---
product_id: 30527180
title: "(5787-4PK) ILZKR7B-11S Laser Iridium Spark Plug, Box of 4"
brand: "ngk"
price: "₩90524"
currency: KRW
in_stock: true
reviews_count: 8
category: "Ngk"
url: https://www.desertcart.kr/products/30527180-5787-4pk-ilzkr7b-11s-laser-iridium-spark-plug-box-4
store_origin: KR
region: South Korea
---

# Laser welded Iridium tip for max spark Boosts fuel economy & lowers emissions Triple gasket seal stops gas leaks (5787-4PK) ILZKR7B-11S Laser Iridium Spark Plug, Box of 4

**Brand:** ngk
**Price:** ₩90524
**Availability:** ✅ In Stock

## Summary

> ⚡ Ignite your ride with NGK’s laser precision spark plugs!

## Quick Answers

- **What is this?** (5787-4PK) ILZKR7B-11S Laser Iridium Spark Plug, Box of 4 by ngk
- **How much does it cost?** ₩90524 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/30527180-5787-4pk-ilzkr7b-11s-laser-iridium-spark-plug-box-4)

## 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

- • **Advanced Triple Gasket Seal:** Eliminates combustion gas leakage for consistent performance and engine protection.
- • **Platinum Disc Ground Electrode:** Extends spark plug life with superior wear resistance and corrosion protection.
- • **Precision Laser-Welded Iridium Tip:** Experience unmatched durability and a powerful spark that keeps your engine firing flawlessly.
- • **Longer Insulator Nose with Corrugated Ribs:** Prevents carbon buildup and flashover, ensuring reliable starts every time.
- • **Optimized for Faster Starts & Quicker Acceleration:** Feel the difference in throttle response and enjoy improved fuel efficiency with every drive.

## Overview

NGK’s ILZKR7B-11S Laser Iridium Spark Plugs feature a laser-welded iridium center electrode and platinum disc ground electrode for exceptional durability and performance. Designed with a longer insulator nose and triple gasket seal, they prevent carbonization and combustion gas leaks, delivering faster starts, improved acceleration, better fuel economy, and reduced emissions. Compatible with a wide range of vehicles including motorcycles, ATVs, and watercraft, these plugs are engineered for professionals who demand reliability and efficiency.

## Description

Laser Iridium spark plugs provide superior ignitability and long service life. Smallest tip diameter available Iridium / Platinum surfaces ensure slow wear rate providing stable idle, superior anti corrosion, improved fuel efficiency and lower emissions. Laser welded Iridium center electrode tip ensures high durability and greater spark. Platinum disc welded to backside of ground electrode provides long life. Longer insulator nose prevents carbonization, Corrugated ribs on insulator prevents flashover, and the triple gasket seal eliminates combustion gas leakage. Faster starts and quicker acceleration. Better fuel economy and lower emissions, Trivalent Metal Plating for superior anti-corrosion and anti-seizing.

Review: GENUINE NGK PLUGS AT A GREAT PRICE - THESE ARE GENUINE NGK PLUGS. I submitted information to NGK's customer service dept including pictures, production codes, and resistance measurements from the plugs and they confirmed that they are genuine NGK. I have not had a chance to install them yet but I will be soon. If I was not positive that they were genuine I would never take the chance of ruining my engine on a plug coming apart or failing early.
Review: No complaints so far and look to be genuine NGK - No complaints so far. I did inspect them before installing and they look to be genuine NGK spark plugs according to NGK's article "How to identify NGK SPARK PLUGS." The NGKs replaced fake Denso spark plugs from eBay that had worn center electrode tips after only 13k miles (my cheap fault). My worn spark plug gaps ranged from .065" to .073" when they're supposed to be around .044", which the NGKs are pre-gapped to. After installing the NGKs, instantly noticed the increase to normal engine performance. Ordered 2/11/25. Received and installed on my 2012 Acura TSX on 2/12/25.

## Features

- Laser welded Iridium center electrode tip ensures high durability and greater spark
- Platinum disc welded to backside of ground electrode provides long life
- Longer insulator nose prevents carbonization, Corrugated ribs on insulator prevents flashover, and the triple gasket seal eliminates combustion gas leakage
- Faster starts and quicker acceleration
- Better fuel economy and lower emissions, Trivalent Metal Plating for superior anti-corrosion and anti-seizing

