What is the benefit of the copper core in these spark plugs?

The 98% pure copper core offers superior heat dissipation and conductivity. This helps to keep the spark plug at an optimal operating temperature, preventing overheating and ensuring reliable performance.

Why is the trivalent metal plating important?

The trivalent metal plating provides superior anti-corrosion and anti-seizing properties. This makes installation easier and prevents the spark plug from becoming stuck in the cylinder head, which is especially helpful during future maintenance.

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

While the trivalent metal plating offers excellent anti-seizing properties, NGK does not pre-apply anti-seize compound to the threads. It is always recommended to refer to the vehicle manufacturer's service manual for specific installation instructions, including whether to use anti-seize.

NGK Copper Core Spark Plug LMAR9D-J Box of 10

Name: NGK Copper Core Spark Plug Box of 10 (LMAR9D-J)
Brand: NGK
Price: 17.64 USD
Availability: InStock

NGK Copper Core Spark Plug Box of 10 (LMAR9D-J)

$17.64

In Stock

NGK Copper Core Spark Plug Box of 10 (LMAR9D-J). Offers reliable performance with a copper core for heat dissipation.

Key Features

Fits multiple BMW and Can-Am models including the BMW S1000RR and Can-Am Maverick 1000R Turbo.
Features a 98% pure copper core for superior heat dissipation and conductivity.
Trivalent metal plating offers excellent resistance to corrosion and seizing.
Alumina silicate ceramic insulator provides strength and helps with heat transfer.
Corrugated ribs on the insulator prevent flashover.
Triple gasket sealing prevents combustion gas leakage.

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Product Details

Starting with a solid 98% pure copper core, these NGK spark plugs are built to handle heat effectively. That copper core is key for dissipating the heat generated during combustion, helping to keep your engine running smoothly and preventing pre-ignition. These are NGK Standard plugs, the kind you've seen in the iconic yellow box for years, designed as direct OE replacements for a wide range of motorcycles and powersports vehicles.

What really sets these apart is the trivalent metal plating on the shell. This isn't just for looks; it provides excellent resistance to corrosion and seizing, making installation and future removal much easier. You won't have to worry about fighting stuck plugs down the road. The insulator is made from high-grade alumina silicate ceramic, which offers superior strength and helps with heat transfer, while corrugated ribs on the insulator body help prevent flashover. Plus, triple seals are used to prevent any combustion gas leakage, ensuring consistent performance.

This is a box of 10 plugs, perfect if you're servicing a multi-cylinder engine or just want spares on hand. They're a well-built option for BMW G310GS, G310R, S1000R, S1000RR, S1000XR, and various Can-Am Maverick models, offering reliable OE-equivalent performance.