The Autowares UR4 spark plug meets OE requirements and is ideal for your car. It delivers steady performance and has one of the finest anti-seize qualities, enhancing total combustion efficiency. The spark plug is comprised of long-lasting materials that will extend the life of your car. A black phenolic base with trivalent metal plating, carbon assembly, and a twisted ceramic insulator are among the product's characteristics. Key features: Provides dependable performance Improved ignitability as compared to ordinary nickel plugs Anti-seize is not required with trivalent metal plating. The highest OE criteria were met throughout testing. Original equipment manufacturer (OEM) or comparable spark plug Specifications: Brand: Autowares Manufacturer: Autowares Manufacturer s Part Number: 86-6630 Model: V-Power Product Dimensions: 8.4 x 2.4 x 2.1 Item model number: 6630 Exterior: Machined