---
product_id: 238907653
title: "LKAR6AIX-11 Iridium IX Spark Plug (91187 Iridium Ix), 4 Pack"
brand: "ngk"
price: "C$8061"
currency: NIO
in_stock: true
url: https://www.desertcart.ni/products/238907653-lkar6aix-11-iridium-ix-spark-plug-91187-iridium-ix-4
store_origin: NI
region: Nicaragua
---

# Extreme ignitability High durability Improved throttle response LKAR6AIX-11 Iridium IX Spark Plug (91187 Iridium Ix), 4 Pack

**Brand:** ngk
**Price:** C$8061
**Availability:** ✅ In Stock

## Summary

> Ignite Your Drive! 🚗💨

## Quick Answers

- **What is this?** LKAR6AIX-11 Iridium IX Spark Plug (91187 Iridium Ix), 4 Pack by ngk
- **How much does it cost?** C$8061 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ni](https://www.desertcart.ni/products/238907653-lkar6aix-11-iridium-ix-spark-plug-91187-iridium-ix-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

- • **Built to Last:** Iridium alloy withstands heat and wear effortlessly.
- • **Corrosion? Not Here!:** Trivalent Metal Plating ensures longevity and reliability.
- • **Say Goodbye to Fouling:** Longer insulator nose and triple gasket seal prevent fouling.
- • **Unleash Your Engine's Potential:** Experience extreme ignitability for peak performance.
- • **Throttle Response Like Never Before:** Enjoy a smoother, more responsive drive.

## Overview

The NGKLKAR6AIX-11 Iridium IX Spark Plug (91187 Iridium IX) is engineered for performance enthusiasts, featuring a 0.6mm laser welded Iridium tip for durability, a tapered ground electrode for minimal electrical quenching, and advanced anti-fouling technology. With superior anti-corrosion properties, this spark plug is designed to enhance the performance of today's high-performance engines.

## Description

LKAR6AIX-11 Iridium IX Spark Plug (91187 Iridium Ix), 4 Pack

## Features

- Designed specifically for the performance enthusiast, Iridium IX offers extreme ignitability, improved throttle response and superior anti-fouling
- The 0.6 millimeter laser welded fine Iridium tip ensures high durability and a consistently stable spark and the tapered ground electrode minimizes electrical quenching effect
- Longer insulator nose prevents fouling, the corrugated ribs on insulator prevents flashover, and a triple gasket seal eliminates combustion gas leakage
- Iridium alloy has extremely high melting point, giving it high durability to heat and electrical wear, perfect for today's high performance engines
- Trivalent Metal Plating provides superior anti-corrosion and anti-seizing properties

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07FP438JV |
| Automotive Fit Type | Vehicle Specific Fit |
| Best Sellers Rank | #28,227 in Automotive ( See Top 100 in Automotive ) #155 in Automotive Replacement Spark Plugs |
| Brand | NGK |
| Core Material | Iridium |
| Customer Reviews | 4.8 4.8 out of 5 stars (1,681) |
| Date First Available | July 17, 2018 |
| Global Trade Identification Number | 00087295811870 |
| Item Weight | 5.9 ounces |
| Item model number | LKAR6AIX-11 |
| Manufacturer | NGK |
| Manufacturer Part Number | LKAR6AIX-11 |
| Model | 4 pack NGK Iridium IX 91187 Spark Plug |
| Position | Front, Rear |
| Product Dimensions | 5.83 x 4 x 1 inches |
| Thread Size | 14mm |
| Top Material Type | Metal |
| UPC | 087295811870 |
| Vehicle Service Type | Car, Truck |

## Product Details

- **Brand:** NGK
- **Core Material:** Iridium
- **Thread Size:** 14mm
- **Top Material Type:** Metal
- **Vehicle Service Type:** Car, Truck

## Images

![LKAR6AIX-11 Iridium IX Spark Plug (91187 Iridium Ix), 4 Pack - Image 1](https://m.media-amazon.com/images/I/71gXB9P6XSL.jpg)

## Questions & Answers

**Q: Are these plugs pre-gapped ?**
A: They should be. THOUGH, and I stress, it wouldn't hurt to check them prior to installing them. I've purchased pre-gapped plugs before and they were off just a bit. 39 vs 44 as an example.

**Q: What is the expected milage for these?**
A: 40-50k miles (more expensive OE 9029 are rated 80-100k miles).  Ref. ngksparkplugsdotcom

**Q: Are these 5/8 spark plugs?**
A: These sparkplugs  are 14mm or 9/16. Socket fits snug with either one you wish to go with . Strongly suggest the magnetic spark plug socket .

**Q: Will this fit a 2015 Nissan rouge sv?**
A: Amazon site should tell if they fit.

## Frequently Bought Together

- NGK LKAR6AIX-11 Iridium IX Spark Plug (91187 Iridium Ix), 4 Pack
- FEL-PRO MS 97038 Intake Manifold Gasket Set
- Hitachi IGC0002 Ignition Coil

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**Shop now:** [https://www.desertcart.ni/products/238907653-lkar6aix-11-iridium-ix-spark-plug-91187-iridium-ix-4](https://www.desertcart.ni/products/238907653-lkar6aix-11-iridium-ix-spark-plug-91187-iridium-ix-4)

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*Product available on Desertcart Nicaragua*
*Store origin: NI*
*Last updated: 2026-02-24*