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

The solid copper core offers superior heat dissipation and conductivity. This helps to keep the spark plug at an optimal operating temperature, which contributes to consistent performance and longer plug life.

Why is the trivalent metal plating important?

The trivalent metal plating provides superior anti-corrosion and anti-seizing properties. This makes installation and removal of the spark plugs easier, especially on engines where plugs may have been in place for a long time.

Are these spark plugs sold individually or as a set?

This specific listing is for a box of 10 spark plugs. While they can be ordered individually, purchasing the box ensures you have enough for multiple bikes or a complete tune-up.

NGK Standard Spark Plug (DPR9Z)

Name: NGK Standard Spark Plug (DPR9Z)
Brand: NGK
SKU: ngk-ngk-standard-spark-plug-dpr9z-pa-ng4830
Price: 16.04 USD
Availability: InStock

$16.04

Only 1 left in stock

Fits 1984-1995 Honda XR250R. NGK Standard spark plugs offer reliable performance with a copper core for heat dissipation.

Key Features

Fits 1984-1995 Honda XR250R, 1984-1987 Honda XL250R, and 1984-1985 Honda XR200R.
NGK Standard spark plugs offer reliable performance and are built to OE specifications.
Features a pure alumina silicate ceramic insulator for strength and heat transfer.
A solid copper core provides superior heat dissipation and conductivity.
Trivalent metal plating offers excellent anti-corrosion and anti-seizing properties.
Triple gasket sealing prevents combustion gas leakage.

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Product Details

If you're working on your 1984-1995 Honda XR250R, these NGK Standard spark plugs are a solid choice for getting your engine running right. NGK has been a trusted name for decades, and these plugs are built to meet original equipment specifications, meaning they'll fit and perform just like the ones that came from the factory.

What makes these plugs stand out is their construction. They feature a pure alumina silicate ceramic insulator, which is strong and helps transfer heat away from the combustion chamber. The copper core inside is a big plus too, as it's excellent at dissipating heat and conducting electricity, helping to keep things running smoothly. Plus, the trivalent metal plating on the outside gives them good resistance to corrosion and seizing, making them easier to install and remove down the road.

This listing is for a box of 10 plugs, which is handy if you're doing a full tune-up or have multiple bikes. They're designed for long life and consistent performance, so you can count on them to keep your XR250R firing on all cylinders.