I/71L9INo8EwL.jpg)
![8 New NGK Iridium IX Spark Plugs TR55IX # 7164 by NGK - Image 2](https://m.media-amazon.com/images/I/71JpM+J1PJL.jpg)
![8 New NGK Iridium IX Spark Plugs TR55IX # 7164 by NGK - Image 3](https://m.media-amazon.com/images/I/61Gr0+1sEvL.jpg)
![8 New NGK Iridium IX Spark Plugs TR55IX # 7164 by NGK - Image 4](https://m.media-amazon.com/images/I/61RgVzsIccL.jpg)
![8 New NGK Iridium IX Spark Plugs TR55IX # 7164 by NGK - Image 5](https://m.media-amazon.com/images/I/514VccQuLEL.jpg)

## Questions & Answers

**Q: Would these work good in a supercharged 04 mustang ?**
A: No. You need a smaller gap like .032 - .035 depending how much boost you got. These are gapped at .059 which would take too much bending to gap it down. NGK says not to change gap more than .008. NGK TR6ix would work better with preset gap at .039

**Q: The NGK TR55IX plugs do not fit a 2002 Tahoe, 5.3l flexfuel.  Must use the TR5IX. Too many places including parts stores are selling the wrong plug.**
A: I don’t know why you think the TR55IX won’t work, just a slightly cooler plug than the TR5IX. In a lot of climates, it would probably help more than hurt.

**Q: What is the gap preset on this plug?**
A: Hi, Set of 8 TR55IX NGK Iridium IX plugs

Gap:  1.5mm
Heat: "5"
Seat:  taper

NOTE: these are very similar to TR5IX, the difference is: TR5IX have 1.0mm gap and TR55IX have 1.5mm gap. They are the same heat rating, length, etc. 

NOT SUITABLE FOR Ford TS50 with alloy heads.

Hope this info will help you make a decision.

**Q: Are these "one piece" spark plugs unlike the three piece design that comes as oem 2005 f150 4.6l?**
A: I installed these plugs in a 2002 Mercury Mountaineer 4.6 liter and they were one piece....easy to install ...make sure you use anti seize compound on the threads...and gap them properly to specs...the motorcraft plugs are prone for breaking off inside the vehicles because they get too hot and become brittle after awhile...and most people dont change them every 40-50,000 miles...definetely recommend the NGK's

## Frequently Bought Together

- NGK 7164 Iridium IX Spark Plugs TR55IX (8 Pack)
- ACDelco Professional 9718Q Spark Plug Wire Set
- ACDelco GM Original Equipment D329A Ignition Distributor Cap , Black

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*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-03-03*