NGK V-Power plugs feature a unique v-cut in the center electrode that directs the spark to the edge of the electrode, helping the spark develop more rapidly, increasing ignitability and reducing quenching. Trivalent metal plating provides superior anti-corrosion and anti-seizing properties Corrugated ribs prevent flashover Pure alumina silicate ceramic insulator, provides superior strength and better heat transfer Copper core aids in heat removal Triple seals prevent leakage MPN: BR7EF Specifications Warranty 1 Year Torque Specs Cast Iron: 10.8-18 lb. ft. Aluminum: 7.2-14.5 lb. ft. Brand NGK Heat Range 7 Longevity 30k Miles Resistor Yes Shell Thread Size 14mm Thread Pitch 1.25mm Seat Type Tapered Resistor Value 5K Ohm Reach 18mm (.709") Hex Size 5/8" (16mm) Terminal Type Solid Overall Height ISO Gap .028" (0.7mm) Center Electrode Material Nickel Type V-Cut Size 2.5mm Projection Non-Projected Ground Electrode Material Nickel Type Standard Quantity 1 Fitment Automotive 1994 Jaguar 1992 Jaguar 1991 Jaguar Non Automotive Sorry, no non-automotive applications are associated with this part.