NGK Standard spark plugs (in the iconic NGK 'yellow box' packaging) are a proven OE cornerstone and technology customers have relied on for decades. Engineered specifically for OE applications, NGK Standard spark plugs provide OE quality nickel alloy reliable performance and design. NGK's legendary high grade alumina silicate ceramic creates a stronger insulator for optimal dielectric performance, while triple gasket sealing prevents combustion gas leakage. Solid 98% pure copper core offers superior heat dissipation, conductivity and ultra wide heat ranges. Trivalent metal plating ensures superior anti-corrosion and anti-seizing properties. NGK Standard spark plugs are proven technology that offer reliable performance. Actual OE or equivalent replacement spark plug. NGK Standard plugs are treated with corrosion-resistant plating to ensure ease of installation and removal. JAGUAR XJ12 1990-89, XJS 1990-89

TRIVALENT METAL PLATING: Delivers superior anti-corrosion and anti-seizing properties, ensuring ease of installation and removal
Pure alumina silicate ceramic insulator provides superior strength and better heat transfer
Trivalent metal plating for superior anti-corrosion and anti-seizing properties
Corrugated ribs prevent flashover
Copper core aids in heat removal
Triple seals prevent leakage

The NGK Part Number 1094 traditional spark plugs are designed specifically for OE applications, ensuring reliable ignition performance for your Jaguar XJ12 and XJS models from 1989 to 1990. Crafted with high-quality nickel alloy, these spark plugs provide durable, consistent performance that you can trust. The iconic NGK yellow packaging highlights their proven technology, which has been relied upon by automotive professionals and enthusiasts alike for decades. Built to meet or exceed OE standards, these plugs are an ideal replacement to maintain optimal engine performance and efficiency.

Each NGK Part Number 1094 spark plug features a solid copper core that delivers superior heat dissipation and conductivity, ensuring efficient engine operation across a wide heat range. The ceramic insulator made from high-grade alumina silicate provides enhanced strength and better heat transfer, contributing to the overall durability of the plug. The triple gasket sealing design prevents combustion gas leakage, maintaining engine integrity and performance while reducing emissions. Trivalent metal plating on the plugs offers excellent corrosion resistance and anti-seize properties, making installation and removal straightforward and hassle-free.

Designed with durability and performance in mind, these spark plugs include corrugated ribs that prevent flashover, contributing to a stable ignition process. The precise engineering of these plugs ensures they fit perfectly in compatible Jaguar models, including the 1989 and 1990 Jaguar XJ12 and XJS. Whether you're performing routine maintenance or restoring a classic vehicle, NGK's proven technology ensures your engine runs smoothly and efficiently, providing peace of mind through reliable ignition performance and longevity.

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