---
product_id: 471862111
title: "NGK CR9EIX - Iridium IX Spark Plug - 4-Pack/--"
brand: "ngk"
price: "R1755"
currency: ZAR
in_stock: false
reviews_count: 5
category: "Ngk"
url: https://www.desertcart.co.za/products/471862111-ngk-cr9eix-iridium-ix-spark-plug-4-pack
store_origin: ZA
region: South Africa
---

# Iridium core for superior ignition 4-pack value bundle Direct OEM replacement fit NGK CR9EIX - Iridium IX Spark Plug - 4-Pack/--

**Brand:** ngk
**Price:** R1755
**Availability:** ❌ Out of Stock

## Summary

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

## Quick Answers

- **What is this?** NGK CR9EIX - Iridium IX Spark Plug - 4-Pack/-- by ngk
- **How much does it cost?** R1755 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/471862111-ngk-cr9eix-iridium-ix-spark-plug-4-pack)

## 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

- • **Trusted NGK Quality:** Backed by a 4.8-star rating from 461 enthusiasts, these spark plugs deliver consistent performance and longevity.
- • **Value-Packed 4-Pack:** Stock up and save with this convenient 4-pack, keeping your engine firing strong without frequent replacements.
- • **Sleek, Compact Design:** Compact dimensions and lightweight build optimize engine space and reduce wear, enhancing overall vehicle efficiency.
- • **Seamless OEM Compatibility:** Plug-and-play design ensures perfect fitment for your vehicle—no guesswork, just reliable starts every time.
- • **Precision Iridium Performance:** Experience unmatched spark efficiency with NGK’s ultra-durable iridium core, engineered for peak ignition and fuel economy.

## Overview

The NGK CR9EIX Iridium IX Spark Plug 4-pack offers professional-grade ignition performance with a durable iridium core, ensuring reliable starts and improved fuel efficiency. Designed as a direct OEM replacement, these plugs fit seamlessly into your vehicle, backed by high customer satisfaction and NGK’s trusted manufacturing standards.

## Description

Genuine 4 pack NGK Iridium IX 3521 Spark Plug

Review: Good item would buy again
Review: They Look good ngk quality plugs

## Features

- 4 pack NGK Iridium IX 3521 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 |
|---------------|-------|
| ASIN | B004SKYAWM |
| Brand | NGK |
| Core Material | Iridium |
| Country of Origin | Hong Kong |
| Customer Reviews | 4.8 4.8 out of 5 stars (461) |
| Date First Available | 16 July 2021 |
| Item Dimensions LxWxH | 8.4 x 2.4 x 8.4 Centimeters |
| Item Weight | 127 g |
| Item model number | 3521 |
| Manufacturer | NGK |
| Manufacturer Part Number | CR9EIX |
| Model | 4 pack NGK Iridium IX 3521 Spark Plug |
| OEM Part Number | 7085731 |
| Position | Front, Rear |
| Product Dimensions | 8.41 x 2.39 x 8.43 cm; 127.01 g |
| Thread Size | 10mm |
| Top Material Type | Iridium |
| Vehicle Service Type | Car |

## Product Details

- **Brand:** NGK
- **Core Material:** Iridium
- **Thread Size:** 10mm
- **Top Material Type:** Iridium
- **Vehicle Service Type:** Car

## Images

![NGK CR9EIX - Iridium IX Spark Plug - 4-Pack/-- - Image 1](https://m.media-amazon.com/images/I/31dHWUIBdvL.jpg)
![NGK CR9EIX - Iridium IX Spark Plug - 4-Pack/-- - Image 2](https://m.media-amazon.com/images/I/31v-tc4EjJL.jpg)
![NGK CR9EIX - Iridium IX Spark Plug - 4-Pack/-- - Image 3](https://m.media-amazon.com/images/I/41IJ+T7JypL.jpg)
![NGK CR9EIX - Iridium IX Spark Plug - 4-Pack/-- - Image 4](https://m.media-amazon.com/images/I/41JDczL6csL.jpg)
![NGK CR9EIX - Iridium IX Spark Plug - 4-Pack/-- - Image 5](https://m.media-amazon.com/images/I/41KwLpHzrpL.jpg)

## Questions & Answers

**Q: Are these ngk 3521 cr9eix iridium ix spark plugs?**
A: These are correct and they perform flawlessly! Ron

**Q: Will these fit a 2019 polaris rzr turbo s**
A: To be safe: check with dealer or a cross reference app to be sure. Ron

**Q: Will this work on my Harley Davidson 2018 street glide special?**
A: I have a 2017 Road King with the Milwaukee 8 and this is the one it calls for.

**Q: Are these the right iridium plugs for an Indian scout 60?**
A: NGK has multiple grades of plugs that may fit your engine.  
It is recommended to go to NGK site at
https://ngksparkplugs.com/en/part-finder to verify the applications that will fit your engine.
This site will show you all of the available plugs to fit your engine and will also show you which grade plug is recommended for the best performance of your specific engine.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by S***T on 23 August 2024*

Good item would buy again

### ⭐⭐⭐⭐⭐ Review
*by R***R on 30 November 2025*

They Look good ngk quality plugs

### ⭐⭐⭐⭐⭐ Review
*by D***. on 2 December 2025*

Great price for these quality spark plugs. My bike is running better!

## Frequently Bought Together

- NGK CR9EIX - Iridium IX Spark Plug - 4-Pack/--
- K&N Motorcycle Oil Filter: High Performance, Premium, Designed to be used with Synthetic or Conventional Oils, Wrench Off Nut: Fits Select Suzuki Motorcycles, KN-138
- K&N Engine Air Filter: High Performance, Premium, Powersport Air Filter: Fits 2006-2010 SUZUKI (GSXR600, GSXR750) SU-7506

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.co.za/products/471862111-ngk-cr9eix-iridium-ix-spark-plug-4-pack](https://www.desertcart.co.za/products/471862111-ngk-cr9eix-iridium-ix-spark-plug-4-pack)

---

*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-02-18*