# NGK Iridium IX Spark Plug Box of 4 (ZFR6AIX-11S)

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

2007-2009

Acura

MDX

Base

2005-2008

Acura

RL

Base

2002-2006

Acura

RSX

Base

2004-2008

Acura

TL

Base

2007-2008

Acura

TL

Type-S

2004-2008

Acura

TSX

Base

2003-2005

Honda

Accord

DX

2003-2007

Honda

Accord

EX

2007

Honda

Accord

EX-L

2005-2007

Honda

Accord

Hybrid

2003-2007

Honda

Accord

LX

2006

Honda

Accord

LX Special Edition

2005

Honda

Accord

SE

2007

Honda

Accord

Special Edition

2006-2007

Honda

Accord

Value Package

2006-2011

Honda

Civic

DX

2006-2011

Honda

Civic

EX

2009-2011

Honda

Civic

EX-L

2006-2011

Honda

Civic

LX

2009-2011

Honda

Civic

LX-S

2002-2005

Honda

Civic

Si

2002-2009

Honda

CR-V

EX

2007-2009

Honda

CR-V

EX-L

2002-2009

Honda

CR-V

LX

2005-2006

Honda

CR-V

SE

2003-2004

Honda

Element

DX

2003-2011

Honda

Element

EX

2004-2011

Honda

Element

LX

2007-2010

Honda

Element

SC

2007-2013

Honda

Fit

Base

2007-2013

Honda

Fit

Sport

## 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 - Primary
- Photo - out of package
- Photo - out of package

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> Source: [Standard Auto Part](https://www.standardautopart.com/products/ngk-iridium-ix-spark-plug-box-of-4-zfr6aix-11s)
> Updated: 2026-06-27