How many spark plugs are in this box?

This box contains four (4) NGK Iridium IX spark plugs. You will need to order multiples of four if your vehicle has more than a 4-cylinder engine.

What makes iridium spark plugs better than platinum?

Iridium is a much harder metal than platinum, with a higher melting point. This means the fine iridium center electrode can be made smaller and lasts longer, providing a more consistent and powerful spark over its lifespan.

Do these spark plugs come with anti-seize pre-applied?

While the spark plugs feature trivalent metal plating for superior anti-corrosion and anti-seizing properties, it is generally recommended to apply a small amount of anti-seize compound to the threads before installation, following manufacturer guidelines.

NGK Iridium IX Spark Plug ER9EHIX 96652

Name: NGK Iridium IX Spark Plug Box of 4 (ER9EHIX)
Brand: NGK
Price: 58.21 USD
Availability: InStock

NGK Iridium IX Spark Plug Box of 4 (ER9EHIX)

$58.21

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

NGK Iridium IX Spark Plug Box of 4 (ER9EHIX). Offers outstanding acceleration and durability for performance applications.

Key Features

Fits a range of vehicles including the Vespa LX 50 4V and Piaggio Typhoon 50.
Fine iridium center electrode offers durability and a consistent spark.
Trivalent metal plating resists corrosion and seizing.
Outstanding acceleration, high fuel efficiency, and durability.
Tapered ground electrode improves starting, idling, and throttle response.
Designed for modified or high-performance applications, or as an upgrade to OE plugs.

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Will this fit your vehicle?

Product Details

NGK is known for making solid ignition components, and their Iridium IX spark plugs are a popular choice when you're looking for a step up from standard plugs. These are designed to handle the demands of modified or high-performance engines, or simply to give your everyday ride a bit more pep. They're built with a fine iridium center electrode, which is much harder than platinum, giving you a durable and consistent spark over time. This improved ignitability helps with starting, idling, and throttle response, making your engine feel more responsive.

The iridium alloy has a very high melting point, which is great for today's hotter-running engines. You'll notice improved acceleration and better fuel efficiency with these installed. Plus, the trivalent metal plating on the plug body helps prevent corrosion and seizing, making them easier to remove down the road. If you're looking to get the most out of your engine's ignition system, these are a well-built option.

This set comes with four spark plugs, which is what most 4-cylinder engines need. For engines with more cylinders, you'll want to order multiples of four to ensure you have enough. They fit a range of vehicles, including models like the Vespa LX 50 4V and Piaggio Typhoon 50.