NGK Copper Core Spark Plug - BR5HS (3722) Specifications: Reach: 12.7 mm (1/2") Thread Size: 14 mm Hex Size: 20.8 mm (13/16") Terminal Type: M4 Thread Seal Type: Gasket Seat Electrode Material: Standard Nickel Projection Type: Non-Projected Tip Configuration: Single Electrode Resistor: Yes Pack Size: 1 Single Unit Part Number: 37-BR5HS Features: Durable Construction: NGK's standard plugs are designed for longer life and optimal performance. Trivalent Metal Plating: Provides superior anti-corrosion and anti-seizing properties. Corrugated Ribs: Prevent flashover to ensure reliability. Pure Alumina Silicate Ceramic Insulator: Offers superior strength and efficient heat transfer. Copper Core: Aids in heat removal for improved performance and durability. Triple Seals: Prevent leakage, ensuring a consistent spark and longer-lasting performance.
