NGK standard spark plugs are engineered for long life and top performance. The trivalent metal coating on this plug prevents corrosion, while the corrugated ribs keep flashover at bay. The pure alumina silicate ceramic insulator provides the plug with outstanding strength and heat transfer. Furthermore, the copper core helps remove heat from the engine, allowing it to run more effectively. Key features: NGK standard plugs are designed for extended life and peak performance. Trivalent metal plating has excellent corrosion and anti-seizing capabilities. Corrugated ribs keep flashover at bay. This pure alumina silicate ceramic insulator provides superior strength and heat transmission. Heat removal is aided by the copper core. Triple seals keep leaks at bay. Specifications: Brand: Autowares Manufacturer: Autowares Model: CPR6EA-9 Product Dimensions: 3.07 x 0.85 x 0.74 Item model number: 6899 Manufacturer Part Number: 86- 6899 Resistor: Yes Resistor Value: 5k Ohm Heat Range: 6 Torque Specs: Cast Iron: 7.2-10.8 lb. ft. Aluminum: 7.2-8.7 lb. ft. Longevity: 30k Miles Shell Part: Thread Diameter: 10mm Thread Pitch: 1.0mm Seat Type: Gasket Reach: 19mm (3/4") Hex Size: 5/8" (16mm) Terminal Type: Threaded Stud Overall Height: ISO Gap: .035" (0.9mm) Center Electrode: Material: Nickel Type: Standard Size: 2.5mm Projection: Projected Ground Electrode: Material: Nickel Type: Standard Quantity: 1