# NGK Iridium IX Spark Plug Box of 4 (DR9EIX)

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

1992

Ducati

888 Strada

Base

1980-1981

Honda

CB900C Custom

Base

1981

Honda

CB900F Super Sport

Base

1985-1986,1988-1990

Kawasaki

EN450A 454 LTD

Base

1990-1996

Kawasaki

EN500 Vulcan 500

Base

1996-2009

Kawasaki

EN500C Vulcan 500 LTD

Base

1994-1996

Kawasaki

EX500 Ninja 500

Base

1997-2009

Kawasaki

EX500 Ninja 500R

Base

1981-1982

Kawasaki

KZ305 CSR

Base

1982

Kawasaki

KZ305B CSR Belt

Base

1987-1988

Kawasaki

KZ305B LTD

Base

1986-1987

Kawasaki

ZL600 Eliminator

Base

1990-1991

Kawasaki

ZR550 Zephyr

Base

1991-1992

Kawasaki

ZR750C Zephyr

Base

1985-1997

Kawasaki

ZX600 Ninja 600R

Base

1990-1997

Kawasaki

ZX600 Ninja ZX-6

Base

1995-1997

Kawasaki

ZX600 Ninja ZX-6R

Base

2003-2004

KTM

660 Rally

Base

1992-1993

Lamborghini

Diablo

Base

1994

Lamborghini

Diablo

SE30

1994-1996

Lamborghini

Diablo

VT

1998

Moto Guzzi

V10 Centauro GT

Base

1998

Moto Guzzi

V10 Centauro Sport

Base

1980-1981

Suzuki

GS250T

Base

1982-1983

Suzuki

GS300L

Base

1983-1986

Suzuki

GS550E

Base

1983-1986

Suzuki

GS550ES

Base

1983-1986

Suzuki

GS550L

Base

1997-2005

Suzuki

GSF1200S Bandit

Base

1989-1992

Suzuki

GSX-R1100

Base

1986-1987

Suzuki

GSX-R750

Base

1988-1993

Suzuki

GSX1100F Katana

Base

1991-1993

Suzuki

GSX1100G

Base

1983

Suzuki

XN85 Turbo

Base

1973-1974

Yamaha

TX500

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 - 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-dr9eix)
> Updated: 2026-06-27