# NGK Iridium IX Spark Plug Box of 4 (TR65IX)

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

2002-2005

Aston Martin

Vanquish

Base

2005-2006

Aston Martin

Vanquish

S

2005

Ford

Escape

Hybrid

2003-2004

Ford

Focus

LX

2007-2010

Ford

Focus

S

2003-2004,2007-2010

Ford

Focus

SE

2009-2010

Ford

Focus

SEL

2007-2010

Ford

Focus

SES

2007

Ford

Focus

ST

2003-2004

Ford

Focus

ZTS

2003-2004

Ford

Focus

ZTW

2003-2006

Ford

Focus

ZX3

2005-2006

Ford

Focus

ZX4

2005-2006

Ford

Focus

ZX4 ST

2003-2006

Ford

Focus

ZX5

2005-2006

Ford

Focus

ZXW

2003-2004

Ford

Mustang

SVT Cobra

2003

Ford

Mustang

SVT Cobra 10th Anniversary

1997-1998

Ford

Ranger

Splash

1997

Ford

Ranger

Sport

1997

Ford

Ranger

STX

1998-2000

Ford

Ranger

XL

1997-2000

Ford

Ranger

XLT

2002-2005

Jaguar

X-Type

Base

2004-2005

Mazda

3

i

2004-2005

Mazda

3

S

2005

Mazda

3

SP23

1997

Mazda

B4000

Base

1997-2000

Mazda

B4000

SE

2000

Mazda

B4000

Troy Lee

## 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

---

> Source: [Standard Auto Part](https://www.standardautopart.com/products/ngk-iridium-ix-spark-plug-box-of-4-tr65ix)
> Updated: 2026-06-27