---
product_id: 344498024
title: "4 New NGK IRIDIUM IX Spark Plug LTR6IX-11 # 6509"
brand: "ngk"
price: "$173.65"
currency: USD
in_stock: true
url: https://www.desertcart.us/products/344498024-4-new-ngk-iridium-ix-spark-plug-ltr6ix-11-6509
store_origin: US
region: United States of America
---

# Iridium core for superior spark 14mm precision thread size Optimized for motorcycle performance 4 New NGK IRIDIUM IX Spark Plug LTR6IX-11 # 6509

**Brand:** ngk
**Price:** $173.65
**Availability:** ✅ In Stock

## Summary

> ⚡ Ignite your ride with NGK Iridium IX – where power meets precision!

## Quick Answers

- **What is this?** 4 New NGK IRIDIUM IX Spark Plug LTR6IX-11 # 6509 by ngk
- **How much does it cost?** $173.65 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/344498024-4-new-ngk-iridium-ix-spark-plug-ltr6ix-11-6509)

## 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

- • **Ready to Ride:** No assembly required—just install and experience smoother starts and improved throttle response.
- • **Genuine NGK Quality:** Original packaging and hardware mean authentic parts trusted by professionals worldwide.
- • **Precision Fit Guaranteed:** 14mm thread size ensures seamless installation and perfect compatibility with your ride.
- • **Unmatched Ignition Power:** Iridium IX core delivers a stronger, more reliable spark for peak engine efficiency.
- • **Durability Meets Performance:** Crafted with premium metal and ceramic materials for long-lasting, high-temp resistance.

## Overview

This 4-pack of NGK Iridium IX LTR6IX-11 spark plugs features a durable iridium core and 14mm thread size, designed specifically for motorcycles. Manufactured in the USA, these genuine NGK parts ensure reliable ignition, enhanced engine performance, and easy installation with no assembly required.

## Description

4 New NGK IRIDIUM IX Spark Plug LTR6IX-11 # 6509

## Features

- 4 pack NGK Iridium IX 6509 Spark Plug
- Genuine NGK Parts
- Includes original packaging and hardware
- Direct replacement auto parts
- Confirm vehicle fitment with desertcart Confirmed Fit

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | NGK |
| Core Material | Iridium |
| Thread Size | 14 millimeters |
| Top Material Type | Metal |
| Vehicle Service Type | Motorcycle |
| UPC | 087295065099 |
| Manufacturer | NGK Spark Plug |
| Product Dimensions | 10.01 x 10.01 x 2.31 cm; 199.58 g |
| Item model number | LTR6IX-11 |
| Manufacturer Part Number | LTR6IX-11 |
| Position | Front, Rear |
| Material | paper ceramic |
| Assembly Required | No |
| Manufacturer | NGK Spark Plug |
| Country of Origin | USA |
| Item Weight | 200 g |

## Product Details

- **Brand:** NGK
- **Core Material:** Iridium
- **Thread Size:** 14 millimeters
- **Top Material Type:** Metal
- **Vehicle Service Type:** Motorcycle

## Images

![4 New NGK IRIDIUM IX Spark Plug LTR6IX-11 # 6509 - Image 1](https://m.media-amazon.com/images/I/71ynwqj99yL.jpg)

## Frequently Bought Together

- 4 New NGK IRIDIUM IX Spark Plug LTR6IX-11 # 6509
- Permatex 22058 Dielectric Tune-Up Grease, 3oz. - High Performance Dielectric Grease Used To Protect Terminals, Spark Plugs, Wiring And Other Electrical Connections Against Salt, Dirt, And Corrosion
- CTA Tools 3235 Spark Plug Gapper

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**Shop now:** [https://www.desertcart.us/products/344498024-4-new-ngk-iridium-ix-spark-plug-ltr6ix-11-6509](https://www.desertcart.us/products/344498024-4-new-ngk-iridium-ix-spark-plug-ltr6ix-11-6509)

---

*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-03-03*