---
product_id: 98016836
title: "Spark Plug 91909 Central Electrode - Iridium & 1 Ground Electrode & with Flat Hold-Seal Key Opening: 16 mm"
brand: "ngk"
price: "฿2347"
currency: THB
in_stock: true
category: "Ngk"
url: https://www.desertcart.co.th/products/98016836-spark-plug-91909-central-electrode-iridium-and-1-ground-electrode
store_origin: TH
region: Thailand
---

# Long-lasting durability since 1930 Iridium core for superior ignition 16 mm flat hold-seal key opening Spark Plug 91909 Central Electrode - Iridium & 1 Ground Electrode & with Flat Hold-Seal Key Opening: 16 mm

**Brand:** ngk
**Price:** ฿2347
**Availability:** ✅ In Stock

## Summary

> ⚡ Ignite your drive with NGK’s precision spark – where performance meets reliability!

## Quick Answers

- **What is this?** Spark Plug 91909 Central Electrode - Iridium & 1 Ground Electrode & with Flat Hold-Seal Key Opening: 16 mm by ngk
- **How much does it cost?** ฿2347 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/98016836-spark-plug-91909-central-electrode-iridium-and-1-ground-electrode)

## 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 Performance:** Built to last with NGK’s century-long expertise and cutting-edge R&D.
- • **Tailored Vehicle Fit:** Designed for vehicle-specific compatibility, guaranteeing seamless installation.
- • **Eco-Friendly Combustion:** Optimized hot spark reduces harmful emissions for a cleaner drive.
- • **Precision Ignition Power:** Iridium central electrode ensures lightning-fast, reliable sparks every time.
- • **Trusted Quality & Ratings:** Highly rated by professionals with a 4.6-star average from 161 reviews.

## Overview

The NGK Spark Plug 91909 LMAR8BI-9 features an iridium central electrode and a 16 mm flat hold-seal key opening, engineered for vehicle-specific fit and superior ignition. Backed by NGK’s 90+ years of innovation, it delivers high performance, excellent ignitability, and long service life while reducing harmful emissions.

## 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.

## 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 | #125,973 in Automotive ( See Top 100 in Automotive ) #819 in Automotive Replacement Spark Plugs |
| Brand Name | NGK |
| Compatible with Vehicle Type | Vehicle Specific |
| Core Material | Iridium |
| Customer Reviews | 4.6 4.6 out of 5 stars (161) |
| 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 Kilograms |
| Manufacturer | Ngk |
| Manufacturer Part Number | LMAR8BI-9 |
| Model Number | LMAR8BI-9 [ 91909 ] |
| OEM Equivalent Part Number | LMAR8BI-9 |
| Thread Size | RM |
| Top Material Type | Metal |
| UPC | 779420925391 087295919095 |
| Unit Count | 1.0 Count |

## Product Details

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

## Images

![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)

## 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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**Shop now:** [https://www.desertcart.co.th/products/98016836-spark-plug-91909-central-electrode-iridium-and-1-ground-electrode](https://www.desertcart.co.th/products/98016836-spark-plug-91909-central-electrode-iridium-and-1-ground-electrode)

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*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-07-04*