---
product_id: 3923740
title: "4469 Iridium IX Spark Plugs LFR5AIX11 (6 Pack)"
brand: "ngk"
price: "€ 90.62"
currency: EUR
in_stock: true
reviews_count: 13
category: "Ngk"
url: https://www.desertcart.fi/products/3923740-4469-iridium-ix-spark-plugs-lfr5aix11-6-pack
store_origin: FI
region: Finland
---

# Up to 50,000 miles long-life durability Iridium fine-wire electrode for max spark Optimized for fuel-injected & turbo engines 4469 Iridium IX Spark Plugs LFR5AIX11 (6 Pack)

**Brand:** ngk
**Price:** € 90.62
**Availability:** ✅ In Stock

## Summary

> ⚡ Ignite your engine’s true potential with NGK Iridium IX Spark Plugs!

## Quick Answers

- **What is this?** 4469 Iridium IX Spark Plugs LFR5AIX11 (6 Pack) by ngk
- **How much does it cost?** € 90.62 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/products/3923740-4469-iridium-ix-spark-plugs-lfr5aix11-6-pack)

## 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

- • **Enduring Longevity:** Drive worry-free up to 50,000 miles with spark plugs designed to outlast standard OEM parts, saving you time and money.
- • **Turbo & Fuel-Injected Ready:** Specifically crafted to optimize power and torque in modern turbocharged and fuel-injected engines.
- • **Precision Laser-Cut Electrode:** Experience unmatched ignition efficiency with NGK’s fine-wire iridium center electrode, engineered for peak performance.
- • **Seamless Engine Compatibility:** Perfect fit for a wide range of popular models from Nissan, Toyota, Hyundai, Kia, and Infiniti—upgrade your ride with confidence.
- • **Smooth Starts & Consistent Throttle:** Enjoy quicker starts, smoother idling, and responsive acceleration that keeps you ahead in every drive.

## Overview

The NGK 4469 Iridium IX Spark Plugs (6 Pack) deliver extreme performance upgrades with a fine-wire iridium center electrode and nickel-alloy ground electrodes. Designed for fuel-injected and turbo engines, these plugs offer precision laser-cut construction and a long lifespan of up to 50,000 miles. Compatible with a broad range of vehicles, they ensure smoother starts, improved throttle response, and reliable durability for professional-grade engine performance.

## Description

Part Number: LFR5AIX-11 Stock Number: 4469 Material Grade: Iridium Resistance (Ohms): 5000.0 Ground Electrode Tip Design: Taper Cut Ground Configuration: J-Gap Ground Electrode Core Material: Nickel Washer Included: Yes Grade Type: Performance Electrical Terminal Type: Non-Removable Nut Center Electrode Core Material: Copper Center Electrode Tip Material: Iridium Pre-Gap Size (IN): .044 Pre-Gap Size (MM): 1.1 Ground Electrode Quantity: 1 Hex Size: 5/8" (16mm) Insulator Height (IN): 1.99 Insulator Height (MM): 50.5 Manufacturer Heat Range: 5 Seat Type: Flat Reach (IN): 1.043 Reach (MM): 26.5 Thread Diameter (IN): 0.551 Thread Diameter (MM): 14.0 Insulator Material: Ceramic Resistor Type: Yes Ground Electrode Tip Material: Nickel Skirt: No Center Electrode Insulator Tip Projection (IN): 0.14 Center Electrode Insulator Tip Projection (MM): 3.5 Center Electrode Design: Fine Wire Washer Type: Crush Center Electrode Projection: Mid Projection Compatible with Hyundai Genesis 2009 3.8L 6cyl Build Date Before 5/1/2008; Gap 0.044"Santa Fe 2007-2009 2.7L 6cyl Gap 0.044"Compatible with INFINITI FX35 2003-2008 3.5L 6cyl Gap 0.044"G35 2003-2007 3.5L 6cyl Gap 0.044"I35 2002-2004 3.5L 6cyl Gap 0.044"M35 2006-2008 3.5L 6cyl Gap 0.044"QX4 2001-2003 3.5L 6cyl Gap 0.044"Compatible with Kia Borrego 2009 3.8L 6cyl To 5/15/2008; Gap 0.044"Magentis 2007-2010 2.7L 6cyl Gap 0.044"Optima 2006-2010 2.7L 6cyl VIN (4); Gap 0.044"Rondo 2007-2012 2.7L 6cyl Gap 0.044"Compatible with Nissan 350Z 2003-2006 3.5L 6cyl Gap 0.044"Altima 2002-2006 3.5L 6cyl Gap 0.044"Frontier 2005-2019 4L 6cyl Gap 0.044"Maxima 2002-2008 3.5L 6cyl Gap 0.044"Murano 2003-2007 3.5L 6cyl Gap 0.044"NV1500 2012-2021 4L 6cyl Gap 0.044"NV2500 2012-2021 4L 6cyl Gap 0.044"NV3500 2012-2021 4L 6cyl Gap 0.044"Pathfinder 2001-2004 3.5L 6cyl Gap 0.044"Pathfinder 2005-2012 4L 6cyl Gap 0.044"Quest 2004-2009 3.5L 6cyl Gap 0.044"Xterra 2005-2015 4L 6cyl Gap 0.044"Compatible with Suzuki Equator 2009-2012 4L 6cyl Gap 0.044"Compatible with Toyota 4Runner 2013-2024 4L 6cyl From 6/2013; Gap 0.044"FJ Cruiser 2013-2014 4L 6cyl From 6/2013; Gap 0.044"Tundra 2013-2014 4L 6cyl From 6/2013; Gap 0.044"

Review: Reliable long-life plugs for my 2013 Xterra - I installed this 6 pack of NGK Iridium IX LFR5AIX-11 plugs in my 2013 Xterra a few years ago and they have been working great ever since. The truck starts quickly, idles smoother, and the throttle response feels more consistent than it did with the worn factory plugs. The plugs arrived well packaged and all looked clean and correctly made. I still checked the gap on each one before install and torqued them to spec. Since then I have had no misfires, no check engine lights, and no weird cold start issues. For the price, the durability has been the best part. I do a mix of city driving and highway trips and they have held up without any drama. If your vehicle calls for this exact plug, I would buy them again. Just make sure you confirm fitment for your engine before ordering.
Review: Very good quality! - Good quality sparks plugs. Now they have more than two years and 20'000miles, no problems at all. They still looks brand new. Very happy!

