---
product_id: 273881654
title: "(5787-4PK) ILZKR7B-11S Laser Iridium Spark Plug, Box of 4"
brand: "ngk"
price: "38719 Ft"
currency: HUF
in_stock: true
reviews_count: 1
url: https://www.desertcart.hu/products/273881654-5787-4pk-ilzkr7b-11s-laser-iridium-spark-plug-box-4
store_origin: HU
region: Hungary
---

# 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:** 38719 Ft
**Availability:** ✅ In Stock

## Summary

> ⚡ Ignite your drive 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?** 38719 Ft with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hu](https://www.desertcart.hu/products/273881654-5787-4pk-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

- • **Eco-Smart Efficiency:** Optimized for faster starts, quicker acceleration, better fuel economy, and reduced emissions—drive cleaner and greener.
- • **Endurance Engineered:** Platinum disc on ground electrode extends plug life, keeping your ride smooth mile after mile.
- • **Carbon-Busting Design:** Longer insulator nose and corrugated ribs prevent carbon buildup and flashover, ensuring consistent performance.
- • **Leak-Proof Performance:** Triple gasket seal eliminates combustion gas leakage, maximizing engine efficiency and power output.
- • **Precision Ignition Power:** Laser-welded Iridium tip delivers unmatched durability and a stronger spark for flawless engine starts every time.

## Overview

NGK’s ILZKR7B-11S Laser Iridium Spark Plugs feature a laser-welded iridium center electrode and platinum disc for exceptional durability and spark efficiency. Designed with a longer insulator nose, corrugated ribs, and a triple gasket seal, these plugs prevent carbonization and gas leaks, delivering faster starts, improved acceleration, enhanced fuel economy, and lower emissions. Perfect for professionals seeking reliable, high-performance ignition components.

## Description

NGK(5787-4PK) ILZKR7B-11S Laser Iridium Spark Plug, Box of 4

## 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 |
|---------------|-------|
| Manufacturer | NGK |
| Brand | NGK |
| Model | 5787-4PK |
| Product Dimensions | 2.11 x 9.4 x 2.39 cm; 181.44 g |
| Item model number | 5787-4PK |
| Exterior | Machined |
| Manufacturer Part Number | 5787-4PK |
| Position | Front, Rear |
| Item Weight | 181 g |

## Product Details

- **Brand:** NGK
- **Core material:** Iridium
- **Thread size:** 14mm x 1.25mm
- **Top material type:** Metal
- **Vehicle service type:** Motorcycle

## 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

### ⭐⭐⭐⭐⭐ works as expected
*by A***D on 18 July 2023*

performance is excellent

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**Shop now:** [https://www.desertcart.hu/products/273881654-5787-4pk-ilzkr7b-11s-laser-iridium-spark-plug-box-4](https://www.desertcart.hu/products/273881654-5787-4pk-ilzkr7b-11s-laser-iridium-spark-plug-box-4)

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*Product available on Desertcart Hungary*
*Store origin: HU*
*Last updated: 2026-03-19*