---
product_id: 98016836
title: "NGK Spark Plug 91909 Central Electrode - Iridium & 1 Ground Electrode & with Flat Hold-Seal Key Opening: 16 mm"
brand: "ngk"
price: "€ 43.43"
currency: EUR
in_stock: true
reviews_count: 13
category: "Ngk"
url: https://www.desertcart.fr/products/98016836-ngk-spark-plug-91909-central-electrode-iridium-and-1-ground
store_origin: FR
region: France
---

# Iridium central electrode for superior spark 1 ground electrode for optimized combustion 16 mm flat hold-seal key opening for precise fit NGK Spark Plug 91909 Central Electrode - Iridium & 1 Ground Electrode & with Flat Hold-Seal Key Opening: 16 mm

**Brand:** ngk
**Price:** € 43.43
**Availability:** ✅ In Stock

## Summary

> 🔥 Ignite your engine’s true potential with NGK’s iridium spark plug!

## Quick Answers

- **What is this?** NGK Spark Plug 91909 Central Electrode - Iridium & 1 Ground Electrode & with Flat Hold-Seal Key Opening: 16 mm by ngk
- **How much does it cost?** € 43.43 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fr](https://www.desertcart.fr/products/98016836-ngk-spark-plug-91909-central-electrode-iridium-and-1-ground)

## 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

- • **Precision Fit:** 16 mm flat hold-seal key opening ensures seamless installation
- • **Trusted Legacy:** Backed by NGK’s 90+ years of innovation and automotive excellence
- • **Cleaner Combustion:** Reduces harmful emissions for a greener, smoother ride
- • **Elite Ignition Power:** Iridium core delivers unmatched spark intensity and durability
- • **Long-Lasting Performance:** Engineered for extended service life and consistent combustion

## Overview

The NGK 91909 spark plug features a premium iridium central electrode and a single ground electrode with a 16 mm flat hold-seal key opening, designed for vehicle-specific fitment. Renowned for high performance, excellent ignitability, and long service life, it ensures cleaner combustion and reliable starts, backed by NGK’s 90+ years of automotive expertise.

## Description

Standard NGK series spark plugs are designed for stock replacement applications. Equipped with a hot spark, they offer a very good combustion, thus ensuring high performance, producing less harmful emissions.

Review: ⭐⭐⭐⭐⭐ “The Spark Plug That Lit a Fire Under My Engine (and My Expectations)” - You ever replace a spark plug and actually feel your soul ignite? No? Then you haven’t met the NGK Lazer Iridium—the plug so elite, it doesn’t start engines, it summons horsepower from the netherworld. Right out of the box, it radiates superiority. I mean, come on—Lazer? Iridium? This isn’t a spark plug, it’s a Marvel weapon disguised as engine tech. I half-expected Tony Stark to pop out and install it for me. But nope—just me, my wrench, and the sudden feeling that my ride was about to light up the world like Times Square on caffeine. Once installed? Instant combustion bliss. Cold starts? Now hotter than my ex’s temper. Throttle response? So crisp it deserves its own ASMR channel. Idle? Smoothed out like it just got a Swedish massage. My engine hasn’t felt this fired up since factory testing. Let’s not forget that iridium isn’t just a fancy name. This metal is rarer than a sincere tweet and tougher than a $2 steak. It laughs at wear, scoffs at carbon, and sparks joy (and combustion) like it’s on a mission from the ignition gods. Old plug? It’s in the trash now, right where it belongs—grounded for life. That thing used to “spark” but in a sad, wheezing birthday candle kind of way. The NGK? It ignited my faith in internal combustion. My engine now purrs like it just got a promotion. Bottom line: if you’re still running anything else, you’re shorting out your own joyride. This plug didn’t just complete the circuit—it set my whole driving experience ablaze. Five stars. Would spark again.
Review: Cumplidos y leales - Son las ideales

## Features

- Spark Plug 91909 LMAR8BI-9 SAE Fixed IR
- NGK is the world's leading manufacturer of spark plugs
- Modern production facilities and large investments in research and development make the NGK spark plug so successful.
- NGK has lit sparks since 1930
- High performance, excellent ignitability and long service life