## Features

- Extreme performance upgrade via OEM spark plugs and provide a lifetime at 40,000 50,000 miles.
- Plugs have a fine-wire Iridium center electrode and nickel-alloy terrain electrodes for maximum engine and torque.
- Designed for fuel-injected and turbo engines.
- Precision laser electrode construction.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00330AMYS |
| Automotive Fit Type | Vehicle Specific Fit |
| Best Sellers Rank | #52,176 in Automotive ( See Top 100 in Automotive ) #332 in Automotive Replacement Spark Plugs |
| Brand | NGK |
| Core Material | Iridium |
| Customer Reviews | 4.6 4.6 out of 5 stars (2,924) |
| Date First Available | January 6, 2010 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 0.01 ounces |
| Item model number | 4469 |
| Manufacturer | NGK |
| Manufacturer Part Number | 4469 LFR5AIX-11 |
| Model | 6 pack NGK Iridium IX 4469 Spark Plug |
| Position | Front, Rear |
| Product Dimensions | 3.7 x 0.94 x 4.98 inches |
| Thread Size | 14mm-1.25mm |
| Top Material Type | Nickel |
| UPC | 087295644690 087295044698 |
| Vehicle Service Type | Car, Truck |

## Product Details

- **Brand:** NGK
- **Core Material:** Iridium
- **Thread Size:** 14mm-1.25mm
- **Top Material Type:** Nickel
- **Vehicle Service Type:** Car, Truck

## Images

![4469 Iridium IX Spark Plugs LFR5AIX11 (6 Pack) - Image 1](https://m.media-amazon.com/images/I/61xJBqjHXfL.jpg)

## Questions & Answers

**Q: Has anyone upgrade from platinum to iridium for a Yamaha F225 4 stroke outboard engine? If you have, I'd like to hear comments regarding the change.**
A: I ‘ve been running the iridium plugs in my 2008 Yamaha F225-TXR for three years as I use my bout around 400-500 hours a year, and did not want to have to change plugs every 100hr. I have ran them as many as 250 hr between spark plug changes. If you buy on line you have to make sure they are genuine NGK Spark Plug, cause I bought 1-set of Plug where the boxes looked just like the Official NGK Plug box but they were not!  When I changed them out the electrodes were gone. I noticed a big difference when I switched to Iridium plugs the motor runs so smooth that at idle you can’t hear the motor running. You can call NGK and they will cross reference the factory plug to there Iridium plug for your application.

**Q: does this item fits nissan teana 2003 and nissan xtrail 2001?**
A: In some regions of the world, the Nissan Teana is also referred to as the Nissan Maxima and in relation to your question my mechanic has advised that YES, these plugs would also fit both the Teana and xtrail.  They are also referred to as long-range plugs.

**Q: would these fit a ram rebel 2018?? i need 16 don't you sell individually?**
A: NGK 4469 will fit 2018 RAM 1500 5.7L V8. Please use this link for set of 8 (you will need to get 2 sets for 16 plugs)
 https://www.amazon.com/NGK-LFR5AIX-11-Iridium-Spark-Plug/dp/B01M21CUQA/ref=sr_1_1?dchild=1&keywords=ngk+4469&m=AQNXXK6F2T8SN&qid=1629780442&s=merchant-items&sr=1-1

Also you can use official NGK Website (link below) to verify the application
https://ngksparkplugs.com/en/part-finder

**Q: are these pre gapped?**
A: NEVER gap iridium or platinum plugs with a normal gap tool. never apply pressure to the central electrode. They should be pre-gapped to .044 in (1.1mm).

## Customer Reviews

### ⭐⭐⭐⭐⭐ Reliable long-life plugs for my 2013 Xterra
*by S***I on January 15, 2026*

I installed this 6 pack of NGK Iridium IX LFR5AIX-11 plugs in my 2013 Xterra a few years ago and they have been working great ever since. The truck starts quickly, idles smoother, and the throttle response feels more consistent than it did with the worn factory plugs. The plugs arrived well packaged and all looked clean and correctly made. I still checked the gap on each one before install and torqued them to spec. Since then I have had no misfires, no check engine lights, and no weird cold start issues. For the price, the durability has been the best part. I do a mix of city driving and highway trips and they have held up without any drama. If your vehicle calls for this exact plug, I would buy them again. Just make sure you confirm fitment for your engine before ordering.

### ⭐⭐⭐⭐⭐ Very good quality!
*by P***D on December 28, 2025*

Good quality sparks plugs. Now they have more than two years and 20'000miles, no problems at all. They still looks brand new. Very happy!

### ⭐⭐⭐⭐⭐ good price
*by C***N on October 21, 2025*

good price and work great

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- 6 New NGK Iridium IX Spark Plugs LFR5AIX-11 # 4469
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*Product available on Desertcart Finland*
*Store origin: FI*
*Last updated: 2026-02-12*