# NGK Iridium Spark Plug Box of 4 (CPR8EAIX-9)

NGK Iridium IX spark plugs are specifically designed for the performance enthusiast. Iridium IX provides outstanding acceleration, high fuel efficiency and durability. NGK Iridium IX plugs offer extreme ignitability and exceptional anti-fouling. Tapered cut ground electrode provides improved starting, idling and throttle response. The Iridium fine wire center electrode's durability is six times harder than platinum. Iridium alloy's extremely high melting point is perfect for today's engines. For even greater performance consider upgrading to an NGK Ruthenium HX plug.

-   RECOMMENDED USAGE: Modified or high performance applications, or as an upgrade to OE nickel alloy spark plugs
-   Trivalent metal plating for superior anti-corrosion and anti-seizing properties
-   Outstanding acceleration, high fuel efficiency and durability
-   Fine iridium tip ensures durable and consistent spark

This Part Fits:

Year

Make

Model

Submodel

2013-2019

Honda

CB500F

Base

2013-2016,2019

Honda

CB500F ABS

Base

2013-2020

Honda

CB500X

Base

2013-2016,2019-2020

Honda

CB500X ABS

Base

2013-2020

Honda

CBR500R

Base

2013-2016,2019-2020

Honda

CBR500R ABS

Base

2017-2020

Honda

CMX500 Rebel 500

Base

2019-2020

Honda

CMX500 Rebel 500 ABS

Base

2006-2009,2012-2017

Honda

CRF150F

Base

2017-2020

Honda

NCW50 Metropolitan

Base

2010

Honda

NT700V

Base

2011

Honda

NT700VA ABS

Base

2015-2016,2018-2019

Yamaha

FJR1300A

Base

2013-2014

Yamaha

FJR1300A ABS

Base

2014-2016,2018

Yamaha

FJR1300ES

Base

2019

Yamaha

WR450F

Base

2015-2019

Yamaha

XC155 SMAX

Base

2018-2019

Yamaha

YZ450F

Base

2019-2020

Yamaha

YZ450FX

Base

## Details

- **Price:** 74.61 CAD
- **Vendor:** NGK
- **Type:** Spark Plugs

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 74.61 CAD | In stock |

## Images

- Photo - Primary
- Photo - out of package

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> Source: [Standard Auto Part](https://www.standardautopart.com/products/ngk-iridium-spark-plug-box-of-4-cpr8eaix-9)
> Updated: 2026-06-27