---
product_id: 457717869
title: "NGK CR9EIX - Iridium IX Spark Plug - 4-Pack/-"
brand: "ngk"
price: "S/.311"
currency: PEN
in_stock: true
reviews_count: 5
category: "Ngk"
url: https://www.desertcart.pe/products/457717869-ngk-cr9eix-iridium-ix-spark-plug-4-pack
store_origin: PE
region: Peru
---

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

**Brand:** ngk
**Price:** S/.311
**Availability:** ✅ In 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?** S/.311 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pe](https://www.desertcart.pe/products/457717869-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

- • **Perfect OEM Fit:** Seamlessly replace your spark plugs with guaranteed vehicle-specific compatibility—no guesswork needed.
- • **Value-Packed 4-Pack:** Stock up and save with a convenient four-pack, ensuring you're always ready for peak performance.
- • **Lightweight & Durable:** At just 0.28 lbs each, these plugs deliver high performance without adding bulk.
- • **Precision Iridium Core:** Experience superior ignition efficiency and longer lifespan with NGK's ultra-durable iridium tip.
- • **Trusted Brand Excellence:** Join thousands of satisfied drivers who rate NGK 4.8/5 for reliability and performance.

## Overview

The NGK CR9EIX Iridium IX Spark Plug 4-pack offers a direct OEM replacement with a high-performance iridium core, ensuring enhanced ignition efficiency and durability. Designed for vehicle-specific fitment, these plugs come from a trusted brand with a 4.8-star rating across nearly 500 reviews, making them a reliable upgrade for any car enthusiast seeking consistent power and value.

## Description

Genuine 4 pack NGK Iridium IX 3521 Spark Plug

Review: GOOD PRODUCT
Review: Value

## 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 |
| Automotive Fit Type | Vehicle Specific Fit |
| Best Sellers Rank | #23,984 in Automotive ( See Top 100 in Automotive ) #73 in Automotive Performance Spark Plugs |
| Brand | NGK |
| Brand Name | NGK |
| Compatible with Vehicle Type | Car |
| Core Material | Iridium |
| Core material | Iridium |
| Customer Reviews | 4.8 out of 5 stars 490 Reviews |
| Included Components | 3521 |
| Item Weight | 0.28 Pounds |
| Manufacturer | NGK |
| Manufacturer Part Number | CR9EIX |
| Model Number | 3521 |
| OEM Equivalent Part Number | 7085731 |
| Thread Size | 10mm |
| Thread size | 10mm |
| Top Material Type | Iridium |
| 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/61wBxBvQUhL.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

### ⭐⭐⭐⭐⭐ GOOD PRODUCT
*by M***. on 20 February 2026*



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



### ⭐⭐⭐⭐⭐ Decent price
*by R***R on 30 November 2025*



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**Shop now:** [https://www.desertcart.pe/products/457717869-ngk-cr9eix-iridium-ix-spark-plug-4-pack](https://www.desertcart.pe/products/457717869-ngk-cr9eix-iridium-ix-spark-plug-4-pack)

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*Product available on Desertcart Peru*
*Store origin: PE*
*Last updated: 2026-05-06*