---
product_id: 543970734
title: "(4589) IFR6T-11 Laser Iridium Spark Plug (8 Pack)"
brand: "ngk"
price: "฿13572"
currency: THB
in_stock: true
reviews_count: 5
category: "Ngk"
url: https://www.desertcart.co.th/products/543970734-4589-ifr6t-11-laser-iridium-spark-plug-8-pack
store_origin: TH
region: Thailand
---

# Long-lasting durability up to 60,000+ miles Laser Iridium tech for max spark efficiency Optimized for smooth engine performance (4589) IFR6T-11 Laser Iridium Spark Plug (8 Pack)

**Brand:** ngk
**Price:** ฿13572
**Availability:** ✅ In Stock

## Summary

> ⚡ Ignite your drive with NGK’s cutting-edge spark plugs!

## Quick Answers

- **What is this?** (4589) IFR6T-11 Laser Iridium Spark Plug (8 Pack) by ngk
- **How much does it cost?** ฿13572 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/543970734-4589-ifr6t-11-laser-iridium-spark-plug-8-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

- • **Extended Lifespan:** Engineered to last significantly longer than standard plugs
- • **Fuel Efficiency Boost:** Enhances combustion for improved gas mileage
- • **Effortless Installation:** Designed for quick, hassle-free replacement
- • **Factory-Recommended Fit:** Seamlessly compatible with Lexus and other premium models
- • **Precision Laser Iridium Tip:** Delivers superior ignition for peak engine power

## Overview

The NGK (4589) IFR6T-11 Laser Iridium Spark Plug 8-pack offers advanced laser-welded iridium tips that ensure superior ignition and smoother engine performance. Trusted by mechanics and factory-recommended for Lexus models, these plugs provide long-lasting durability and improved fuel efficiency, making them a smart upgrade for any performance-conscious driver.

## Description

NGK (4589) IFR6T-11 Laser Iridium Spark Plug (8 Pack)

Review: Works great on 01 Lexus GS430. Engine runs smoother now.
Review: Mechanic at Lexus who installed them was blown away by the price! The perfect spark plugs for my 2008 GX470, very high end. The mechanic said they would help improve gas mileage a bit, they are exactly what the factory recommends, will last a long time, and they will help smooth out the engine as well. Very easy to install as they authenticated to the engine.

## Features

- Ngk (4589)
- IFR6T-11

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01M97PGOT |
| Best Sellers Rank | #12,086 in Automotive ( See Top 100 in Automotive ) #43 in Automotive Performance Spark Plugs |
| Brand | NGK |
| Customer Reviews | 4.7 4.7 out of 5 stars (73) |
| Date First Available | 12 July 2020 |
| Item Weight | 399 g |
| Item model number | 4589 |
| Manufacturer | NGK |
| Manufacturer Part Number | 4589 |
| Model | 8 pack NGK Laser Iridium 4589 Spark Plug |
| Position | Front, Rear |
| Product Dimensions | 8.41 x 2.39 x 16.87 cm; 399.16 g |

## Product Details

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

## Images

![(4589) IFR6T-11 Laser Iridium Spark Plug (8 Pack) - Image 1](https://m.media-amazon.com/images/I/7196LRQ4qaL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by S***Y on 2 November 2025*

Works great on 01 Lexus GS430. Engine runs smoother now.

### ⭐⭐⭐⭐⭐ Review
*by A***R on 23 September 2025*

Mechanic at Lexus who installed them was blown away by the price! The perfect spark plugs for my 2008 GX470, very high end. The mechanic said they would help improve gas mileage a bit, they are exactly what the factory recommends, will last a long time, and they will help smooth out the engine as well. Very easy to install as they authenticated to the engine.

### ⭐⭐⭐⭐⭐ Review
*by X***D on 16 October 2024*

The NGK (4589) IFR6T-11 Laser Iridium Spark Plugs are a fantastic choice for anyone looking to boost their vehicle’s performance. After installing these in my boat, I immediately noticed smoother idling, quicker starts, and improved throttle response. Overall, these spark plugs deliver high performance and reliability. Highly recommended for any performance enthusiast! 1999 Toyota Epic Lexus V8.

## Frequently Bought Together

- NGK (4589) IFR6T-11 Laser Iridium Spark Plug (8 Pack)
- FEL-PRO VS 50592 R Engine Valve Cover Gasket Set for Toyota Tundra
- Set of 8 Ignition Coil Pack Fits for V8 4.7 4.3 2000 2001 2002 2003 2004 205 2006 2007 2008 2009 Toyota Tundra Sequoia Land Cruiser 4Runner LEXUS LX470 GX470 GS430 LS430 SC430 Replaces UF230 UF493

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**Shop now:** [https://www.desertcart.co.th/products/543970734-4589-ifr6t-11-laser-iridium-spark-plug-8-pack](https://www.desertcart.co.th/products/543970734-4589-ifr6t-11-laser-iridium-spark-plug-8-pack)

---

*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-04-28*