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B06X9CKC1N |
| Automotive Fit Type | Vehicle Specific Fit |
| Best Sellers Rank | #217,687 in Automotive ( See Top 100 in Automotive ) #1,236 in Automotive Replacement Spark Plugs |
| Brand | NGK |
| Brand Name | NGK |
| Compatible with Vehicle Type | Vehicle Specific |
| Core Material | Iridium |
| Customer Reviews | 4.6 out of 5 stars 170 Reviews |
| EU Spare Part Availability Duration | 10 years |
| Gap Size | 16 millimeters |
| Global Trade Identification Number | 00087295919095 |
| Included Components | Spark Plug |
| Item Type Name | CANDLES |
| Item Weight | 0.02 kg |
| Manufacturer | Ngk |
| Manufacturer Part Number | LMAR8BI-9 |
| Model Number | LMAR8BI-9 [ 91909 ] |
| Number of Items | 1 |
| Number of Packs | 1 |
| OEM Equivalent Part Number | LMAR8BI-9 |
| Thread Size | RM |
| Top Material Type | Metal |
| UPC | 779420925391 087295919095 |
| Unit Count | 1 Count |
| Vehicle Service Type | Vehicle Specific |

## Product Details

- **Brand:** NGK
- **Core Material:** Iridium
- **Thread Size:** RM
- **Top Material Type:** Metal
- **Vehicle Service Type:** Vehicle Specific

## Images

![NGK Spark Plug 91909 Central Electrode - Iridium & 1 Ground Electrode & with Flat Hold-Seal Key Opening: 16 mm - Image 1](https://m.media-amazon.com/images/I/81gzo4iJZRL.jpg)
![NGK Spark Plug 91909 Central Electrode - Iridium & 1 Ground Electrode & with Flat Hold-Seal Key Opening: 16 mm - Image 2](https://m.media-amazon.com/images/I/61eEqPTencL.jpg)
![NGK Spark Plug 91909 Central Electrode - Iridium & 1 Ground Electrode & with Flat Hold-Seal Key Opening: 16 mm - Image 3](https://m.media-amazon.com/images/I/71nkpzwtrCL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ ⭐⭐⭐⭐⭐ “The Spark Plug That Lit a Fire Under My Engine (and My Expectations)”
*by T***N on July 4, 2025*

You ever replace a spark plug and actually feel your soul ignite? No? Then you haven’t met the NGK Lazer Iridium—the plug so elite, it doesn’t start engines, it summons horsepower from the netherworld. Right out of the box, it radiates superiority. I mean, come on—Lazer? Iridium? This isn’t a spark plug, it’s a Marvel weapon disguised as engine tech. I half-expected Tony Stark to pop out and install it for me. But nope—just me, my wrench, and the sudden feeling that my ride was about to light up the world like Times Square on caffeine. Once installed? Instant combustion bliss. Cold starts? Now hotter than my ex’s temper. Throttle response? So crisp it deserves its own ASMR channel. Idle? Smoothed out like it just got a Swedish massage. My engine hasn’t felt this fired up since factory testing. Let’s not forget that iridium isn’t just a fancy name. This metal is rarer than a sincere tweet and tougher than a $2 steak. It laughs at wear, scoffs at carbon, and sparks joy (and combustion) like it’s on a mission from the ignition gods. Old plug? It’s in the trash now, right where it belongs—grounded for life. That thing used to “spark” but in a sad, wheezing birthday candle kind of way. The NGK? It ignited my faith in internal combustion. My engine now purrs like it just got a promotion. Bottom line: if you’re still running anything else, you’re shorting out your own joyride. This plug didn’t just complete the circuit—it set my whole driving experience ablaze. Five stars. Would spark again.

### ⭐⭐⭐⭐⭐ Cumplidos y leales
*by L***A on June 4, 2026*

Son las ideales

### ⭐⭐⭐⭐⭐ Llego en perfecto estado
*by M***A on February 26, 2026*

Todavía no lo pruebo pero llego en perfectas condiciones

## Frequently Bought Together

- CANDLE NGK LMAR8BI-9
- NGK (4908 LMAR7A-9 Standard Spark Plug, Pack of 1
- K&N Motorcycle Oil Filter: High Performance, Premium, Designed to be used with Synthetic or Conventional Oils: Fits Select Honda, Kawasaki, Triumph, Yamaha Motorcycles, KN-204-1

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*Product available on Desertcart France*
*Store origin: FR*
*Last updated: 2026-09-17*