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Spark Plugs

Iridium and nickel spark plugs, including vehicle-specific options and plugs referenced by plug code, for petrol engines.Iridium and nickel spark plugs for petrol engines.
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Choosing spark plugs by electrode type and application

Compare iridium and nickel construction, then confirm the plug code or engine application the manufacturer specifies for your engine.

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Iridium or nickel

Both electrode types are available. Iridium and nickel plugs differ in construction, so choose the type your engine manufacturer specifies rather than assuming one suits every engine.

Plug code or vehicle listing

Some plugs are listed by engine application, others by plug code only. If you know the code of your current plug, compare it directly against the listing.

Engine and fuel details

Check engine size, fuel type and any modified or performance variants. Plugs for similar-looking engines can differ in thread and heat range.

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