# NGK Iridium IX Spark Plug Box of 4 (ER9EHIX)

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

2016

Piaggio

Fly 50 4V

Base

2016

Piaggio

Typhoon 50

Base

2010-2012

Vespa

LX 50 4V

Base

2009

Vespa

S 50

Base

2010-2014

Vespa

S 50 4V

Base

2015-2017

Vespa

Sprint 50

Base

## Details

- **Price:** 106.4 CAD
- **Vendor:** NGK
- **Type:** Spark Plugs

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 106.40 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-er9ehix)
> Updated: 2026-06-27