What is the main benefit of the trivalent metal plating on these spark plugs?

The trivalent metal plating provides superior resistance to corrosion and seizing. This makes installation and removal easier, especially after the plugs have been in the engine for a while.

Why is the copper core important in these NGK spark plugs?

The copper core offers excellent heat dissipation and conductivity. This helps keep the spark plug at an optimal operating temperature, which is crucial for consistent performance and preventing pre-ignition.

Does this box include all the spark plugs needed for my Jaguar XJS?

This package contains 10 NGK BR7EFS spark plugs. Your 1989-1990 Jaguar XJS uses a V12 engine, which requires 12 spark plugs. You will need to purchase an additional box or two to complete the job.

1989-1990 Jaguar XJS Spark Plugs

Name: NGK Traditional Spark Plugs Box of 10 (BR7EFS)
Brand: NGK
Price: 30.34 USD
Availability: InStock

NGK Traditional Spark Plugs Box of 10 (BR7EFS)

$30.34

On Backorder

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

Fits 1989-1990 Jaguar XJS. NGK BR7EFS spark plugs offer reliable performance with a copper core for heat dissipation and trivalent plating for corrosion resistance.

Key Features

Fits 1989-1990 Jaguar XJS.
NGK BR7EFS spark plugs feature trivalent metal plating for superior anti-corrosion and anti-seizing properties.
The pure alumina silicate ceramic insulator provides strength and better heat transfer.
A solid 98% pure copper core offers reliable heat dissipation and conductivity.
Triple gasket sealing prevents combustion gas leakage.
This is a box of 10 spark plugs.

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Fits this vehicle

Jaguar XJS 1989-1990

Product Details

If you're working on your 1989 or 1990 Jaguar XJS, these NGK BR7EFS spark plugs are a solid choice for reliable ignition. NGK has been a trusted name for decades, and these standard plugs are built to OE specifications, meaning they'll fit and function just like the originals.

What makes these plugs stand out is the construction. They feature a pure alumina silicate ceramic insulator, which is strong and helps with heat transfer away from the firing tip. The copper core inside is a big plus too, offering better heat dissipation and conductivity compared to plain steel cores. Plus, the trivalent metal plating on the shell makes them resistant to corrosion and seizing, which is always helpful when it's time for your next tune-up. The triple seals are there to keep combustion gases from leaking out, ensuring everything stays sealed up tight.

This is a box of 10 plugs, so you'll have enough for your V12 engine. They're designed for long life and consistent performance, keeping your XJS running smoothly.