High-quality plugs you can trust, L82C spark plugs (502189) for Johnson / Evinrude outboard motors. These Spark Plugs include a copper core electrode for enhanced conductivity and "sure-fire" engine performance. Plugs have the most robust triple seal assembly in the market and a triple-coated shell for outstanding corrosion resistance. Because of the copper core, precision rolled threads meet or exceed all manufacturer standards. Key Features: Triple-coated shell offers excellent corrosion resistance. Precision-rolled threads meet all manufacturer specifications. Industry's most robust triple-seal assembly Copper core enhances efficiency and durability. Suppression of RFI (Radio Frequency Interference) to safeguard sensitive electronics Resistant to overheating under severe load conditions Specifications: Brand: BRP SKU: 502189-PK Weight: 0.12 LBS Manufacturer Part Number (MPN): 502189 Type: Copper Plus Small Engine Reach: 12.7mm (1/2") Terminal Type: M4 Thread Diameter: 14mm Seal Type: Gasket Seat Electrode Material: Copper Core Projection Type: Non-Projected Resistor: No Tip Configuration: Single Electrode Hex Spanner Size: 20.8mm (13/16")