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01DMFGRZG |
| Best Sellers Rank | #50,437 in Automotive ( See Top 100 in Automotive ) #327 in Automotive Replacement Spark Plugs |
| Brand | NGK |
| Brand Name | NGK |
| Compatible with Vehicle Type | Watercraft, all-terrain-vehicles, off-road-motorcycles, snowmobiles, street-cruiser-motorcycles, street-motor-scooters, street-sport-motorcycles, street-touring-motorcycles |
| Core Material | Iridium |
| Customer Reviews | 4.5 out of 5 stars 1,031 Reviews |
| Global Trade Identification Number | 00087295057872 |
| Included Components | NGK (5787-4PK) ILZKR7B-11S Laser Iridium Spark Plug, Box of 4 |
| Item Type Name | ILZKR7B-11S Laser Iridium Spark Plug, Box of 4 |
| Item Weight | 0.4 Pounds |
| Manufacturer | NGK |
| Manufacturer Part Number | 5787-4PK |
| Manufacturer Warranty Description | Manufacturer |
| Thread Size | 14mm x 1.25mm |
| Top Material Type | Metal |
| UPC | 087295057872 603996526402 087295457733 |
| Unit Count | 4.0 Count |
| Vehicle Service Type | Watercraft, all-terrain-vehicles, off-road-motorcycles, snowmobiles, street-cruiser-motorcycles, street-motor-scooters, street-sport-motorcycles, street-touring-motorcycles Vehicle Service Type Watercraft, all-terrain-vehicles, off-road-motorcycles, snowmobiles, street-cruiser-motorcycles, street-motor-scooters, street-sport-motorcycles, street-touring-motorcycles See more |

## Product Details

- **Brand:** NGK
- **Core Material:** Iridium
- **Thread Size:** 14mm x 1.25mm
- **Top Material Type:** Metal

## Images

![(5787-4PK) ILZKR7B-11S Laser Iridium Spark Plug, Box of 4 - Image 1](https://m.media-amazon.com/images/I/51IzodVJWCL.jpg)

## Questions & Answers

**Q: Ate these counterfeit??**
A: These spark plugs probably ARE counterfeits (very good fakes). I purchased another set from a national autoparts retailer and NGK dealer to compare against. They are almost identical with the exception of two key differences: 1. One of the individual box panels of the Amazon spark plugs reads "Assembled in Thailand." The box of the legit ones from the brick-and-mortar store reads "Made in Japan." 2. The spark plugs from Amazon are embossed "NGK" on the metal collar right above the washer. The embossing on the ones from the brick-and-mortar store reads "Japan."

Do yourself a favor and purchase quality spark plugs from a legitimate source. By doing so you'll have the assurance you are installing parts that will perform (100K miles for real NGK spark plugs) and won't damage your vehicle.

**Q: Are they already gap?**
A: Yes, iridium plugs are gapped at the factory due to the high potential of scratching the tips when trying to gauge the gaps. If you do want to double check the gaps prior to installation, don't use the coin measuring tool, but one that won't put pressure on the iridium tips.

**Q: Will these fit a 2011 Accord V6?**
A: Yes

**Q: This is original Ngk ?**
A: Mine appeared to be after watching several videos on counterfeits. Then just to be sure,  I called NGK USA customer service and gave them the plug number and lot number.  They confirmed the lot number was valid.  (This was all last year.)

The NGK  person asked me where I had purchased them and i told him Amazon.  He stated that there were currently (again this was 2020)  significant counterfeit issues on ebay purchased NGK Iridium plugs minimal issues on Amazon. 

Safest bet IMHO is to buy them from an auto parts retailer.

## Customer Reviews

### ⭐⭐⭐⭐⭐ GENUINE NGK PLUGS AT A GREAT PRICE
*by J***O on January 12, 2026*

THESE ARE GENUINE NGK PLUGS. I submitted information to NGK's customer service dept including pictures, production codes, and resistance measurements from the plugs and they confirmed that they are genuine NGK. I have not had a chance to install them yet but I will be soon. If I was not positive that they were genuine I would never take the chance of ruining my engine on a plug coming apart or failing early.

### ⭐⭐⭐⭐⭐ No complaints so far and look to be genuine NGK
*by J***R on February 14, 2025*

No complaints so far. I did inspect them before installing and they look to be genuine NGK spark plugs according to NGK's article "How to identify NGK SPARK PLUGS." The NGKs replaced fake Denso spark plugs from eBay that had worn center electrode tips after only 13k miles (my cheap fault). My worn spark plug gaps ranged from .065" to .073" when they're supposed to be around .044", which the NGKs are pre-gapped to. After installing the NGKs, instantly noticed the increase to normal engine performance. Ordered 2/11/25. Received and installed on my 2012 Acura TSX on 2/12/25.

### ⭐⭐⭐⭐⭐ Plugs worked great
*by C***1 on October 27, 2025*

Made my CRV drive like new again.

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*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-03-07*