What makes the trivalent metal plating important?

The trivalent metal plating on the spark plug body helps prevent corrosion and makes it easier to install and remove the plug later on. This is especially useful if your motorcycle is exposed to moisture or salt.

How does the copper core help?

The solid 98% pure copper core is an excellent conductor of heat. It helps dissipate heat away from the spark plug's electrode, which is important for maintaining optimal operating temperature and preventing overheating.

Are these spark plugs sold individually?

This listing is for a single NGK 90398 LMAR8E-J Nickel Spark Plug. You will need to purchase the correct quantity for your specific motorcycle's engine.

NGK LMAR8E-J Nickel Spark Plug 90398

Name: NGK 90398 LMAR8E-J Nickel Spark Plug
Brand: NGK
SKU: ngk-ngk-90398-lmar8e-j-nickel-spark-plug-t14-709966
Price: 155.14 USD
Availability: BackOrder

NGK 90398 LMAR8E-J Nickel Spark Plug

$155.14

On Backorder

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

NGK 90398 LMAR8E-J Nickel Spark Plug. OE quality nickel alloy performance for reliable ignition.

Key Features

Fits 2020-2021 Yamaha motorcycles.
Nickel alloy center electrode offers reliable performance and durability.
High-grade alumina silicate ceramic insulator provides superior strength and heat transfer.
Triple gasket sealing prevents combustion gas leakage.
Trivalent metal plating ensures superior anti-corrosion and anti-seizing properties.
98% pure copper core aids in heat dissipation and conductivity.

This part is listed for 2020-2021 Yamaha motorcycles. Please verify fitment for your specific model.

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Product Details

When it's time to replace the spark plugs on your motorcycle, choosing the right ones is key to keeping that engine running smoothly. These NGK LMAR8E-J nickel spark plugs are built to meet the original equipment specifications for your bike, meaning they're designed to perform just like the plugs that came from the factory. They use a reliable nickel alloy center electrode that offers good performance and a long service life.

NGK uses a high-grade alumina silicate ceramic for the insulator, which is strong and helps with heat transfer away from the electrode. You'll also find triple gasket sealing to make sure there are no leaks of combustion gases, and the trivalent metal plating on the plug body helps prevent corrosion and makes them easier to remove down the road. The copper core inside is great at dissipating heat, which is important for keeping the plug at the right temperature.

These plugs are a solid option for maintaining your motorcycle's ignition system. They are built for long life and consistent performance, so you can count on them to keep your engine firing reliably.