Champion Spark Plug RN9YC #415-1 Replaces N9YC BPR6ES BPR6ES11 BPR6EV BPR6EY BPR6EY11 F6RTC F6TC 018-3338-0 Purchase is for one spark plug. Dependable Performance - Features A Copper Core Electrode That Provides Increased Conductivity and Heat Control, Providing Good Overall Wear Characteristics. Dependable and Durable. Built to ISO and SAE standards for proven performance. Patented SAC-9 semi-conductor resistor for maximum EMI RFI suppression. Provides Longer Life. Copper core center electrode allows for accurate control of heat range, optimizing the performance and longevity of the spark plug. TinTac and ULTRASEAL Shell. Eliminates the need for use of anti-seize compound by providing the best corrosion protection of any spark plug in the industry. SPECIFICATIONS Center Electrode Diameter: 0.1 inch Electrode Core Material: Nickel Copper Alloy Electrode Tip Material: Nickel Copper Alloy Ground Electrode Core Material: Nickel Copper Alloy Ground Strap Quantity: 1 Installed Height: 2.24 inch Manufacturer Heat Range: 9 Reach: 0.94 inch Resistor: Y Seat Type: Gasket Tip Configuration: J Gap Type: RN9YC Wrench Diameter: 13/16 inch Thread: 14 mm MPN: 415 UPC: 037551011056 USA domestic shipments are shipped USPS Ground Advantage Mail with Tracking